date:20090515


Thanks Alex,

I will try that out definitely..any idea about scrolling them together
with single scrollbar on the right end ? like chad had mentioned it
wuold be a problem still.

thanks again
Suren

On May 15, 12:06 pm, alex.d alex.dukhov...@googlemail.com wrote:
 You don't have to use SplitterPanel - take two normal panels like
 vertical or horizontal and place them side by side. of course your
 table is then two tables - one with the first column, the other with
 the rest. It's tricky but you can make it work.

 On 15 Mai, 06:04, Suren nsurendi...@gmail.com wrote:



  Hi Chad,

  Thanks for the reply.

  I am interested to know about the first approach.

   You could just put two grids in a HorizontalSplitPanel and set the
   splitter bar so that only the left column is visible

  You actually mean here is that, place the header and data grid in a
  split panel side by side?
  In this case can I remove the splitter some how? so that it can look
  like a single grid?

   Of course, in either
   scenario, the trick will be getting them to scroll together, but I'll
   leave that small detail to you. ;)

  Yes I do understand that, but that is my next ache anyway

  Thanks again

  Suren

  On May 14, 6:07 pm, Chad chad...@gmail.com wrote:

   Suren,

   You could just put two grids in a HorizontalSplitPanel and set the
   splitter bar so that only the left column is visible. Or create two
   grids where the first grid only has one column and the second grid has
   all but the first column and put them side by side. You would have
   better control over the second scenario. Of course, in either
   scenario, the trick will be getting them to scroll together, but I'll
   leave that small detail to you. ;)

   HTH,
   Chad

   On May 14, 3:38 am, Suren nsurendi...@gmail.com wrote:

Hi All,

I want to overlay one grid over the other, so that I can create an
impression that the first column can be a fixed/freeze when scrolling
right.

An anyone has any other solution for keeping the first column as fixed/
freeze when we scroll right the grid?

Thanks
Suren- Hide quoted text -

   - Show quoted text -- Hide quoted text -

 - Show quoted text -
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Re: Question on GWT1.6

2009-05-15 Thread Rohit Vadera


Change in web.xml also did the trick.

On May 15, 12:32 pm, Pints rohitvad...@gmail.com wrote:
 Hi,

 I created the applictaion using Google Plugin and got the default
 GreetingService.

 On progressing further i changed GreetingService name to Service, as
 GreetingService doesn't suits for business applications, and got the
 following exception.

 java.lang.ClassNotFoundException:
 com.edge.app.server.GreetingServiceImpl
         at java.net.URLClassLoader$1.run(Unknown Source)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.net.URLClassLoader.findClass(Unknown Source)
         at java.lang.ClassLoader.loadClass(Unknown Source)
         at
 com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass
 (IsolatedAppClassLoader.java:142)
         at java.lang.ClassLoader.loadClass(Unknown Source)
         at org.mortbay.util.Loader.loadClass(Loader.java:91)

 Obviously somewhere some other configuration has to be done but as of
 now i am unable to figure out.

 I guess there should be a way to define multiple services as well in
 1.6.

 Any clues please.
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Re: Communication error [INFO] java.net.ConnectException: Connection refused while compiling under 1.6


Hi,

  [ERROR] Communication error
 [INFO]  java.net.ConnectException: Connection refused

The connection was refused, so the server you're trying to communicate
with is not accepting connections. You might want to check that.
Without more details that's all I can guess.

Hope that helps,

Salvador

On 15 mai, 03:23, BR benjamin.ren...@gmail.com wrote:
 I am getting this error while compiling with 1.6.4 under MacOSX 10.5.6

 Anyone knows why? It seems to compile fine otherwise.

  [ERROR] Communication error
 [INFO]          java.net.ConnectException: Connection refused
 [INFO]                  at java.net.PlainSocketImpl.socketConnect
 (Native Method)
 [INFO]                  at java.net.PlainSocketImpl.doConnect
 (PlainSocketImpl.java:333)
 [INFO]                  at java.net.PlainSocketImpl.connectToAddress
 (PlainSocketImpl.java:195)
 [INFO]                  at java.net.PlainSocketImpl.connect
 (PlainSocketImpl.java:182)
 [INFO]                  at java.net.SocksSocketImpl.connect
 (SocksSocketImpl.java:432)
 [INFO]                  at java.net.Socket.connect(Socket.java:520)
 [INFO]                  at java.net.Socket.connect(Socket.java:470)
 [INFO]                  at java.net.Socket.init(Socket.java:367)
 [INFO]                  at java.net.Socket.init(Socket.java:180)
 [INFO]                  at com.google.gwt.dev.CompilePermsServer.run
 (CompilePermsServer.java:242)
 [INFO]                  at com.google.gwt.dev.CompilePermsServer.main
 (CompilePermsServer.java:233)
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Re: Communication error [INFO] java.net.ConnectException: Connection refused while compiling under 1.6


Check that your firewall isn't blocking java. As far as I can tell,
that's the more likely reason for that kind of exception.

Hope that helps,

Salvador

On 15 mai, 03:23, BR benjamin.ren...@gmail.com wrote:
 I am getting this error while compiling with 1.6.4 under MacOSX 10.5.6

 Anyone knows why? It seems to compile fine otherwise.

  [ERROR] Communication error
 [INFO]          java.net.ConnectException: Connection refused
 [INFO]                  at java.net.PlainSocketImpl.socketConnect
 (Native Method)
 [INFO]                  at java.net.PlainSocketImpl.doConnect
 (PlainSocketImpl.java:333)
 [INFO]                  at java.net.PlainSocketImpl.connectToAddress
 (PlainSocketImpl.java:195)
 [INFO]                  at java.net.PlainSocketImpl.connect
 (PlainSocketImpl.java:182)
 [INFO]                  at java.net.SocksSocketImpl.connect
 (SocksSocketImpl.java:432)
 [INFO]                  at java.net.Socket.connect(Socket.java:520)
 [INFO]                  at java.net.Socket.connect(Socket.java:470)
 [INFO]                  at java.net.Socket.init(Socket.java:367)
 [INFO]                  at java.net.Socket.init(Socket.java:180)
 [INFO]                  at com.google.gwt.dev.CompilePermsServer.run
 (CompilePermsServer.java:242)
 [INFO]                  at com.google.gwt.dev.CompilePermsServer.main
 (CompilePermsServer.java:233)
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Re: Change font size on a DecoratedTabPanel


I think you're setting the font size in the wrong css classes. This is
where you should be specifying the font size for the text in the tabs:

.gwt-DecoratedTabBar .tabMiddleCenter { center of the tab, where the
tab text or widget resides }

The other classes apply style to parts of the tab bar where normally
there isn't any text, that's why you're not seeing any differences
whith your modifications. Take a look at the Showcase for styling of
tabPanel:
http://gwt.google.com/samples/Showcase/Showcase.html#CwTabPanel

The only css rule that specifies font rules is the one I pointed to:

.gwt-DecoratedTabBar .tabMiddleCenter {
  padding: 0px 4px 2px 4px;
  cursor: pointer;
  cursor: hand;
  color: black;
  font-weight: bold;
  text-align: center;
  background: #d0e4f6;
}

Hope that helps,

Salvador


On 15 mai, 03:51, Alyxandor a.revolution.ultra.b...@gmail.com wrote:
 Use em units {0.5 em}...
 Percent can sometimes be wonky if your DecoratedTabPanel is the child
 of an object with font-size set in px or pt.
 A quick google shows:

 http://www.thesug.org/Blogs/kyles/archive/2009/04/17/CSS_FontSize_em_...

 If this doesn't work, just inspect your table in Firefox + Firebug,
 and check all of it's parent element's font-sizes.

 If you still can't get it, post a condensed outline of your dom
 structure, with font-size styles included.
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Re: Rpc Issue [ Server Push ]


Here, this should help you getting started:
http://code.google.com/p/google-web-toolkit-incubator/wiki/ServerPushFAQ

Cheers,

Salvador

On 15 mai, 06:06, jagadesh jagadesh.manch...@gmail.com wrote:
 Hi guys ,

 iam working on a mail sort of application . my requirement is i want
 to implement a server push sort of application. when ever a mail comes
 to the database server , the server should push the mail to client .

 i tried by creating a rpc in gwt. but when the response comes back to
 client , the connection is said to closed. now
 i want to implement in such a way as the connection should still
 remain open and i will write a thread onn server side that
 contineously check the database for a perticular period of time for
 any new mails , if there are new then it will throw to the client.

 but how can i implement that technology . i got to know about comet
 technology which needs a special server like glassfish . i am working
 on tomcat right now.

 i can write a timer on client side  and can make a call to server
 contineously for new mails. but when ever iam making a call it is
 opening a new connection to server , what happens if a call response
 is still pending and a new call is made to server . may lead to memory
 leak

 IS THERE ANY ALTERNATE TO THE ABOVE THING ?

 Thanks For all the support 
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Re: Strange horizontal scrollbar issue


What exactly is your widget structure ? You might have wrong sizes in
one of your panels and that's hiding the srollbars (or something like
that, can't really tell without looking at the code)

Try looking at the compiled app with firebug on firefox (with the
Inspect functionality), that should tell you what's going on
exactly.

Hope that helps,

Salvador

On 15 mai, 06:22, Suren nsurendi...@gmail.com wrote:
 Hi All,

 I am using a Grid to display 100 rows and 80 columns.

 I used FixedWidthGrid and put that in ScrollTable (using incubator
 widgets).

 I wanted to introduce a toolbar at the top of the Grid. so I placed 7
 buttons with background image in place and put that in the Horizontal
 panel. Finally I added that panel to my RootPanel.

 The moment I 've done this, I lost my horizontal scorll bar in the
 scorll table (in IE). But firefox behaves differently. It has now two
 horizontal scrollbars, one for the browser and one for the
 scrolltable.

 Till before I add the horizontal Panel everything was perfect.

 What should I do in this case?

 Advance thanks many

 Suren
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Re: Get the httpparameter in the RPC


The RPC stub that you're talking about, is it the RPC implementation ?
Because if it is, it's just a normal servlet (see
http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/user/server/rpc/RemoteServiceServlet.html)
and as such, you have access to generic servlet methods.

Hope that helps;

Salvador

On 15 mai, 05:45, Francis francis@gmail.com wrote:
 hi,

 I'm new to GWT, I would like to ask if there anyway to get the http
 parameter in the RPC stub.?
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Re: Initialisation


Well, RPCs are as simple as it gets so I don't see how you could do
something simpler.

We do a first RPC in the onLoad method of our entry point to get some
values from the server. In the onSuccess method of our callback we
then call the initialization routines of our UI. What's the need for a
synchronous call ?

Hope that helps,

Salvador

On 15 mai, 09:59, aemik m...@emanuel-egger.de wrote:
 Hello,

 is it possible in GWT to do an initialisation?
 Before my Application will be loaded in the browser I need some data
 form the server.
 Is it possible to do an synchrone Call for this? Or something like
 this that is not so complicated like an RPC?

 Thanks, aemik
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Re: how to overlay one grid over the other?


Well, you could synchronize scrolling through scrollhandlers: add
scrollhandler to one of your tables, and in the onScroll method, make
the other table scroll to the desired position. Simple, isn't it ?

Good luck,

Salvador

On 15 mai, 10:04, Suren nsurendi...@gmail.com wrote:
 Thanks Alex,

 I will try that out definitely..any idea about scrolling them together
 with single scrollbar on the right end ? like chad had mentioned it
 wuold be a problem still.

 thanks again
 Suren

 On May 15, 12:06 pm, alex.d alex.dukhov...@googlemail.com wrote:

  You don't have to use SplitterPanel - take two normal panels like
  vertical or horizontal and place them side by side. of course your
  table is then two tables - one with the first column, the other with
  the rest. It's tricky but you can make it work.

  On 15 Mai, 06:04, Suren nsurendi...@gmail.com wrote:

   Hi Chad,

   Thanks for the reply.

   I am interested to know about the first approach.

You could just put two grids in a HorizontalSplitPanel and set the
splitter bar so that only the left column is visible

   You actually mean here is that, place the header and data grid in a
   split panel side by side?
   In this case can I remove the splitter some how? so that it can look
   like a single grid?

Of course, in either
scenario, the trick will be getting them to scroll together, but I'll
leave that small detail to you. ;)

   Yes I do understand that, but that is my next ache anyway

   Thanks again

   Suren

   On May 14, 6:07 pm, Chad chad...@gmail.com wrote:

Suren,

You could just put two grids in a HorizontalSplitPanel and set the
splitter bar so that only the left column is visible. Or create two
grids where the first grid only has one column and the second grid has
all but the first column and put them side by side. You would have
better control over the second scenario. Of course, in either
scenario, the trick will be getting them to scroll together, but I'll
leave that small detail to you. ;)

HTH,
Chad

On May 14, 3:38 am, Suren nsurendi...@gmail.com wrote:

 Hi All,

 I want to overlay one grid over the other, so that I can create an
 impression that the first column can be a fixed/freeze when scrolling
 right.

 An anyone has any other solution for keeping the first column as 
 fixed/
 freeze when we scroll right the grid?

 Thanks
 Suren- Hide quoted text -

- Show quoted text -- Hide quoted text -

  - Show quoted text -


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Re: getClass().getName() performance?


Check your file sizes without the calls, then check them again with
the calls.  File size will be number of classes * average package name
length.

The performance issue will be basically none.  The actually class in
the prototypes is an integer, that just points to the name.  Don't
worry about speed, just file size down the wire {with gzip, all the
repetiveness of package names should be cut down considerably}

If you have lots of getClass().getName(), and you don't want to
manually remove them, you COULD try to super-source the Class class to
return  for getName(), but I have a funny feeling this won't compile
or work right, since the compiler uses the names to hook everything
up...

GWT will clean up the object list, so memory leaks aren't an issue.

Cheers!
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Re: difficulties constructing reduced example of super-source


Good to hear.

Sorry about the hack.java.io part, I don't sleep much, so I
sometimes slip up ;-)

Basically, there's nothing you can do about your IDE...  I always have
a couple errors now that I use super-source, but I like to think of
them like, Error: GWT is too powerful for Java to handle, OVERLOAD!
OVERLOAD!

...Hahahaha.
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Re: how to overlay one grid over the other?


@alex.d - The only way to make the two panel approach work would be
to use Salvador's ScrollHandler linkage, plus a function to loop
through each row of both tables, measure the max height of each row,
and apply that height to an element inside each table; just beware
browser differences when measuring cells that have padding or margins!
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Using a servlet in GWT project

2009-05-15 Thread Scientist


Hi all,

I'm working on a GWT-project, and I got stuck in the part where I need
to send a file on the server-side to the browser, so a user can
download the file. I've done some reading, and found out the best way
to do this is to write a servlet which gets called from the project.
I've found a piece of code for the servlet:

[quote]
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class DownloadServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

public DownloadServlet() {
super();
}

protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {

}

protected void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
}

private void doDownload( HttpServletRequest req,
HttpServletResponse resp, String filename, String original_filename )
throws IOException {
File f= new File(filename);
int length   = 0;
ServletOutputStream op = resp.getOutputStream();
ServletContext context = getServletConfig().getServletContext();
String mimetype = context.getMimeType( filename );

resp.setContentType( (mimetype != null) ? mimetype : application/
octet-stream );
resp.setContentLength( (int)f.length() );
resp.setHeader( Content-Disposition, attachment; filename=\ +
original_filename + \ );

byte[] bbuf = new byte[0];
DataInputStream in = new DataInputStream(new FileInputStream(f));

while ((in != null)  ((length = in.read(bbuf)) != -1))
{
op.write(bbuf,0,length);
}

in.close();
op.flush();
op.close();
}
}
[/quote]

Don't know if this is usefull code, it doesn't give any errors in
Eclipse so that's a good start. Now for the main question: how do I
integrate this servlet in my GWT-project? In other words: what kind of
code do I have to place under the button so the servlet gets
triggered?

Trying to figure out for 3 days, so I hope someone knows the answer.
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Re: Strange horizontal scrollbar issue


Hi..
Please have a look at the code below and help me out in solving this
scrollbar issue


 HorizontalPanel h1=new HorizontalPanel();
 HorizontalPanel h2=new HorizontalPanel();
 HorizontalPanel h3=new HorizontalPanel();
 HorizontalPanel h4=new HorizontalPanel();

Button b1=new Button();
Button b2=new Button();
Button b3=new Button();
Button b4=new Button();
Button b5=new Button();
Button b6=new Button();
Button b7=new Button();

b1.addStyleName(buttonimage1);
b2.addStyleName(buttonimage2);
b3.addStyleName(buttonimage3);
b4.addStyleName(buttonimage4);
b5.addStyleName(buttonimage5);
b6.addStyleName(buttonimage6);
b7.addStyleName(buttonimage7);

b1.setWidth(20px);
b1.setHeight(20px);

b2.setWidth(20px);
b2.setHeight(20px);
b3.setWidth(20px);
b3.setHeight(20px);
b4.setWidth(20px);
b4.setHeight(20px);
b5.setWidth(20px);
b5.setHeight(20px);
b6.setWidth(20px);
b6.setHeight(20px);
b7.setWidth(20px);
b7.setHeight(20px);

h1.addStyleName(PanelStyle);
h2.addStyleName(PanelStyle);
h3.addStyleName(PanelStyle);
h4.addStyleName(PanelStyle);

h1.add(b1);
h1.setSpacing(7);
h2.setSpacing(0);
h2.add(b2);
h2.add(b3);
h2.add(b4);

h3.setSpacing(0);
h3.add(b5);
h3.add(b6);
h3.add(b7);
h1.add(h2);
h1.add(h3);

h4.add(h1);

h4.setBorderWidth(2);
h4.setWidth(100%);
h1.setHeight(15px);


RootPanel.get().add(h4);
//end
FixedWidthGrid g = new FixedWidthGrid(100,100);

FixedWidthFlexTable fx = new FixedWidthFlexTable();

fx.addStyleName(FlexTable);
g.addStyleName(FlexTable);

fx.setText(0, 0, Hi there);

for (int i=0;i100;i++){
g.setText(i, i, a);
}
ScrollTable st = new ScrollTable(g,fx);
st.setSize(100%, 100%);
st.setResizePolicy(ScrollTable.ResizePolicy.FIXED_WIDTH);

RootPanel.get().add(st);


CSS

.buttonimage1 {
background-image: url(refresh.bmp);
background-position: center;
background-repeat: no-repeat;
}

.buttonimage2 {
...
...
}

.FlexTable {
border: 1px solid gray;
background-color: #FF;
border-spacing: 0;
border-collapse: collapse;
margin: 0;
color: #ff;
font: bold;
table-layout: fixed;
}

.PanelStyle {
background-color: buttonface;
}


Thanks
Suren

On May 15, 1:41 pm, Salvador Diaz diaz.salva...@gmail.com wrote:
 What exactly is your widget structure ? You might have wrong sizes in
 one of your panels and that's hiding the srollbars (or something like
 that, can't really tell without looking at the code)

 Try looking at the compiled app with firebug on firefox (with the
 Inspect functionality), that should tell you what's going on
 exactly.

 Hope that helps,

 Salvador

 On 15 mai, 06:22, Suren nsurendi...@gmail.com wrote:



  Hi All,

  I am using a Grid to display 100 rows and 80 columns.

  I used FixedWidthGrid and put that in ScrollTable (using incubator
  widgets).

  I wanted to introduce a toolbar at the top of the Grid. so I placed 7
  buttons with background image in place and put that in the Horizontal
  panel. Finally I added that panel to my RootPanel.

  The moment I 've done this, I lost my horizontal scorll bar in the
  scorll table (in IE). But firefox behaves differently. It has now two
  horizontal scrollbars, one for the browser and one for the
  scrolltable.

  Till before I add the horizontal Panel everything was perfect.

  What should I do in this case?

  Advance thanks many

  Suren- Hide quoted text -

 - Show quoted text -
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To

Re: Dealing with html pages within your GWT application


Hm, I slogged through the code, but didn't really notice anything out
of place...  What I didn't see was any references to padding, try
setting it to 0px as well.  Then, inside the test page, do:
Window.setMargin(0px 0px 0px 0px); and Window.enableScrolling
(false);, in case it's your div making scrollbars inside the frame.
I've noticed that you can get scrollbars using iframes when the
content inside is exactly the size of the content outside...  Some
other hacks you can use {for various browsers} is setting margin to
-1px, setting overflow: visible !important; or hidden !important, {-
WILL work}.  Setting overflow-x and overflow-y to anything but auto
will always remove scrollbars...

As for the white spaces, I could tell you exactly what it is, but my
guess is it's the page body showing around your div.  Is it possible
to upload somewhere so I can inspect with Firebug?  It makes css
hacking soo easy!  Just press F12, click the inspect button, and
click on the element whose style you want to change.  You can even get
a bookmarklet that {kinda} works for IE7+, that's at 
http://getfirebug.com/lite.html
...But, I'd recommend downloading the js as per their instructions,
the bookmarlet tends to freeze my app, but that could also be because
IE is rendering my page, my graphics loop is constantly updating
values, the IE toolbar is reading those values, and then firebug tries
to weasle in there too...

Speaking of which, what browsers do you notice this in?  IE6 adds a
complimentary 10px horizontal padding to divs; you know, cos you
always want it, right?  Look up clearing stylesheets for IE.

Also, for css, quirksmode.org will save you many headaches.

PS, forgive the strange hour of my reply  I sleep during the day...
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Re: difficulties constructing reduced example of super-source




On 15 mai, 03:06, Alyxandor a.revolution.ultra.b...@gmail.com wrote:
 Are you getting a wrong package error?  Because if you aren't, you
 should!

Actually, I'd rather say you shouldn't add your super to the
projects build path (no need to compile the classes to Java .class,
with the risk of having them used in place of the Java runtime's ones;
only the source is needed, and only for the GWT Compiler, so what's
needed is that the super is in the classpath, not the build path!)
(however, adding it to the build path in Eclipse brings you better
editing, with better code completion, etc.)

Finally, it's more a matter of taste than a rule or even best
practice; but you have to understand what it means when you add the
super to the build path or not.

 Also, you've got to make your java.io hack-pack-age another level
 deeper...

Not necessarily. GWT's Emul package uses super-source/, and so do I
in GWT-in-the-AIR (cf. 
http://code.google.com/p/gwt-in-the-air/source/browse/trunk/super/net/ltgt/gwt/air/emul/
)

  You don't need to make two different source folders, that's
 just to minimize IDE confusions

My personal taste is the opposite (same as what's done in GWT's own
code)


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Re: Using a servlet in GWT project


Hi,

I answered this yesterday in this post:
http://groups.google.com/group/Google-Web-Toolkit/msg/9456d6f4a8ba0574

So here's the servlet code I use:
http://code.google.com/p/hellagwt/source/browse/trunk/hellagwt/src/main/java/fr/salvadordiaz/gwt/hellagwt/server/NzbUpload.java
And here's the UI code:
http://code.google.com/p/hellagwt/source/browse/trunk/hellagwt/src/main/java/fr/salvadordiaz/gwt/hellagwt/client/views/UploadPanel.java

You could also check out the whole project and build-test it with
maven.

Hope that helps,

Salvador

On 15 mai, 11:37, Scientist ma...@gl-power.nl wrote:
 Hi all,

 I'm working on a GWT-project, and I got stuck in the part where I need
 to send a file on the server-side to the browser, so a user can
 download the file. I've done some reading, and found out the best way
 to do this is to write a servlet which gets called from the project.
 I've found a piece of code for the servlet:

 [quote]
 import java.io.DataInputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import javax.servlet.ServletContext;
 import javax.servlet.ServletException;
 import javax.servlet.ServletOutputStream;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 public class DownloadServlet extends HttpServlet {
         private static final long serialVersionUID = 1L;

     public DownloadServlet() {
         super();
     }

         protected void doGet(HttpServletRequest request, HttpServletResponse
 response) throws ServletException, IOException {

         }

         protected void doPost(HttpServletRequest request, HttpServletResponse
 response) throws ServletException, IOException {
         }

     private void doDownload( HttpServletRequest req,
 HttpServletResponse resp, String filename, String original_filename )
 throws IOException {
         File f        = new File(filename);
         int length   = 0;
         ServletOutputStream op = resp.getOutputStream();
         ServletContext context = getServletConfig().getServletContext();
         String mimetype = context.getMimeType( filename );

         resp.setContentType( (mimetype != null) ? mimetype : application/
 octet-stream );
         resp.setContentLength( (int)f.length() );
         resp.setHeader( Content-Disposition, attachment; filename=\ +
 original_filename + \ );

         byte[] bbuf = new byte[0];
         DataInputStream in = new DataInputStream(new FileInputStream(f));

         while ((in != null)  ((length = in.read(bbuf)) != -1))
         {
                 op.write(bbuf,0,length);
         }

         in.close();
         op.flush();
         op.close();
         }}

 [/quote]

 Don't know if this is usefull code, it doesn't give any errors in
 Eclipse so that's a good start. Now for the main question: how do I
 integrate this servlet in my GWT-project? In other words: what kind of
 code do I have to place under the button so the servlet gets
 triggered?

 Trying to figure out for 3 days, so I hope someone knows the answer.
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Re: Strange horizontal scrollbar issue


Aye aye!  Firebug is key!  You can right click an element in HTML tab,
click add attribute, type style ENTER overflow-x:hidden ENTER, then
in the right hand panel, you can add / edit styles w/ autocomplete.
To add a new style in the css panel, just click on any entry, and
press enter until you get a cursor.  ...Of course, you probably know
this already, I just love talkin' about how great Firebug is...

If you're feeling lazy, try Window.enableScolling(false), which sets
body.style.overflow: hidden;

If you WANT vertical scrollbars, just do RootPanel.getBodyElement
().getStyle().setProperty(overflowX,hidden);

Actually, I do: .xVerticalOverflow{overflow: hidden !
important;overflow-x: hidden !important;overflow-y: auto !important;},
as IE6 choked without overriding the both overflow and overflow-x/
y.  Making the overflow hidden might force IE to give back your
horizontal scrollbar, and it will definitely fix Firefox...
RootPanel.getBodyElement().setClassName(xVerticalOverflow);  ...Or,
since you use incubator, define it in a CssResource for obfuscated
class names...
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Re: Strange horizontal scrollbar issue


Hi salvador,

Exactly you are right..

 st.setSize(100%, 100%);

The height of the ScrollTable is 100%, when I reduced to 90% I got
the scrollbar in both IE and Firefox.

Thanks for sheding some light on it

Suren



On May 15, 2:37 pm, Suren nsurendi...@gmail.com wrote:
 Hi..
 Please have a look at the code below and help me out in solving this
 scrollbar issue

                  HorizontalPanel h1=new HorizontalPanel();
              HorizontalPanel h2=new HorizontalPanel();
              HorizontalPanel h3=new HorizontalPanel();
              HorizontalPanel h4=new HorizontalPanel();

                         Button b1=new Button();
                         Button b2=new Button();
                         Button b3=new Button();
                         Button b4=new Button();
                         Button b5=new Button();
                         Button b6=new Button();
                         Button b7=new Button();

                         b1.addStyleName(buttonimage1);
                         b2.addStyleName(buttonimage2);
                         b3.addStyleName(buttonimage3);
                         b4.addStyleName(buttonimage4);
                         b5.addStyleName(buttonimage5);
                         b6.addStyleName(buttonimage6);
                         b7.addStyleName(buttonimage7);

                         b1.setWidth(20px);
                         b1.setHeight(20px);

                         b2.setWidth(20px);
                         b2.setHeight(20px);
                         b3.setWidth(20px);
                         b3.setHeight(20px);
                         b4.setWidth(20px);
                         b4.setHeight(20px);
                         b5.setWidth(20px);
                         b5.setHeight(20px);
                         b6.setWidth(20px);
                         b6.setHeight(20px);
                         b7.setWidth(20px);
                         b7.setHeight(20px);

                         h1.addStyleName(PanelStyle);
                         h2.addStyleName(PanelStyle);
                         h3.addStyleName(PanelStyle);
                         h4.addStyleName(PanelStyle);

                         h1.add(b1);
                 h1.setSpacing(7);
                 h2.setSpacing(0);
                 h2.add(b2);
                 h2.add(b3);
                 h2.add(b4);

                 h3.setSpacing(0);
                 h3.add(b5);
                 h3.add(b6);
                 h3.add(b7);
                 h1.add(h2);
                 h1.add(h3);

                 h4.add(h1);

                 h4.setBorderWidth(2);
                 h4.setWidth(100%);
                 h1.setHeight(15px);

                 RootPanel.get().add(h4);
                         //end
                 FixedWidthGrid g = new FixedWidthGrid(100,100);

                 FixedWidthFlexTable fx = new FixedWidthFlexTable();

                 fx.addStyleName(FlexTable);
                 g.addStyleName(FlexTable);

                 fx.setText(0, 0, Hi there);

                 for (int i=0;i100;i++){
                         g.setText(i, i, a);
                 }
                 ScrollTable st = new ScrollTable(g,fx);
                 st.setSize(100%, 100%);
                 st.setResizePolicy(ScrollTable.ResizePolicy.FIXED_WIDTH);

                 RootPanel.get().add(st);

         CSS
         
 .buttonimage1 {
         background-image: url(refresh.bmp);
         background-position: center;
         background-repeat: no-repeat;

 }

 .buttonimage2 {
         ...
         ...

 }

 .FlexTable {
         border: 1px solid gray;
         background-color: #FF;
         border-spacing: 0;
         border-collapse: collapse;
         margin: 0;
         color: #ff;
         font: bold;
         table-layout: fixed;

 }

 .PanelStyle {
         background-color: buttonface;

 }

 Thanks
 Suren

 On May 15, 1:41 pm, Salvador Diaz diaz.salva...@gmail.com wrote:



  What exactly is your widget structure ? You might have wrong sizes in
  one of your panels and that's hiding the srollbars (or something like
  that, can't really tell without looking at the code)

  Try looking at the compiled app with firebug on firefox (with the
  Inspect functionality), that should tell you what's going on
  exactly.

  Hope that helps,

  Salvador

  On 15 mai, 06:22, Suren nsurendi...@gmail.com wrote:

   Hi All,

   I am using a Grid to display 100 rows and 80 columns.

   I used FixedWidthGrid and put that in ScrollTable (using incubator
   widgets).

   I wanted to introduce a toolbar at the top of the Grid. so I placed 7
   buttons with background image in place and put that in the Horizontal
   panel. Finally I added that panel to my RootPanel.

   The moment I 've done this, I lost my horizontal scorll bar in the
   scorll table (in IE). But firefox behaves differently. It has now two
   horizontal scrollbars, one for the browser and one for the
   scrolltable.

   Till before I

Re: Using a servlet in GWT project


Take a look at the doGet method ;)

I pointed out to the wrong UI class though, this one show a file
browser and the user downloads any of the files by clicking on it:
http://code.google.com/p/hellagwt/source/browse/trunk/hellagwt/src/main/java/fr/salvadordiaz/gwt/hellagwt/client/views/DownloadsPanel.java

Hope that helps,

Salvador

On 15 mai, 11:59, Scientist ma...@gl-power.nl wrote:
 That's a piece of code to upload a file from client to server if I
 understand this correctly, in my case it needs to be the other way
 around. The system writes an XLS-file to the server, and the user
 needs to download that file to his laptop.

 Thanks anyway!

 On May 15, 11:52 am, Salvador Diaz diaz.salva...@gmail.com wrote:

  Hi,

  I answered this yesterday in this 
  post:http://groups.google.com/group/Google-Web-Toolkit/msg/9456d6f4a8ba0574

  So here's the servlet code I 
  use:http://code.google.com/p/hellagwt/source/browse/trunk/hellagwt/src/ma...
  And here's the UI 
  code:http://code.google.com/p/hellagwt/source/browse/trunk/hellagwt/src/ma...

  You could also check out the whole project and build-test it with
  maven.

  Hope that helps,

  Salvador

  On 15 mai, 11:37, Scientist ma...@gl-power.nl wrote:

   Hi all,

   I'm working on a GWT-project, and I got stuck in the part where I need
   to send a file on the server-side to the browser, so a user can
   download the file. I've done some reading, and found out the best way
   to do this is to write a servlet which gets called from the project.
   I've found a piece of code for the servlet:

   [quote]
   import java.io.DataInputStream;
   import java.io.File;
   import java.io.FileInputStream;
   import java.io.IOException;
   import javax.servlet.ServletContext;
   import javax.servlet.ServletException;
   import javax.servlet.ServletOutputStream;
   import javax.servlet.http.HttpServlet;
   import javax.servlet.http.HttpServletRequest;
   import javax.servlet.http.HttpServletResponse;

   public class DownloadServlet extends HttpServlet {
           private static final long serialVersionUID = 1L;

       public DownloadServlet() {
           super();
       }

           protected void doGet(HttpServletRequest request, 
   HttpServletResponse
   response) throws ServletException, IOException {

           }

           protected void doPost(HttpServletRequest request, 
   HttpServletResponse
   response) throws ServletException, IOException {
           }

       private void doDownload( HttpServletRequest req,
   HttpServletResponse resp, String filename, String original_filename )
   throws IOException {
           File f        = new File(filename);
           int length   = 0;
           ServletOutputStream op = resp.getOutputStream();
           ServletContext context = getServletConfig().getServletContext();
           String mimetype = context.getMimeType( filename );

           resp.setContentType( (mimetype != null) ? mimetype : application/
   octet-stream );
           resp.setContentLength( (int)f.length() );
           resp.setHeader( Content-Disposition, attachment; filename=\ +
   original_filename + \ );

           byte[] bbuf = new byte[0];
           DataInputStream in = new DataInputStream(new FileInputStream(f));

           while ((in != null)  ((length = in.read(bbuf)) != -1))
           {
                   op.write(bbuf,0,length);
           }

           in.close();
           op.flush();
           op.close();
           }}

   [/quote]

   Don't know if this is usefull code, it doesn't give any errors in
   Eclipse so that's a good start. Now for the main question: how do I
   integrate this servlet in my GWT-project? In other words: what kind of
   code do I have to place under the button so the servlet gets
   triggered?

   Trying to figure out for 3 days, so I hope someone knows the answer.- 
   Hide quoted text -

  - Show quoted text -


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Re: Help With Programmatic Events in 1.6


Wow, I'm a fool.


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Re: Question on GWT1.6


If you change one file name, you must change all three; Service,
ServiceAsync and ServiceImpl.  Then, go to your web.xml in war/WEB-INF
file, and make sure the classnames there have changed as well.
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Re: help required

2009-05-15 Thread पुनम------------

Hello,
Thanks for ur reply...
I followed what u told, but even then the project is not accepting any
properties of the jar and performing validations.
I am not understanding what to do further please help me
I have included the jar in the projects library folder where all the jars
required are kept.
Also, included it in the build path.Even then it is not working.
Please let me know if anything is remaining?
Thanks once again.

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Re: Question on GWT1.6


There's a handy wizard in Eclipse that does this automatically.

1. Right click in the class you wish to modify. Choose Refactor 
Rename from the context menu
2. You should check the options 'Update textual occurrences in
comments and strings' and 'Update fully-qualified named in non-java
text files' (maybe restrict to *.xml)
3. ...
4. Profit !

Of course this will not automatically change the Async nor the
interface name, but it will change the servlet declaration in web.xml

Hope that helps,

Salvador

PS: A screenshot of step 2:
http://bayimg.com/image/fapcoaabl.jpg

On 15 mai, 12:14, Alyxandor a.revolution.ultra.b...@gmail.com wrote:
 If you change one file name, you must change all three; Service,
 ServiceAsync and ServiceImpl.  Then, go to your web.xml in war/WEB-INF
 file, and make sure the classnames there have changed as well.
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Re: New bie question: import com.google.appengine cannot be resolved


Fred's methods are rock solid, look near the middle of the page for
the super-source hack needed to make Key happy for the client side.
There are very few restrictions on what can go into the client side,
{file operations and bytecode enhancements, mainly}.  To make life
easier, don't try to use any appengine stuff except annotations in
your client package; they are used by the gwt compiler, but never make
it into the actual code.  ...And be careful using Long keys, I hear
that you can only retrieve data with long keys using queries, and not
the persistence or entity managers...  Something about private
indexing and not being able to use them for root level getObjectById()
s or something.  I can't remember, and am too tired and new to
appengine to tell you for sure.  Just saying that if your
getObjectById fails, it's because it wants a String or Key key.

There's another problem I'm sure you're about to run into:  Bytecode
enhancement.  The dataNucleus tool uses Bytecode enhancement to make
objects that can be retrieved from the server, sent to the client,
modified there and then returned to the server and persisted back
without having to manually copy values.  It's a sweet enhancement, but
like I said before, these enhancements can fail on GWT {because it
uses an Object[] with various datatypes in it, and GWT can't get
access to it because it's an invisible field}.  The solution is to
make your entities non-detachable:

@PersistenceCapable(identityType = IdentityType.APPLICATION,
detachable = false)
public class Foo{}


Of course, this will be a pain, because now you can send the data to
gwt, but it can't put it back into the datastore.  Luckily, the
Timelord, Ray Cromwell, has fixed this for us:

http://timepedia.blogspot.com/2009/04/google-appengine-and-gwt-now-marriage.html

I also posted a hack there to make his fix fully bean-compatible, in
case you're using existing code.  The code I use internally is a
little different than the piece I posted there, but you get the
drift.  You don't need it if you make sure that, for all of your
persistent objects, you define a getValue() setValue() pair, with
identical names.  Using isValue() for booleans requires my hack.

If you want to get gwt + appengine datastore running, you have to use
Fred's super-source method on Key, in the client side, and Ray's
reflection-save method on the server-side.  Also, if you want a little
more security and smaller transfers across the wire, don't forget to
mark any persistent fields that gwt won't need {like your Keys} with
@Transient.  It tells RPC to skip the field, so you can keep sensitive
data where it belongs; out of the browser! {password fields, anyone?}
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Re: Empty object when returning from RPC call


Do your homework!

http://openlandscape.wordpress.com/2008/02/24/google-web-toolkits-gwt-fake-long/
http://www.ongwt.com/post/2008/02/25/GWT-and-the-Java-long-data-type


How hard is using (Long)?
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Re: JDOObjectNotFound exception when using getObjectById


Ya, having datanucleus around to solve all our problems is pretty
sweet...

You should worry whether your Long id will survive a trip through
GWT


http://openlandscape.wordpress.com/2008/02/24/google-web-toolkits-gwt...
http://www.ongwt.com/post/2008/02/25/GWT-and-the-Java-long-data-type

Also, detachable = true will tell the DataNucleus extension to add a
hidden Object[] to your class so it can be put back into the server.
The field is invisible, and contains multiple data types, so GWT does
not, and likely will not support it anytime soon.  Use

@PersistenceCapable(identityType = IdentityType.APPLICATION,
detachable = false)

And then to put your data back in the datastore, use Ray Cromwell's
mad reflection skills:

http://timepedia.blogspot.com/2009/04/google-appengine-and-gwt-now-marriage.html
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Re: help required


Does your jar have source attached?  Also, try putting a copy in
your war/WEB-INF/lib folder.

What build method do you use?  IDE?  Ant?  Cypal...  Don't use Cypal
anymore, the official GWT + Appengine plugin works like a dream,
provided your source level and source compliance level are set to
1.6...

For clarity, the IDE is happy, but the compiler isn't?

If it comes right down to it, you can tarball your project directory
and email it to me, and I can check it out, but I'd really rather
not...

Are you using Eclipse?  If you aren't, download 3.4 Ganymede {Galileo
is too new for the GWT plugin} and the Google Plugin, then make sure
your jar is in the project build path, AND war/WEB-INF/lib ...  If
that fails, send your code and I'll try to get it to go.
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Re: Help With Programmatic Events in 1.6


Ok, seriously, I'm here, trying to help, and you keep giving me
terrible ratings for it?

...SHALLOW!

Oh, and please give me another one-star for this post as well  I
know I'm not a doctor or anything, but I'm doing my best.

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Re: Compilation not renewing the files


Hm, I'm not sure what you're getting at...  Which output?  In the
hosted mode browser?  Just click refresh to update changes.  If that
doesn't work, close hosted mode and open it again {changing
configuration files like web.xml require a restart}.  Or do you mean
the compiled output?  Cos you have to press F5 to refresh that.
Describe with a little more detail what you are doing, and what you
expect to change.
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Re: how to overlay one grid over the other?


Hi,

After placing two simple panels side by side, now I have fixed data
Panel on the right and first column like panel on the left.

Now I need to add these two panels to a ScrollTable, since I already
have a fixed column header, by placing a FixedWidthFlexTable at the
top.

But the problem here is that, ScrollTable will only take an argument
of FixedWidthGrid and FixedWidthFlexTable

what I have now to achieve the fixed first column is two panels, and
each panel contains a FixedWidthGrid.

How can I combine these two panels in to a Grid form and pass that to
a scrollTable?

Any advise?

Thanks
Suren

On May 15, 2:34 pm, Alyxandor a.revolution.ultra.b...@gmail.com
wrote:
 @alex.d - The only way to make the two panel approach work would be
 to use Salvador's ScrollHandler linkage, plus a function to loop
 through each row of both tables, measure the max height of each row,
 and apply that height to an element inside each table; just beware
 browser differences when measuring cells that have padding or margins!
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Re: parsing dates


thanks for your replay mike, what i need it's quite simple but i still
couldn't do it.
I need a Date variable (not a string) in the format 12/05/2009 for
example.
I thought that getting a format with DateTimeFormat as dd/MM/
and making a new date variable with that format i would have some dd/
mm/ but i don't i only have a date variable like Tue May
12

The only case that i have something like dd/mm/ is a string wich
it anusefull for me.

Could you please help me!

On May 15, 12:00 am, mdwarne mike.wa...@gmail.com wrote:
 Hi sindroide,
 Are you trying to change a Text String date, into another Text String
 date?

 I'm not sure if I understand your needs.

 But, look at the static parse method in the Date class:

 Date d = Date.parse(Tue, xx);

 String newDate  = DateTimeFormat.getFormat(dd/MM/).format(d);

 Mike.

 On May 12, 3:28 am, sindroide efectob...@gmail.com wrote:

  Hi, I can not get in anyway a Date value like 2009/05/12 from text
  like 'Tue May 12 00:00:00 ART 2009'
  The only way I can not get illegalArgumentexception es like

  Date f = new Date();

  // this print like i want but it's text
  System.out.println(DateTimeFormat.getFormat(dd/MM/).format
  (f));

  //this prints date but ... in words format
  System.out.println(DateTimeFormat.getFormat(dd/MM/).parse
  (DateTimeFormat.getFormat(dd.MM.).format(f)));

  cuold you please help me. Thanks for advance!
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Re: Communication error [INFO] java.net.ConnectException: Connection refused while compiling under 1.6




On 15 mai, 03:23, BR benjamin.ren...@gmail.com wrote:
 I am getting this error while compiling with 1.6.4 under MacOSX 10.5.6

 Anyone knows why? It seems to compile fine otherwise.

AFAICT, the Compiler tries 2 kind of factories for its compile workers
(that allow compiling permutations in parallel, and make the whole
compile faster), a thread-based factory and a socket-based one (that
could even allows sharding a compile on multiple machines IIUC !).
The initialisation of the socket-based factory fails with the below
error, but the compilation continues with the remaining, thread-based,
factory (if no factory could have been created, only then it would
fail).

So you can safely ignore this error.

If you don't want it, from what I understand from the code, you should
be able to tell the compiler to only use the thread-based factory by
setting the gwt.jjs.permutationWorkerFactory system property to
com.google.gwt.dev.ThreadedPermutationWorkerFactory, e.g. by passing
the following to your java command line:
-
Dgwt.jjs.permutationWorkerFactory=com.google.gwt.dev.ThreadedPermutationWorkerFactory

  [ERROR] Communication error
 [INFO]          java.net.ConnectException: Connection refused
 [INFO]                  at java.net.PlainSocketImpl.socketConnect
 (Native Method)
 [INFO]                  at java.net.PlainSocketImpl.doConnect
 (PlainSocketImpl.java:333)
 [INFO]                  at java.net.PlainSocketImpl.connectToAddress
 (PlainSocketImpl.java:195)
 [INFO]                  at java.net.PlainSocketImpl.connect
 (PlainSocketImpl.java:182)
 [INFO]                  at java.net.SocksSocketImpl.connect
 (SocksSocketImpl.java:432)
 [INFO]                  at java.net.Socket.connect(Socket.java:520)
 [INFO]                  at java.net.Socket.connect(Socket.java:470)
 [INFO]                  at java.net.Socket.init(Socket.java:367)
 [INFO]                  at java.net.Socket.init(Socket.java:180)
 [INFO]                  at com.google.gwt.dev.CompilePermsServer.run
 (CompilePermsServer.java:242)
 [INFO]                  at com.google.gwt.dev.CompilePermsServer.main
 (CompilePermsServer.java:233)
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Re: AXIS I.P. camera

2009-05-15 Thread monk3y


Anyone else have any ideas?? I'm fresh out, :(.


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Re: parsing dates


ahh... I can format date value in any way in client side with
DateTimeFormat but always have a textual representation of date. wich
can not be compare with the Date i use in postgres... at least in my
poor knowledge

On May 15, 9:28 am, Salvador Diaz diaz.salva...@gmail.com wrote:
  I need a Date variable (not a string) in the format 12/05/2009 for
  example.

 You're confusing things. A date is an object holding information about
 an instant in time (typically this is represented internally as a
 long), it has nothing to do with formats. Now, for a more thorough
 explanation, go read the javadocs for the Date 
 object:http://java.sun.com/j2se/1.5.0/docs/api/java/util/Date.html

  i only have a date variable like Tue May 12

 If you're using eclipse I'm guessing that you're talking about the
 value that the Variables view in the Debug perspective shows for
 your date. That's the result of the toString method of the Date
 object, so it is only a specially formatted textual representation of
 that object. You can format a Date object in almost any way you want
 with a DateFormat instance in your server-side code (http://
 java.sun.com/j2se/1.5.0/docs/api/java/text/DateFormat.html) or with a
 DateTimeFormat in client-side GWT code (http://google-web-
 toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/i18n/client/
 DateTimeFormat.html)

 Would you mind describing exactly what you're trying to accomplish ?
 If it's doable in 2-3 lines of code somebody will eventually paste
 that 2-3 lines of code and you'll have what you need.

 Hope that helps,

 Salvador

 On 15 mai, 14:11, sindroide efectob...@gmail.com wrote:

  thanks for your replay mike, what i need it's quite simple but i still
  couldn't do it.
  I need a Date variable (not a string) in the format 12/05/2009 for
  example.
  I thought that getting a format with DateTimeFormat as dd/MM/
  and making a new date variable with that format i would have some dd/
  mm/ but i don't i only have a date variable like Tue May
  12

  The only case that i have something like dd/mm/ is a string wich
  it anusefull for me.

  Could you please help me!

  On May 15, 12:00 am, mdwarne mike.wa...@gmail.com wrote:

   Hi sindroide,
   Are you trying to change a Text String date, into another Text String
   date?

   I'm not sure if I understand your needs.

   But, look at the static parse method in the Date class:

   Date d = Date.parse(Tue, xx);

   String newDate  = DateTimeFormat.getFormat(dd/MM/).format(d);

   Mike.

   On May 12, 3:28 am, sindroide efectob...@gmail.com wrote:

Hi, I can not get in anyway a Date value like 2009/05/12 from text
like 'Tue May 12 00:00:00 ART 2009'
The only way I can not get illegalArgumentexception es like

Date f = new Date();

// this print like i want but it's text
System.out.println(DateTimeFormat.getFormat(dd/MM/).format
(f));

//this prints date but ... in words format
System.out.println(DateTimeFormat.getFormat(dd/MM/).parse
(DateTimeFormat.getFormat(dd.MM.).format(f)));

cuold you please help me. Thanks for advance!
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Re: GWT Validation Library

2009-05-15 Thread 0710


thank you for your reply but it doesn't seems correct.

i got this :
[ERROR] Unable to find 'eu/maydu/gwt/validation/
ValidationLibrary .gwt.xml' on your classpath; could be a typo, or
maybe you forgot to include a classpath entry for source?

i included the jar already.. does anyone else got this error?

On May 13, 5:07 pm, Salvador Diaz diaz.salva...@gmail.com wrote:
 eu.maydu.gwt.validation.ValidationLibrary

 On 13 mai, 16:53,ytbryanytbr...@gmail.com wrote:

  hi all,

  I refer to this gwt validation library.http://gwt-vl.maydu.eu/
  ValidationShowcase.html
  does anybody know what is the name of the inherited module?

  thank yoU!
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Re: Help With Programmatic Events in 1.6

2009-05-15 Thread Adam T


Hej Alyxandor,

I wouldn't get too disheartened by the star markings; anyone can click
any value of stars - sometimes the stars can help guide between good/
helpful answers from those that are less, sometimes I've seen things 1-
starred for no apparent reason (who really knows why 1 person clicked
a 1 star)

Personally, I think any answer can be useful if it moves the
discussion forwards.  In the case of the new event model, there's
really not that much documented, so there are bound to be lots of
problems/issues/questions - now between us all on this thread we've
got some approaches and points down on paper that will hopefully
help someone else in the future.

//Adam

On 15 Maj, 13:11, Alyxandor a.revolution.ultra.b...@gmail.com wrote:
 Ok, seriously, I'm here, trying to help, and you keep giving me
 terrible ratings for it?

 ...SHALLOW!

 Oh, and please give me another one-star for this post as well  I
 know I'm not a doctor or anything, but I'm doing my best.
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Re: parsing dates


We also use hibernate  spring for that kinds of things. Here's an
example (in a class extending HibernateDaoSupport):

public ListEmpleado getObjects(Date startDate){
  DetachedCriteria criteria = DetachedCriteria.forClass
(Empleado.class);
  criteria.add(Restrictions.ge(desde, startDate));//desde must be
the name of the field in your Empleado object

  ListEmpleado result = getHibernateTemplate().findByCriteria
(criteria);

  return result;
}

That's my recommended solution in Hibernate (notice that there are no
strings [besides the name of the field of course] just dates and
Empleados ;) )

Cheers,

Salvador

On 15 mai, 15:28, sindroide efectob...@gmail.com wrote:
 thanks Salvador... what i trying to do is a query to postgres db in
 wich one of the parameters it's a date.
 And if i send the textual date of Date variable the query fails...
 because postgres can't compare the two dates. I solved my problem in
 query doing something like

 from Empleadosgrupos e where idgrupo =? and idempleado =? and desde
 =to_date('+fechadesde+', 'DD/mm/'))

 I'm using hibernate and spring

 but it's a bad solution for me.. don't know
 I'd like just to send the date as it is... a Date value with dd/mm/
  ... in fact postgres has /mm/dd format but this difference
 seems doesn't mather for postgres

 I really appreciate your help!

 On May 15, 9:28 am, Salvador Diaz diaz.salva...@gmail.com wrote:

   I need a Date variable (not a string) in the format 12/05/2009 for
   example.

  You're confusing things. A date is an object holding information about
  an instant in time (typically this is represented internally as a
  long), it has nothing to do with formats. Now, for a more thorough
  explanation, go read the javadocs for the Date 
  object:http://java.sun.com/j2se/1.5.0/docs/api/java/util/Date.html

   i only have a date variable like Tue May 12

  If you're using eclipse I'm guessing that you're talking about the
  value that the Variables view in the Debug perspective shows for
  your date. That's the result of the toString method of the Date
  object, so it is only a specially formatted textual representation of
  that object. You can format a Date object in almost any way you want
  with a DateFormat instance in your server-side code (http://
  java.sun.com/j2se/1.5.0/docs/api/java/text/DateFormat.html) or with a
  DateTimeFormat in client-side GWT code (http://google-web-
  toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/i18n/client/
  DateTimeFormat.html)

  Would you mind describing exactly what you're trying to accomplish ?
  If it's doable in 2-3 lines of code somebody will eventually paste
  that 2-3 lines of code and you'll have what you need.

  Hope that helps,

  Salvador

  On 15 mai, 14:11, sindroide efectob...@gmail.com wrote:

   thanks for your replay mike, what i need it's quite simple but i still
   couldn't do it.
   I need a Date variable (not a string) in the format 12/05/2009 for
   example.
   I thought that getting a format with DateTimeFormat as dd/MM/
   and making a new date variable with that format i would have some dd/
   mm/ but i don't i only have a date variable like Tue May
   12

   The only case that i have something like dd/mm/ is a string wich
   it anusefull for me.

   Could you please help me!

   On May 15, 12:00 am, mdwarne mike.wa...@gmail.com wrote:

Hi sindroide,
Are you trying to change a Text String date, into another Text String
date?

I'm not sure if I understand your needs.

But, look at the static parse method in the Date class:

Date d = Date.parse(Tue, xx);

String newDate  = DateTimeFormat.getFormat(dd/MM/).format(d);

Mike.

On May 12, 3:28 am, sindroide efectob...@gmail.com wrote:

 Hi, I can not get in anyway a Date value like 2009/05/12 from text
 like 'Tue May 12 00:00:00 ART 2009'
 The only way I can not get illegalArgumentexception es like

 Date f = new Date();

 // this print like i want but it's text
 System.out.println(DateTimeFormat.getFormat(dd/MM/).format
 (f));

 //this prints date but ... in words format
 System.out.println(DateTimeFormat.getFormat(dd/MM/).parse
 (DateTimeFormat.getFormat(dd.MM.).format(f)));

 cuold you please help me. Thanks for advance!


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Re: parsing dates


sorry guys ... the query just work fine with the textual date for
postgres... sorry your time thanks again

On May 15, 9:28 am, Salvador Diaz diaz.salva...@gmail.com wrote:
  I need a Date variable (not a string) in the format 12/05/2009 for
  example.

 You're confusing things. A date is an object holding information about
 an instant in time (typically this is represented internally as a
 long), it has nothing to do with formats. Now, for a more thorough
 explanation, go read the javadocs for the Date 
 object:http://java.sun.com/j2se/1.5.0/docs/api/java/util/Date.html

  i only have a date variable like Tue May 12

 If you're using eclipse I'm guessing that you're talking about the
 value that the Variables view in the Debug perspective shows for
 your date. That's the result of the toString method of the Date
 object, so it is only a specially formatted textual representation of
 that object. You can format a Date object in almost any way you want
 with a DateFormat instance in your server-side code (http://
 java.sun.com/j2se/1.5.0/docs/api/java/text/DateFormat.html) or with a
 DateTimeFormat in client-side GWT code (http://google-web-
 toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/i18n/client/
 DateTimeFormat.html)

 Would you mind describing exactly what you're trying to accomplish ?
 If it's doable in 2-3 lines of code somebody will eventually paste
 that 2-3 lines of code and you'll have what you need.

 Hope that helps,

 Salvador

 On 15 mai, 14:11, sindroide efectob...@gmail.com wrote:

  thanks for your replay mike, what i need it's quite simple but i still
  couldn't do it.
  I need a Date variable (not a string) in the format 12/05/2009 for
  example.
  I thought that getting a format with DateTimeFormat as dd/MM/
  and making a new date variable with that format i would have some dd/
  mm/ but i don't i only have a date variable like Tue May
  12

  The only case that i have something like dd/mm/ is a string wich
  it anusefull for me.

  Could you please help me!

  On May 15, 12:00 am, mdwarne mike.wa...@gmail.com wrote:

   Hi sindroide,
   Are you trying to change a Text String date, into another Text String
   date?

   I'm not sure if I understand your needs.

   But, look at the static parse method in the Date class:

   Date d = Date.parse(Tue, xx);

   String newDate  = DateTimeFormat.getFormat(dd/MM/).format(d);

   Mike.

   On May 12, 3:28 am, sindroide efectob...@gmail.com wrote:

Hi, I can not get in anyway a Date value like 2009/05/12 from text
like 'Tue May 12 00:00:00 ART 2009'
The only way I can not get illegalArgumentexception es like

Date f = new Date();

// this print like i want but it's text
System.out.println(DateTimeFormat.getFormat(dd/MM/).format
(f));

//this prints date but ... in words format
System.out.println(DateTimeFormat.getFormat(dd/MM/).parse
(DateTimeFormat.getFormat(dd.MM.).format(f)));

cuold you please help me. Thanks for advance!
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Re: difficulties constructing reduced example of super-source

2009-05-15 Thread Jake B

Hi all,

Thanks again for the responses. See my replies below:

On Fri, May 15, 2009 at 5:51 AM, Thomas Broyer t.bro...@gmail.com wrote:

On 15 mai, 03:06, Alyxandor a.revolution.ultra.b...@gmail.com wrote:
Are you getting a wrong package error? Because if you aren't, you
should!

Actually, I'd rather say you shouldn't add your super to the
projects build path (no need to compile the classes to Java .class,
with the risk of having them used in place of the Java runtime's ones;
only the source is needed, and only for the GWT Compiler, so what's
needed is that the super is in the classpath, not the build path!)

OK, that's very interesting! The distinction between the classpath and
the build path was not something that was clear to me before. Now, I
believe it is, but I'm not sure, how do you add a path to the
classpath without adding it to the build path in Eclipse? The GWT
module still needs to be found on the classpath. I took a look at the
.classpath from gwt-in-the-air:

http://www.google.com/codesearch/p?hl=en#7KCk1V3Al4I/trunk/.classpathq=.classpath%20package:http://gwt-in-the-air\.googlecode\.com

It doesn't appear to reference super. Is this because .classpath sets
the project build path in Eclipse? How do you then set the classpath
so that the Emulation.gwt.xml module is finable, but not on the build
path?

(however, adding it to the build path in Eclipse brings you better
editing, with better code completion, etc.)

Finally, it's more a matter of taste than a rule or even best
practice; but you have to understand what it means when you add the
super to the build path or not.

I still don't have a clear sense of this. What would you say it means
to add super to the build path?

Also, you've got to make your java.io hack-pack-age another level
deeper...

Not necessarily. GWT's Emul package uses super-source/, and so do I
in GWT-in-the-AIR (cf.
http://code.google.com/p/gwt-in-the-air/source/browse/trunk/super/net/ltgt/gwt/air/emul/
)

I still can't seem to get that to work :(
Not sure why, but my use of the empty super-source/ tag always
causes GWT to fail. This is unfortunate, as it seems like it would be
the best way to make both GWT and the IDE happy. So, for example, with
gwt-in-the-air, my approach would have been to add
/super/net/ltgt/gwt/air/emul/ as a source folder (so, on the build
path). Then the emulated packages would be of the form java.*, which
would correspond to the declared package names in the *.java files.
This makes the IDE happy, and in my mind, it seems like GWT shouldn't
have a problem with it either. But, so far, this approach has always
failed for me, and I cannot see the reason for this, or where the
problem is originating. If someone can see it, and could point it out
to me, I would be extremely grateful.

Also, maybe if, as Thomas suggested, super wasn't on the build path,
then GWT won't freak out. But then, as Thomas said, you don't get the
IDE's help with these classes. I'll have to try this and see if it
makes a difference, but I'd really like to understand why the above
approach is failing.

Thanks,

Jake

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GWT Images loaded from GAE's Big Table

2009-05-15 Thread Pez


I am storing images as a BLOB in the GAE's Big Table and was wondering
how I present the images in GWT. From looking at the GWT Image class,
you have to set it up via an URL but I need to load it up via byte[].

How can I achieve this? I would persist the image data to the file
system to get a URL but the sandbox restricts doing so.

Best,
JP.
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Re: GWT Images loaded from GAE's Big Table

2009-05-15 Thread Peter Ondruška

Create regular servlet which will accept parameter with image name and will
write response consisting of your image (do not forget to set correct
content type header). In GWT you would have just a Image with src being path
to servlet plus parameter.

On Fri, May 15, 2009 at 4:35 PM, Pez james.austin.pe...@gmail.com wrote:


 I am storing images as a BLOB in the GAE's Big Table and was wondering
 how I present the images in GWT. From looking at the GWT Image class,
 you have to set it up via an URL but I need to load it up via byte[].

 How can I achieve this? I would persist the image data to the file
 system to get a URL but the sandbox restricts doing so.

 Best,
 JP.
 


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Re: difficulties constructing reduced example of super-source




On 15 mai, 16:06, Jake B otakuj...@gmail.com wrote:
 Hi all,

 Thanks again for the responses. See my replies below:

 On Fri, May 15, 2009 at 5:51 AM, Thomas Broyer t.bro...@gmail.com wrote:

  On 15 mai, 03:06, Alyxandor a.revolution.ultra.b...@gmail.com wrote:
  Are you getting a wrong package error?  Because if you aren't, you
  should!

  Actually, I'd rather say you shouldn't add your super to the
  projects build path (no need to compile the classes to Java .class,
  with the risk of having them used in place of the Java runtime's ones;
  only the source is needed, and only for the GWT Compiler, so what's
  needed is that the super is in the classpath, not the build path!)

 OK, that's very interesting! The distinction between the classpath and
 the build path was not something that was clear to me before.

The classpath is what you need to build or launch a Java app (java,
javac, the GWT's Compile, HostedMode, etc.).
The buildpath is what you compile from *.java to *.class, and you MUST
NOT compile your super-source classes to *.class or the Java runtime
could use them instead of its own classes (and fail, quite obviously).

 Now, I
 believe it is, but I'm not sure, how do you add a path to the
 classpath without adding it to the build path in Eclipse?

In your launch config, in the classpath tab, your can add a folder
(select user entries then click the advanced button).

 The GWT
 module still needs to be found on the classpath. I took a look at the
 .classpath from gwt-in-the-air:

 http://www.google.com/codesearch/p?hl=en#7KCk1V3Al4I/trunk/.classpathgooglecode\.com

 It doesn't appear to reference super. Is this because .classpath sets
 the project build path in Eclipse?

Yes. And it defines the default classpath for your launch
configurations (hence the name).

 How do you then set the classpath
 so that the Emulation.gwt.xml module is finable, but not on the build
 path?

As said above, in the launch config (Run menu, then Run
configurations...; or replace Run with Debug, they're the same
actually, at least in our case).

  (however, adding it to the build path in Eclipse brings you better
  editing, with better code completion, etc.)

  Finally, it's more a matter of taste than a rule or even best
  practice; but you have to understand what it means when you add the
  super to the build path or not.

 I still don't have a clear sense of this. What would you say it means
 to add super to the build path?

See above, Eclipse would compile those *.java to *.class so your code
is seen un run by the Java runtime when you launch, say, the GWT's
Compiler (and the Compiler is then using your own OutputStream instead
of the normal one)

  Also, you've got to make your java.io hack-pack-age another level
  deeper...

  Not necessarily. GWT's Emul package uses super-source/, and so do I
  in GWT-in-the-AIR 
  (cf.http://code.google.com/p/gwt-in-the-air/source/browse/trunk/super/net...
  )

 I still can't seem to get that to work :(
 Not sure why, but my use of the empty super-source/ tag always
 causes GWT to fail. This is unfortunate, as it seems like it would be
 the best way to make both GWT and the IDE happy. So, for example, with
 gwt-in-the-air, my approach would have been to add
 /super/net/ltgt/gwt/air/emul/ as a source folder (so, on the build
 path). Then the emulated packages would be of the form java.*, which
 would correspond to the declared package names in the *.java files.

I'm personnally adding super as a source folder, and live with the
error about the package declaration (which Alyxandor talked about
earlier).

 This makes the IDE happy, and in my mind, it seems like GWT shouldn't
 have a problem with it either.

That's where you're wrong, and where it hurts (see above for the
explanation, GWT is then using your own java.io.OutputStream class)

 But, so far, this approach has always
 failed for me, and I cannot see the reason for this, or where the
 problem is originating. If someone can see it, and could point it out
 to me, I would be extremely grateful.

Before launching GWT (Compiler or HostedMode), remove super from the
build path. And make sure your launch configurations have super
added in the classpath (therefore, GWT will be able to see the *.java
files, but there wouldn't be corresponding *.class files to distract
the Java runtime)


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GWT RPC DataStore

2009-05-15 Thread goetzchr


Hi @ all,

i want to create object from a custom class, send them over rpc to the
server and then store them into the google datastore.
my problem is to send objects from a class which i created over the
rpc to the server.
i've generated a client interface which both classes were
implementing.

but i always got a exception that my interface is not seriazible but
the interface extends the Serializable class.

i don't know what else to try because the rpc works, if i transfer a
String object.

is there a tutorial how to transfer custom classes with rpc ? i don't
found anything.

thanks...

chris

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Varargs are slow?

2009-05-15 Thread takayser


Hi

I read the following lines about varargs on
http://sinnema313.wordpress.com/2008/11/16/performance-tuning-a-gwt-application/

Variable argument lists are sometimes quite handy. However, we’ve
found that they come at a severe performance penalty, because a
JavaScript array needs to be created to wrap the arguments. So if at
all possible, use fixed argument lists, even though this may be less
convenient from a code writing/maintaining perspective.

Is that correct?

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GWT Hibernate issue

2009-05-15 Thread Raul


Hello all,

At present I am trying to integrate GWT Hibernate and MySQL in
Tomcat5. I am using Hibernate to access my database in a servlet as

public class DBConnectionImpl extends RemoteServiceServlet implements
DBConnection {
   private Session session;

public DBConnectionImpl() {
try {
session = 
HibernateUtil.getSessionFactory().openSession();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}

I have configured all the necessary Hibernate requirements like
hybernate.cfg.xml, web.xml, context.xml and all necessary java
classes.

But when I want to connect with my database through a rpc call it
shows me error like:



May 15, 2009 7:00:44 PM org.apache.catalina.core.ApplicationContext
log
SEVERE: Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract com.duke.irb.client.data.User
com.duke.irb.client.dao.DBConnection.authenticateUser
(java.lang.String,java.lang.String)' threw an unexpected exception:
java.lang.UnsupportedOperationException: Not supported by
BasicDataSource
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure
(RPC.java:360)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
(RPC.java:546)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
(RemoteServiceServlet.java:166)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
(RemoteServiceServlet.java:86)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke
(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke
(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service
(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol
$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:
665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket
(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt
(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run
(ThreadPool.java:689)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.UnsupportedOperationException: Not supported by
BasicDataSource
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection
(BasicDataSource.java:899)
at org.hibernate.connection.DatasourceConnectionProvider.getConnection
(DatasourceConnectionProvider.java:89)
at org.hibernate.jdbc.ConnectionManager.openConnection
(ConnectionManager.java:446)
at org.hibernate.jdbc.ConnectionManager.getConnection
(ConnectionManager.java:167)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142)
at org.hibernate.transaction.JDBCTransaction.begin
(JDBCTransaction.java:85)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:
1353)
at com.duke.irb.server.DBConnectionImpl.authenticateUser
(DBConnectionImpl.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
(RPC.java:527)
... 18 more




Please help me out in solving this issue.

I will provide more information further if needed.

I am new to both GWT and Hibernate... :-)


Thanks in advance
Raul

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Re: GWT Images loaded from GAE's Big Table

2009-05-15 Thread Pez


Ah, I was hoping I didn't have to do that but oh well. Thanks for the
reply.

Cheers,
- JP

On May 15, 3:50 pm, Peter Ondruška peter.ondru...@gmail.com wrote:
 Create regular servlet which will accept parameter with image name and will
 write response consisting of your image (do not forget to set correct
 content type header). In GWT you would have just a Image with src being path
 to servlet plus parameter.

 On Fri, May 15, 2009 at 4:35 PM, Pez james.austin.pe...@gmail.com wrote:

  I am storing images as a BLOB in the GAE's Big Table and was wondering
  how I present the images in GWT. From looking at the GWT Image class,
  you have to set it up via an URL but I need to load it up via byte[].

  How can I achieve this? I would persist the image data to the file
  system to get a URL but the sandbox restricts doing so.

  Best,
  JP.

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MenuBar.MenuBarImages

2009-05-15 Thread hamada


Salut

est ce que vous prouver me trouver une bon exemple d'utilisation de
l'interface MenuBar.MenuBarImages

Merci d'avance

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Enhancement to Tutorial on GWT-RPC

2009-05-15 Thread alessandro


In section 2. Invoking the service from the client, in the paragraph
titled Test the Remote Procedure Call, you might like to add that
the StockPrice class should have a zero argument constructor.
Forgetting this blocked me until I read the docs on serialization.

As this is a tutorial, it might be a good idea to suggest using
IsSerializable instead of java.io.Serializable by default.

Thanks for the excellent tutorial.

Alessandro

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Hosted mode servlets in GWT 1.6

2009-05-15 Thread Raman


http://code.google.com/webtoolkit/doc/1.6/DevGuideOrganizingProjects.html

says the following about servlet tag is the module.xml

NOTE: as of GWT 1.6, this tag does no longer loads servlets in hosted
mode, instead you must configure a WEB-INF/web.xml in your war
directory to load any servlets needed.

What I understand from this is that, I no longer need to supply the
servlet tag in the module XML. Instead I can provide the mappig in
war\WEB-INF\web.xml.

But this does not work for me. If I remove the servlet tag from the
module XML, my servlets are not hosted in hosted mode.

I really do not want the servlet mapping in the module XML because
these servlets are used only for JUnit tests. They are not shipped.
Having to specify the mapping in module XML, I have to modify the
module XML after I run the tests and before shipping.

Any idea?



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Re: parsing dates


hey salvador just because you mention... i use gilead for treating my
pojo's ...
what about that HibernateDaoSupport... ?

On May 15, 10:43 am, Salvador Diaz diaz.salva...@gmail.com wrote:
 We also use hibernate  spring for that kinds of things. Here's an
 example (in a class extending HibernateDaoSupport):

 public ListEmpleado getObjects(Date startDate){
   DetachedCriteria criteria = DetachedCriteria.forClass
 (Empleado.class);
   criteria.add(Restrictions.ge(desde, startDate));//desde must be
 the name of the field in your Empleado object

   ListEmpleado result = getHibernateTemplate().findByCriteria
 (criteria);

   return result;

 }

 That's my recommended solution in Hibernate (notice that there are no
 strings [besides the name of the field of course] just dates and
 Empleados ;) )

 Cheers,

 Salvador

 On 15 mai, 15:28, sindroide efectob...@gmail.com wrote:

  thanks Salvador... what i trying to do is a query to postgres db in
  wich one of the parameters it's a date.
  And if i send the textual date of Date variable the query fails...
  because postgres can't compare the two dates. I solved my problem in
  query doing something like

  from Empleadosgrupos e where idgrupo =? and idempleado =? and desde
  =to_date('+fechadesde+', 'DD/mm/'))

  I'm using hibernate and spring

  but it's a bad solution for me.. don't know
  I'd like just to send the date as it is... a Date value with dd/mm/
   ... in fact postgres has /mm/dd format but this difference
  seems doesn't mather for postgres

  I really appreciate your help!

  On May 15, 9:28 am, Salvador Diaz diaz.salva...@gmail.com wrote:

I need a Date variable (not a string) in the format 12/05/2009 for
example.

   You're confusing things. A date is an object holding information about
   an instant in time (typically this is represented internally as a
   long), it has nothing to do with formats. Now, for a more thorough
   explanation, go read the javadocs for the Date 
   object:http://java.sun.com/j2se/1.5.0/docs/api/java/util/Date.html

i only have a date variable like Tue May 12

   If you're using eclipse I'm guessing that you're talking about the
   value that the Variables view in the Debug perspective shows for
   your date. That's the result of the toString method of the Date
   object, so it is only a specially formatted textual representation of
   that object. You can format a Date object in almost any way you want
   with a DateFormat instance in your server-side code (http://
   java.sun.com/j2se/1.5.0/docs/api/java/text/DateFormat.html) or with a
   DateTimeFormat in client-side GWT code (http://google-web-
   toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/i18n/client/
   DateTimeFormat.html)

   Would you mind describing exactly what you're trying to accomplish ?
   If it's doable in 2-3 lines of code somebody will eventually paste
   that 2-3 lines of code and you'll have what you need.

   Hope that helps,

   Salvador

   On 15 mai, 14:11, sindroide efectob...@gmail.com wrote:

thanks for your replay mike, what i need it's quite simple but i still
couldn't do it.
I need a Date variable (not a string) in the format 12/05/2009 for
example.
I thought that getting a format with DateTimeFormat as dd/MM/
and making a new date variable with that format i would have some dd/
mm/ but i don't i only have a date variable like Tue May
12

The only case that i have something like dd/mm/ is a string wich
it anusefull for me.

Could you please help me!

On May 15, 12:00 am, mdwarne mike.wa...@gmail.com wrote:

 Hi sindroide,
 Are you trying to change a Text String date, into another Text String
 date?

 I'm not sure if I understand your needs.

 But, look at the static parse method in the Date class:

 Date d = Date.parse(Tue, xx);

 String newDate  = DateTimeFormat.getFormat(dd/MM/).format(d);

 Mike.

 On May 12, 3:28 am, sindroide efectob...@gmail.com wrote:

  Hi, I can not get in anyway a Date value like 2009/05/12 from text
  like 'Tue May 12 00:00:00 ART 2009'
  The only way I can not get illegalArgumentexception es like

  Date f = new Date();

  // this print like i want but it's text
  System.out.println(DateTimeFormat.getFormat(dd/MM/).format
  (f));

  //this prints date but ... in words format
  System.out.println(DateTimeFormat.getFormat(dd/MM/).parse
  (DateTimeFormat.getFormat(dd.MM.).format(f)));

  cuold you please help me. Thanks for advance!
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Error building trunk 1.6

2009-05-15 Thread Thad


Earlier this week (Monday, the 11th), I svn'ed the trunk and built
1.6.  I did this because I need OOPHM.  The build was successful and
I've been running with it since then.

I've since tried to update my build, but have been getting a failure
all week:
...
benchmark-viewer:

wardir:

javac:

gwtc:
 [java] Compiling module
com.google.gwt.benchmarks.viewer.ReportViewer
 [java] [ERROR] Unexpected
 [java] java.lang.NoSuchMethodError:
com.google.gwt.dev.javac.CompilationState.getCompilationUnits()Ljava/
util/Set;
 [java] at com.google.gwt.dev.jdt.AbstractCompiler.compile
(AbstractCompiler.java:473)
 [java] at
com.google.gwt.dev.jdt.WebModeCompilerFrontEnd.getCompilationUnitDeclarations
(WebModeCompilerFrontEnd.java:132)
 [java] at
com.google.gwt.dev.jdt.WebModeCompilerFrontEnd.getCompilationUnitDeclarations
(WebModeCompilerFrontEnd.java:57)
 [java] at
com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile
(JavaToJavaScriptCompiler.java:393)
 [java] at com.google.gwt.dev.Precompile.precompile
(Precompile.java:466)
 [java] at com.google.gwt.dev.Precompile.precompile
(Precompile.java:387)
 [java] at com.google.gwt.dev.Compiler.run(Compiler.java:191)
 [java] at com.google.gwt.dev.Compiler$1.run(Compiler.java:
144)
 [java] at com.google.gwt.dev.CompileTaskRunner.doRun
(CompileTaskRunner.java:84)
 [java] at
com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger
(CompileTaskRunner.java:78)
 [java] at com.google.gwt.dev.Compiler.main(Compiler.java:151)

BUILD FAILED
/home/thad/jdevel/gwt-svn/trunk/build.xml:57: The following error
occurred while executing this line:
/home/thad/jdevel/gwt-svn/trunk/build.xml:31: The following error
occurred while executing this line:
/home/thad/jdevel/gwt-svn/trunk/tools/build.xml:24: The following
error occurred while executing this line:
/home/thad/jdevel/gwt-svn/trunk/tools/build.xml:10: The following
error occurred while executing this line:
/home/thad/jdevel/gwt-svn/trunk/tools/benchmark-viewer/build.xml:59:
Java returned: 1

Total time: 1 minute 52 seconds

Any ideas?

Today's svn revision is 5383.  I'm running on SuSE Linux 10.3 with
Sun's JDK 1.5.0_17
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errors in compiling mosaic client code version 0.1.9.1

2009-05-15 Thread sergey


Below are the errors trace from the Host window. I'm not using those
classes but still all those red message quite annoying
Any suggestion/fixes?

[TRACE] Removing units with errors
[ERROR] Errors in 'jar:file:/C:/wseclipse/iDirectWebNms/WebContent/WEB-
INF/lib/gwt-mosaic-0.1.9.1.jar!/org/gwt/mosaic/core/client/util/
AbstractUnitConverter.java'
[ERROR] Line 221: The method getScreenResolution() is undefined for
the type DOM
[ERROR] Errors in 'jar:file:/C:/wseclipse/iDirectWebNms/WebContent/WEB-
INF/lib/gwt-mosaic-0.1.9.1.jar!/org/gwt/mosaic/core/client/
FontMetrics.java'
[ERROR] Line 59: The method getStringBoxSize(Element, String) is
undefined for the type DOM
[ERROR] Errors in 'jar:file:/C:/wseclipse/iDirectWebNms/WebContent/WEB-
INF/lib/gwt-mosaic-0.1.9.1.jar!/org/gwt/mosaic/ui/client/
Separator.java'
[ERROR] Line 21: The import
org.gwt.mosaic.ui.client.layout.BoxLayout.Alignment cannot be resolved
[ERROR] Line 47: Alignment cannot be resolved

-Sergey
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Re: Help With Programmatic Events in 1.6

2009-05-15 Thread rjcarr


Thanks to everyone ... I think you've all helped a little in different
ways, so much appreciated.
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Re: GWT Hibernate issue

2009-05-15 Thread Jim


You have to explicitly throw any exceptions in all service methods.


Jim
http://www.gwtorm.com For GWT ORM
http://code.google.com/p/dreamsource-orm/downloads/list

On May 15, 9:52 am, Raul raahoo...@gmail.com wrote:
 Hello all,

 At present I am trying to integrate GWT Hibernate and MySQL in
 Tomcat5. I am using Hibernate to access my database in a servlet as

 public class DBConnectionImpl extends RemoteServiceServlet implements
 DBConnection {
        private Session session;

         public DBConnectionImpl() {
                 try {
                         session = 
 HibernateUtil.getSessionFactory().openSession();
                 } catch (Exception ex) {
                         ex.printStackTrace();
                 }
         }

 }

 I have configured all the necessary Hibernate requirements like
 hybernate.cfg.xml, web.xml, context.xml and all necessary java
 classes.

 But when I want to connect with my database through a rpc call it
 shows me error like:

 May 15, 2009 7:00:44 PM org.apache.catalina.core.ApplicationContext
 log
 SEVERE: Exception while dispatching incoming RPC call
 com.google.gwt.user.server.rpc.UnexpectedException: Service method
 'public abstract com.duke.irb.client.data.User
 com.duke.irb.client.dao.DBConnection.authenticateUser
 (java.lang.String,java.lang.String)' threw an unexpected exception:
 java.lang.UnsupportedOperationException: Not supported by
 BasicDataSource
         at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure
 (RPC.java:360)
         at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
 (RPC.java:546)
         at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
 (RemoteServiceServlet.java:166)
         at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
 (RemoteServiceServlet.java:86)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
 (ApplicationFilterChain.java:269)
         at org.apache.catalina.core.ApplicationFilterChain.doFilter
 (ApplicationFilterChain.java:188)
         at org.apache.catalina.core.StandardWrapperValve.invoke
 (StandardWrapperValve.java:213)
         at org.apache.catalina.core.StandardContextValve.invoke
 (StandardContextValve.java:174)
         at org.apache.catalina.core.StandardHostValve.invoke
 (StandardHostValve.java:127)
         at org.apache.catalina.valves.ErrorReportValve.invoke
 (ErrorReportValve.java:117)
         at org.apache.catalina.core.StandardEngineValve.invoke
 (StandardEngineValve.java:108)
         at org.apache.catalina.connector.CoyoteAdapter.service
 (CoyoteAdapter.java:174)
         at org.apache.coyote.http11.Http11Processor.process
 (Http11Processor.java:874)
         at org.apache.coyote.http11.Http11BaseProtocol
 $Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:
 665)
         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket
 (PoolTcpEndpoint.java:528)
         at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt
 (LeaderFollowerWorkerThread.java:81)
         at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run
 (ThreadPool.java:689)
         at java.lang.Thread.run(Unknown Source)
 Caused by: java.lang.UnsupportedOperationException: Not supported by
 BasicDataSource
         at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection
 (BasicDataSource.java:899)
         at org.hibernate.connection.DatasourceConnectionProvider.getConnection
 (DatasourceConnectionProvider.java:89)
         at org.hibernate.jdbc.ConnectionManager.openConnection
 (ConnectionManager.java:446)
         at org.hibernate.jdbc.ConnectionManager.getConnection
 (ConnectionManager.java:167)
         at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142)
         at org.hibernate.transaction.JDBCTransaction.begin
 (JDBCTransaction.java:85)
         at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:
 1353)
         at com.duke.irb.server.DBConnectionImpl.authenticateUser
 (DBConnectionImpl.java:30)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
         at java.lang.reflect.Method.invoke(Unknown Source)
         at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
 (RPC.java:527)
         ... 18 more

 Please help me out in solving this issue.

 I will provide more information further if needed.

 I am new to both GWT and Hibernate... :-)

 Thanks in advance
 Raul
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Re: Enhancement to Tutorial on GWT-RPC

2009-05-15 Thread Pavel Byles

This is a popular issue with most people including myself.Do a search for
discussions on this in this group and you will find a lot of answers.

On Fri, May 15, 2009 at 10:06 AM, alessandro
alessandro.muzze...@gmail.comwrote:


 In section 2. Invoking the service from the client, in the paragraph
 titled Test the Remote Procedure Call, you might like to add that
 the StockPrice class should have a zero argument constructor.
 Forgetting this blocked me until I read the docs on serialization.

 As this is a tutorial, it might be a good idea to suggest using
 IsSerializable instead of java.io.Serializable by default.

 Thanks for the excellent tutorial.

 Alessandro

 



-- 
-Pav

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How to use MenuBar.MenuBarImages

2009-05-15 Thread hamada


Hi
please if you can give me one exemple how to use MenuBar.MenuBarImages

thanks
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Failed to import and run gwtrpc-spring example with Google plugin

2009-05-15 Thread hezjing

Hi

I'm having problem importing and run the gwtrpc-spring's example.

Here are the steps I performed:

1) Download
http://gwtrpc-spring.googlecode.com/files/GwtRpcSpringExample.zip
and extract the file to C:\GwtRpcSpringExample

2) Open Eclipse 3.4.2 (with Google Plugin 1.0.1)

3) Import the project by selecting File-New-Java Project
Create project from existing source (Directory: C:\GwtRpcSpringExample)

4) Enable the GWT SDK by right click GwtRpcSpringExample project, select
Google-Web Toolkit Settings
then, check the Use Google Web Toolkit box and click OK.

5)  When run from Eclipse, it causes the following error:

HTTP ERROR: 404
NOT_FOUND
RequestURI=/GwtRpcSpringExample.html



Well, I'm not sure if this could be the problem of the gwtrpc-spring example
:-)


-- 

Hez

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Re: Failed to import and run gwtrpc-spring example with Google plugin

2009-05-15 Thread Miguel Méndez

Are any errors being logged to the GWT Hosted Mode main window?

On Fri, May 15, 2009 at 12:57 PM, hezjing hezj...@gmail.com wrote:

 Hi

 I'm having problem importing and run the gwtrpc-spring's example.

 Here are the steps I performed:

 1) Download
 http://gwtrpc-spring.googlecode.com/files/GwtRpcSpringExample.zip
  and extract the file to C:\GwtRpcSpringExample

 2) Open Eclipse 3.4.2 (with Google Plugin 1.0.1)

 3) Import the project by selecting File-New-Java Project
 Create project from existing source (Directory: C:\GwtRpcSpringExample)

 4) Enable the GWT SDK by right click GwtRpcSpringExample project, select
 Google-Web Toolkit Settings
 then, check the Use Google Web Toolkit box and click OK.

 5)  When run from Eclipse, it causes the following error:

 HTTP ERROR: 404
  NOT_FOUND
 RequestURI=/GwtRpcSpringExample.html



 Well, I'm not sure if this could be the problem of the gwtrpc-spring
 example :-)


 --

 Hez

 



-- 
Miguel

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Re: @Resource path is OS-gnostic ( \ or / depending on the Win/Linux). What is a workaround?

Hi Igor,

The problem is that the resource annotation will only understand either:

1) A file name relative to the package. This must only be a file name, not a
path
2) A fully qualified path

The problem is that you're using a relative path for the file, which will
not work. You have to use the fully-qualified form, with forward slashes.

The fact that it works for Windows when using backslashes is an accident of
the implementation.


Rajeev

On Thu, May 14, 2009 at 12:46 PM, Igor Moochnick
igor.moochn...@gmail.comwrote:


 This is the error I'm getting on the Jetty (hosted) server when
 opening my application:

 [DEBUG] Loading an instance of module 'mymodule'
 [DEBUG] Rebinding com.mymodule.Myclient.Images
 [DEBUG] Invoking generate-with
 class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/
 [DEBUG] Analyzing method 'TopLeft' in type
 com.mymodule.Myclient.Images
 [ERROR] Unable to find image resource 'images/Dialogue_Corner.gif'
 [ERROR] Unable to load module entry point class com.mymodule.Myclient
 (see associated exception for details)
 [ERROR] Failure to load module 'mymodule'
 [ERROR] Deferred binding failed for 'com.mymodule.Myclient.Images';
 expect subsequent failures

 On May 4, 5:21 pm, Rajeev Dayal rda...@google.com wrote:
  Actually, the documentation says that GWT uses
 ClassLoader.getResource(..)
  to locate images. As a result, the syntax that you use in the annotation
  *should* be OS-agnostic. You should always use forward slashes ( / ) to
  separate path components.
 
  Is that not working for you?
 
  On Fri, May 1, 2009 at 6:20 PM, Igor Moochnick igor.moochn...@gmail.com
 wrote:
 
 
 
   I have a relative path use in the @Resource attribute on my image
   bundle. Apparently the direction of the slashes are important and
   depend on what OS I'm building my project.
 
   On Windows it has to be \  and on Linux - /.
 
  public interface Images extends ImageBundle
  {
  @Resource(images/Dialogue_Corner.gif)
  AbstractImagePrototype TopLeft();
  }
 
   The documentation mentions that the GWT uses System.getResource method
   to locate the images.
 
   Any idea how to make it OS independent?
 
   BWT: if the application written correctly on the Windows, it should
   pick the Linux slash / with no problem, but, apparently, Java
   getResource is not the case.
 


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Re: @Resource path is OS-gnostic ( \ or / depending on the Win/Linux). What is a workaround?

2009-05-15 Thread Igor Moochnick


Interesting ... In fact I was actually trying to use the relative
path.

The goal was to put the images (part of the application ImageBundles)
with the classes/widgets that are using them and then extra /images
folder (relative to the widget folder).

Then, if I put a full path, what are the best practices in
refactoring? When I move the whole folder - all the full pathes will
be broken.

  Thanks for your responses.


On May 15, 1:45 pm, Rajeev Dayal rda...@google.com wrote:
 Hi Igor,

 The problem is that the resource annotation will only understand either:

 1) A file name relative to the package. This must only be a file name, not a
 path
 2) A fully qualified path

 The problem is that you're using a relative path for the file, which will
 not work. You have to use the fully-qualified form, with forward slashes.

 The fact that it works for Windows when using backslashes is an accident of
 the implementation.

 Rajeev

 On Thu, May 14, 2009 at 12:46 PM, Igor Moochnick
 igor.moochn...@gmail.comwrote:



  This is the error I'm getting on the Jetty (hosted) server when
  opening my application:

  [DEBUG] Loading an instance of module 'mymodule'
  [DEBUG] Rebinding com.mymodule.Myclient.Images
  [DEBUG] Invoking generate-with
  class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/
  [DEBUG] Analyzing method 'TopLeft' in type
  com.mymodule.Myclient.Images
  [ERROR] Unable to find image resource 'images/Dialogue_Corner.gif'
  [ERROR] Unable to load module entry point class com.mymodule.Myclient
  (see associated exception for details)
  [ERROR] Failure to load module 'mymodule'
  [ERROR] Deferred binding failed for 'com.mymodule.Myclient.Images';
  expect subsequent failures

  On May 4, 5:21 pm, Rajeev Dayal rda...@google.com wrote:
   Actually, the documentation says that GWT uses
  ClassLoader.getResource(..)
   to locate images. As a result, the syntax that you use in the annotation
   *should* be OS-agnostic. You should always use forward slashes ( / ) to
   separate path components.

   Is that not working for you?

   On Fri, May 1, 2009 at 6:20 PM, Igor Moochnick igor.moochn...@gmail.com
  wrote:

I have a relative path use in the @Resource attribute on my image
bundle. Apparently the direction of the slashes are important and
depend on what OS I'm building my project.

On Windows it has to be \  and on Linux - /.

       public interface Images extends ImageBundle
       {
              �...@resource(images/Dialogue_Corner.gif)
               AbstractImagePrototype TopLeft();
       }

The documentation mentions that the GWT uses System.getResource method
to locate the images.

Any idea how to make it OS independent?

BWT: if the application written correctly on the Windows, it should
pick the Linux slash / with no problem, but, apparently, Java
getResource is not the case.
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Re: how to make gwt eclipse plugin compiler see other projects


Could anyone elaborate on the setting the dependent project's output
directory technique?

Right now I have set my dependent project's output directory to be the
war/WEB-INF/classes directory of my main project.  Additionally, I
have added the dependent projects source to MainProject/Properties/
Java Build Path/Source Tab via the Link Source button and to
MainProject/Debug Configurations/My Main Configuration Name/Source
Tab.  I have also added my dependent project to my main project's
build path just for good measure. However, I am still getting the No
source code is available for type
class.found.in.dependent.project.Name errors.

This method doesn't seem like it would work anyway because all I am
doing is including the class files in the project and not the java
source code, which is what the error message claims it is missing in
the first place.

I am going to attempt the jar file technique since that is known to
work.

Lastly, is there any place I can check periodically to see if this bug
has been fixed so that I will know when I can stop trying to
workaround this bug?

Thanks,
John

On Apr 17, 11:19 am, Jason Parekh jasonpar...@gmail.com wrote:
 Hey Joe,

 It looks like you're hitting an issue where the Eclipse plugin does
 not include a dependent project's compiled classes into the packaged
 WAR that is deployed to the server.  We're aware of the issue and it
 will be fixed in a future release.

 There are a couple workarounds, one of which you've tried (package the
 dependent project into a JAR, and statically link that into the main
 project).  The other is to set the dependent project's output
 directory to the main project's output directory.  When the hosted
 mode server runs (or the app engine tools upload to app engine), all
 classes in this directory will be included (including the dependent
 project's).

 jason

 On Fri, Apr 17, 2009 at 8:31 AM, Joe Hudson joe...@gmail.com wrote:

  Thank you Salvador for your reply,

  I am have tried that (I think) and that was when I experience
  described above.  Please let me explain how I am doing that because
  maybe I am doing something wrong:

  1) Open the Run Configurations menu
  2) Select my target under Web Application (with the google icon)
  3) Go to the Classpath tab, select User Entries, click Add
  Project and select my project
  4) Go to the Source tab, click Add, select Java Project and
  select my project
  5) Click Apply

  So, this is what I have tried and I get errors when I start up the app
  that it can not find the source of the classes from my server
  project.  Any ideas?

  Thanks

  Joe

  On Apr 17, 4:13 am, Salvador Diaz diaz.salva...@gmail.com wrote:
  Add the other project to the classpath instead of adding the jar

  On Apr 17, 7:10 am, Joe Hudson joe...@gmail.com wrote:

   Hi,

   I have a separate eclipse project containing code used on the server-
   side of the RPC.  When I use the google plugin to recompile my GWT
   app, I get the error messages saying that the source code can't be
   found.  I can get this to work by exporting the project to a jar (with
   source) and referencing the jar (as opposed to the project directly)
   in the classpath of the GWT project.

   This is do-able but I would really like to know if this is possible
   and if there is anything special that has to be done for the plugin to
   recognize the source from another project.

   I am pretty sure that the plugin sees the classpath as it is not
   giving an error that the imported gwt.xml file can not be found.

   Thank you very much for any help you might have to offer.

   Joe
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Re: No source code is available for type Error on Web Mode Compile


Yes,  I have a source path=model/ element.  I think the link in
Alex's response explains my issue pretty well.

On May 14, 9:34 pm, Alyxandor a.revolution.ultra.b...@gmail.com
wrote:
 Does DbPojo.gwt.xml have source path=model/ element in it?  Cos by
 default, gwt looks for source from /path/to/Module.gwt.xml /path/to/
 client.  You use source to change this {just be wary, I haven't done
 this since 1.4, and it was a little buggy about setting the source
 path back to client...

 Cheers!
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Eclipse GWT: How to include source from other projects?


I have a GWT Web Application project (call it Client, package
com.example.web) in Eclipse that needs to see some Java classes in
another project (project Common in package com.example.shared). I can
set the Eclipse project properties to include Common/bin as a class
folder and link the source folder Common/bin as Client/common-bin,
and Eclipse doesn't show errors.

However, when I try to run the Client project in hosted mode, GWT
spits out the message No source code is available for type
com.example.shared.Foo; did you forget to inherit a required module?

Shouldn't GWT be working with Eclipse's build path? Is there somewhere
else I should be including the path to the Common source?

It doesn't make sense to include com.shared.Common as an inherits in
the GWT module file, since it's just a regular Java library.

What is the right approach?

(Eclipse 3.4.2, Ubuntu 8.10, GWT plugin 1.6.4, Sun Java 6)

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Re: Eclipse GWT: How to include source from other projects?

2009-05-15 Thread Alex Rudnick


Hey Tim,

There should probably be a FAQ entry about this. It's currently a use
case that the plugin doesn't support very well, but it's on our list
of things for upcoming versions.

There was an earlier thread in which Jason discusses how to deal with
this issue:
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/951499c5773693c9

(this was brought up on a thread yesterday, actually)
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/46cf35719329b30

Hope this helps!

On Fri, May 15, 2009 at 1:51 PM, Tim McCormack ti...@ccs.neu.edu wrote:

 I have a GWT Web Application project (call it Client, package
 com.example.web) in Eclipse that needs to see some Java classes in
 another project (project Common in package com.example.shared). I can
 set the Eclipse project properties to include Common/bin as a class
 folder and link the source folder Common/bin as Client/common-bin,
 and Eclipse doesn't show errors.

-- 
Alex Rudnick
swe, gwt, atl

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Re: how to make gwt eclipse plugin compiler see other projects


On May 15, 2:13 pm, John john.set...@gmail.com wrote:
 I am going to attempt the jar file technique since that is known to
 work.

I'm encountering the same issue. Can you explain exactly what you are
doing with the Jar file approach?

 - Tim McCormack
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Re: No source code is available for type Error on Web Mode Compile

Hi John,

What version of the plugin are you currently using? We just released a new
version of the plugin (1.0.1) a couple of days ago that may fix this
problem. Here are the release notes:

http://code.google.com/eclipse/docs/release_notes.html

Although the problem that you're having is not explicitly mentioned in this
list, I know that we had some issues with classpath computation for GWT
Compiles.

See http://code.google.com/eclipse/docs/updating_the_plugin.html for
instructions on updating the plugin.

However, the problem that Alex mentioned above still exists. That is, if you
have a GWT, App Engine, or GWT + App Engine project (call it project A), and
that project depends on another project (call it project B), the classes for
project B are not automatically copied into project A's war directory.

Now, suppose that project B only has GWT client source in it (no RPC) - then
the new version of the plugin will handle this case - it will automatically
pull the dependent project's source folders onto the classpath when
compiling or running hosted mode.

If it is the case that project B is using GWT but defines RPC interfaces and
RPC data objects (which seems to be your case), then you'll have a problem,
because you'll need the class files from the RPC data objects in project A's
war directory. So, to make your situation work, I think you'll have to go
with the workaround of exporting a jar from project B, and adding a
reference to it on project A's classpath.

Sorry about the inconvenience; we're planning on fixing this issue in the
future.


Rajeev

On Fri, May 15, 2009 at 2:16 PM, John john.set...@gmail.com wrote:


 Yes,  I have a source path=model/ element.  I think the link in
 Alex's response explains my issue pretty well.

 On May 14, 9:34 pm, Alyxandor a.revolution.ultra.b...@gmail.com
 wrote:
  Does DbPojo.gwt.xml have source path=model/ element in it?  Cos by
  default, gwt looks for source from /path/to/Module.gwt.xml /path/to/
  client.  You use source to change this {just be wary, I haven't done
  this since 1.4, and it was a little buggy about setting the source
  path back to client...
 
  Cheers!
 


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JSON, HTTP POST and Django - json contaminated with newlines

2009-05-15 Thread Hannson


Hi all,

I'm having some issues with json, http post and django.

The issue is that the JSONObject.toString() or HTTP POST request
builder contaminates the json string with newlines causing malformed
javascript to be sent and a ValueError thrown in Djangos simplejson
parser on the other side.

Here's how  I build the request:

if(this.key != null)
{
JSONObject form = new JSONObject();

form.put(key, new JSONString(this.key));
form.put(content, new 
JSONString(getDocumentContent()));
form.put(title, new JSONString(getDocumentTitle()));

try {

requestBuilder.sendRequest(json=+form.toString(), new JSONhandler
());
} catch (RequestException e) {
Window.alert(e.getMessage());
e.printStackTrace();
}
}

Here's how I process the request in Django:

def save_page(request):
if(request.method == 'GET'):
pass
else:
json = request.POST['json']

decoder = simplejson.JSONDecoder()
props = decoder.decode(json)

try:
page_id = 1
page_alias = Start

m_page = Page.objects.get(pk=page_id)
except Page.DoesNotExist:

m_page = Page(alias=page_alias, rev=0)
m_page.save()

title = props['title']
content = props['content']
title = test
content=json
revision = Revisions(page=m_page, rev=m_page.rev+1,
title=title, content=content)
revision.save()

m_page.rev = m_page.rev + 1
m_page.save()

return render_to_response(it works)




I've determined that the newlines most likely added in the HTTP
request builder, but I haven't been able to debug it.

Has anyone here encountered and solved this problem before?
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Re: onModuleLoad is sometimes not called (Internet Explorer)

2009-05-15 Thread Joel Webber

Steve,
I can't seem to reproduce the problem on my end, but for what it's worth,
latching with a timeout like that is going to be pretty brittle in practice.
Here's an alternative formulation that won't be flaky:

HTML:

  script

  function onGwtAppLoaded() {

alert(w00t!);

  }

  /script

Java:

  public void onModuleLoad() {

setLoaded();

  }


  public native void setLoaded() /*-{

if ($wnd.onGwtAppLoaded) {

  $wnd.onGwtAppLoaded();

}

  }-*/;

This works because the GWT linkers all make the guarantee that
onModuleLoad() will not be called until the DOM is ready (i.e. all the DOM
elements, including the body, are fully-evaluated, including scripts). So
there's no chance that onGwtAppLoaded() will *not* be defined when
onModuleLoad() is called.

Hope this helps,
joel.

On Thu, May 14, 2009 at 12:38 PM, Steve M ste...@emnico.com wrote:


 Hi,

 I am seeing a problem in Internet Explorer whereby it appears that
 onModeulLoad() does not get called.

 In the HTML ive added the following to highlight the problem...

 script
 var t=setTimeout(testLoaded(),3);

 function testLoaded()
 {
if (window.Loaded==undefined)
{
alert(onload didnt run);
}
 }

 /script


 My GWT code...


public void onModuleLoad()
{
setLoaded();

... now initialise the GWT
}



public native void setLoaded()
/*-{
  $wnd.Loaded = loaded;
}-*/;


 Intermitently using Internet Explorer, it simply fails to call the
 onModuleLoad() method, and you get the onload didnt run method.

 Any ideas on this one? Seems quite a serious flaw.

 GWT version: 1.5.3
 IE: 7.0.5730.11IC

 thanks, Steve M
 


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Re: Tree SelectionEvent fired twice

2009-05-15 Thread Sumit Chandel

Hi meandi,
Thanks for the repro code. I was able to reproduce what you're talking
about.

It seems like the double-fire only occurs if a TreeItem was in a previously
open state, and has transitioned from open to close. The double-fire doesn't
occur if instead the previous state was closed and the transition was from
close to open. That said, I'm not sure why the double-fire occurs in the
first case. As I see it, this is probably an issue that needs some fixing.

I've opened Issue #3660 to track and investigate this issue.

Issue #3660:
http://code.google.com/p/google-web-toolkit/issues/detail?id=3660

In the meantime, here is an albeit messy workaround that should get you
running for the time being.

int comingFromSetState = 0;
boolean prevOpenState = true;

public void onSelection(SelectionEventTreeItem event) {
  TreeItem item = event.getSelectedItem();
  if(item.getChildCount() == 0) {
controller.navigationChanged(item);
  }
  else {
if(comingFromSetState == 1  prevOpenState) {
  comingFromSetState++;
}
if(comingFromSetState != 2) {
  comingFromSetState++;
  item.setState(!item.getState());
  prevOpenState = !item.getState();

} else {
  comingFromHere = 0;
  prevOpenState = true;
}
  }
}

Hope that helps,
-Sumit Chandel

On Wed, May 13, 2009 at 3:18 AM, meandi mr-gu...@gmx.de wrote:


 Hello Sumit Chandel,

 it does not work in hosted mode, with IE7 and Firefox3.
 I added no widgets to the tree, only Strings in the Constructor of
 TreeItem, my implementation of setDefaults() looked like yours.
 So when I run the app (in hosted mode) I can click on root and the
 branch is opened. If I click on a leaf below the root item, the
 controller is called once and performs the Window.alert(item.getText
 ()); command. Clicking on moreitems performs the action like
 expected. But if I click once more on moreitems, the event is fired
 twice and the branch will be closed and opened again. This behavior
 seems weird to me.


 Greetings meandi

 I tried again in a new project, to ensure that no side effects appear.
 Here is the source code:

 NavigationView.java

 package de.jomawo.tree.client;

 import com.google.gwt.event.logical.shared.SelectionEvent;
 import com.google.gwt.event.logical.shared.SelectionHandler;
 import com.google.gwt.user.client.ui.Composite;
 import com.google.gwt.user.client.ui.Panel;
 import com.google.gwt.user.client.ui.Tree;
 import com.google.gwt.user.client.ui.TreeItem;
 import com.google.gwt.user.client.ui.VerticalPanel;

 public class NavigationView extends Composite implements
 SelectionHandlerTreeItem {

 // Attribute
 Panel panel = new VerticalPanel();
Tree tree = new Tree();
 ApplicationController controller = null;

public NavigationView(ApplicationController controller){
 setDefaults();
panel.add(tree);
tree.addSelectionHandler(this);
initWidget(panel);
 this.controller = controller;
}

private void setDefaults(){
 TreeItem root = new TreeItem(root);
  root.addItem(item0);
  root.addItem(item1);
  root.addItem(item2);
  TreeItem moreItems = new TreeItem(moreitems);
  moreItems.addItem(moreitems1);
  moreItems.addItem(moreitems2);
  moreItems.addItem(moreitems3);
  root.addItem(moreItems);
  tree.addItem(root);
}

 public void onSelection(SelectionEventTreeItem event) {
TreeItem item = event.getSelectedItem();
if(item.getChildCount() == 0) {
 controller.navigationChanged(item);
 }
else {
item.setState(!item.getState());
 // Window.alert(item.getState());
}
}
 }

 Tree.java

 package de.jomawo.tree.client;

 import com.google.gwt.core.client.EntryPoint;

 public class Tree implements EntryPoint {

public void onModuleLoad() {
ApplicationController controller = new
 ApplicationController();
RootPanel.get().add(new NavigationView(controller));
}
 }

 ApplicationController.java

 package de.jomawo.tree.client;

 import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.ui.TreeItem;

 public class ApplicationController {
public void navigationChanged(TreeItem item){
Window.alert(item.getText());
 }
 }



 On 12 Mai, 01:43, Sumit Chandel sumitchan...@google.com wrote:
  Hi meandi,
  I couldn't reproduce the issue you described using the code snippet you
  provided (along with the setDefault() method implementation below.
 
  private void setDefaults(){
// Building the tree ...
TreeItem root = new TreeItem(root);
root.addItem(item0);
root.addItem(item1);

Re: @Resource path is OS-gnostic ( \ or / depending on the Win/Linux). What is a workaround?

You are correct - if you end up refactoring, you'll have to change the
references in the @Resource annotation. The only other way around this is to
place the images themselves in the same package as your ImageBundle, and
then you can use relative references.

You can file a Request for Enhancement to support relative paths in
ImageBundle @Resource annotatios, if you'd like

On Fri, May 15, 2009 at 1:53 PM, Igor Moochnick igor.moochn...@gmail.comwrote:


 Interesting ... In fact I was actually trying to use the relative
 path.

 The goal was to put the images (part of the application ImageBundles)
 with the classes/widgets that are using them and then extra /images
 folder (relative to the widget folder).

 Then, if I put a full path, what are the best practices in
 refactoring? When I move the whole folder - all the full pathes will
 be broken.

  Thanks for your responses.


 On May 15, 1:45 pm, Rajeev Dayal rda...@google.com wrote:
  Hi Igor,
 
  The problem is that the resource annotation will only understand either:
 
  1) A file name relative to the package. This must only be a file name,
 not a
  path
  2) A fully qualified path
 
  The problem is that you're using a relative path for the file, which will
  not work. You have to use the fully-qualified form, with forward slashes.
 
  The fact that it works for Windows when using backslashes is an accident
 of
  the implementation.
 
  Rajeev
 
  On Thu, May 14, 2009 at 12:46 PM, Igor Moochnick
  igor.moochn...@gmail.comwrote:
 
 
 
   This is the error I'm getting on the Jetty (hosted) server when
   opening my application:
 
   [DEBUG] Loading an instance of module 'mymodule'
   [DEBUG] Rebinding com.mymodule.Myclient.Images
   [DEBUG] Invoking generate-with
   class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/
   [DEBUG] Analyzing method 'TopLeft' in type
   com.mymodule.Myclient.Images
   [ERROR] Unable to find image resource 'images/Dialogue_Corner.gif'
   [ERROR] Unable to load module entry point class com.mymodule.Myclient
   (see associated exception for details)
   [ERROR] Failure to load module 'mymodule'
   [ERROR] Deferred binding failed for 'com.mymodule.Myclient.Images';
   expect subsequent failures
 
   On May 4, 5:21 pm, Rajeev Dayal rda...@google.com wrote:
Actually, the documentation says that GWT uses
   ClassLoader.getResource(..)
to locate images. As a result, the syntax that you use in the
 annotation
*should* be OS-agnostic. You should always use forward slashes ( / )
 to
separate path components.
 
Is that not working for you?
 
On Fri, May 1, 2009 at 6:20 PM, Igor Moochnick 
 igor.moochn...@gmail.com
   wrote:
 
 I have a relative path use in the @Resource attribute on my image
 bundle. Apparently the direction of the slashes are important and
 depend on what OS I'm building my project.
 
 On Windows it has to be \  and on Linux - /.
 
public interface Images extends ImageBundle
{
@Resource(images/Dialogue_Corner.gif)
AbstractImagePrototype TopLeft();
}
 
 The documentation mentions that the GWT uses System.getResource
 method
 to locate the images.
 
 Any idea how to make it OS independent?
 
 BWT: if the application written correctly on the Windows, it should
 pick the Linux slash / with no problem, but, apparently, Java
 getResource is not the case.
 


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Re: @Resource path is OS-gnostic ( \ or / depending on the Win/Linux). What is a workaround?

2009-05-15 Thread Igor Moochnick


You mean PACKAGE or MODULE?   In fact I do use PACKAGEs.

Because I'm actually using packages for my widgets and, in fact,
that's what broken.

This is how I've structured my code:

com.myserver.client  - all the usual client code
com.myserver.client.widgets  - here I put our custom widgets
(and all the images related to them)
com.myserver.client.widgets.images   - this is where I WANT to put all
the images so the upper level folder will be free

Since, in Java, packages are directly related to the folder structure,
the @Resource(images/Dialogue_Corner.gif)  is broken and not working
consistently across the OSes.

   Thanks.

On May 15, 3:30 pm, Rajeev Dayal rda...@google.com wrote:
 You are correct - if you end up refactoring, you'll have to change the
 references in the @Resource annotation. The only other way around this is to
 place the images themselves in the same package as your ImageBundle, and
 then you can use relative references.

 You can file a Request for Enhancement to support relative paths in
 ImageBundle @Resource annotatios, if you'd like

 On Fri, May 15, 2009 at 1:53 PM, Igor Moochnick 
 igor.moochn...@gmail.comwrote:



  Interesting ... In fact I was actually trying to use the relative
  path.

  The goal was to put the images (part of the application ImageBundles)
  with the classes/widgets that are using them and then extra /images
  folder (relative to the widget folder).

  Then, if I put a full path, what are the best practices in
  refactoring? When I move the whole folder - all the full pathes will
  be broken.

   Thanks for your responses.

  On May 15, 1:45 pm, Rajeev Dayal rda...@google.com wrote:
   Hi Igor,

   The problem is that the resource annotation will only understand either:

   1) A file name relative to the package. This must only be a file name,
  not a
   path
   2) A fully qualified path

   The problem is that you're using a relative path for the file, which will
   not work. You have to use the fully-qualified form, with forward slashes.

   The fact that it works for Windows when using backslashes is an accident
  of
   the implementation.

   Rajeev

   On Thu, May 14, 2009 at 12:46 PM, Igor Moochnick
   igor.moochn...@gmail.comwrote:

This is the error I'm getting on the Jetty (hosted) server when
opening my application:

[DEBUG] Loading an instance of module 'mymodule'
[DEBUG] Rebinding com.mymodule.Myclient.Images
[DEBUG] Invoking generate-with
class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/
[DEBUG] Analyzing method 'TopLeft' in type
com.mymodule.Myclient.Images
[ERROR] Unable to find image resource 'images/Dialogue_Corner.gif'
[ERROR] Unable to load module entry point class com.mymodule.Myclient
(see associated exception for details)
[ERROR] Failure to load module 'mymodule'
[ERROR] Deferred binding failed for 'com.mymodule.Myclient.Images';
expect subsequent failures

On May 4, 5:21 pm, Rajeev Dayal rda...@google.com wrote:
 Actually, the documentation says that GWT uses
ClassLoader.getResource(..)
 to locate images. As a result, the syntax that you use in the
  annotation
 *should* be OS-agnostic. You should always use forward slashes ( / )
  to
 separate path components.

 Is that not working for you?

 On Fri, May 1, 2009 at 6:20 PM, Igor Moochnick 
  igor.moochn...@gmail.com
wrote:

  I have a relative path use in the @Resource attribute on my image
  bundle. Apparently the direction of the slashes are important and
  depend on what OS I'm building my project.

  On Windows it has to be \  and on Linux - /.

         public interface Images extends ImageBundle
         {
                �...@resource(images/Dialogue_Corner.gif)
                 AbstractImagePrototype TopLeft();
         }

  The documentation mentions that the GWT uses System.getResource
  method
  to locate the images.

  Any idea how to make it OS independent?

  BWT: if the application written correctly on the Windows, it should
  pick the Linux slash / with no problem, but, apparently, Java
  getResource is not the case.
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Re: how to make gwt eclipse plugin compiler see other projects


Tim,

Jar Method:
1. Remove any Buid Path references between your two projects.
2. Build a jar file from your project that is a dependency.  Make sure
to check the boxes that say Add directory entries and Add Java
Source
3. Add this jar file to your main projects build path.
4. Try to compile GWT.

On May 15, 2:52 pm, Tim McCormack ti...@ccs.neu.edu wrote:
 On May 15, 2:13 pm, John john.set...@gmail.com wrote:

  I am going to attempt the jar file technique since that is known to
  work.

 I'm encountering the same issue. Can you explain exactly what you are
 doing with the Jar file approach?

  - Tim McCormack
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Re: how to make gwt eclipse plugin compiler see other projects


Disregard my previous post I figured out what was wrong.  Both Jason's
jar method and the output folder method work.

I have two different modules in my main project only one of them uses
a java references to my dependent project.  However in order to get
GWT to compile I had to put inherits tags to my dependent project in
both modules.  When I reexamined the compile log I realized that the
module I thought wasn't compile was and the module that shouldn't care
about my dependent project was not compiling.



On May 15, 2:13 pm, John john.set...@gmail.com wrote:
 Could anyone elaborate on the setting the dependent project's output
 directory technique?

 Right now I have set my dependent project's output directory to be the
 war/WEB-INF/classes directory of my main project.  Additionally, I
 have added the dependent projects source to MainProject/Properties/
 Java Build Path/Source Tab via the Link Source button and to
 MainProject/Debug Configurations/My Main Configuration Name/Source
 Tab.  I have also added my dependent project to my main project's
 build path just for good measure. However, I am still getting the No
 source code is available for type
 class.found.in.dependent.project.Name errors.

 This method doesn't seem like it would work anyway because all I am
 doing is including the class files in the project and not the java
 source code, which is what the error message claims it is missing in
 the first place.

 I am going to attempt the jar file technique since that is known to
 work.

 Lastly, is there any place I can check periodically to see if this bug
 has been fixed so that I will know when I can stop trying to
 workaround this bug?

 Thanks,
 John

 On Apr 17, 11:19 am, Jason Parekh jasonpar...@gmail.com wrote:

  Hey Joe,

  It looks like you're hitting an issue where the Eclipse plugin does
  not include a dependent project's compiled classes into the packaged
  WAR that is deployed to the server.  We're aware of the issue and it
  will be fixed in a future release.

  There are a couple workarounds, one of which you've tried (package the
  dependent project into a JAR, and statically link that into the main
  project).  The other is to set the dependent project's output
  directory to the main project's output directory.  When the hosted
  mode server runs (or the app engine tools upload to app engine), all
  classes in this directory will be included (including the dependent
  project's).

  jason

  On Fri, Apr 17, 2009 at 8:31 AM, Joe Hudson joe...@gmail.com wrote:

   Thank you Salvador for your reply,

   I am have tried that (I think) and that was when I experience
   described above.  Please let me explain how I am doing that because
   maybe I am doing something wrong:

   1) Open the Run Configurations menu
   2) Select my target under Web Application (with the google icon)
   3) Go to the Classpath tab, select User Entries, click Add
   Project and select my project
   4) Go to the Source tab, click Add, select Java Project and
   select my project
   5) Click Apply

   So, this is what I have tried and I get errors when I start up the app
   that it can not find the source of the classes from my server
   project.  Any ideas?

   Thanks

   Joe

   On Apr 17, 4:13 am, Salvador Diaz diaz.salva...@gmail.com wrote:
   Add the other project to the classpath instead of adding the jar

   On Apr 17, 7:10 am, Joe Hudson joe...@gmail.com wrote:

Hi,

I have a separate eclipse project containing code used on the server-
side of the RPC.  When I use the google plugin to recompile my GWT
app, I get the error messages saying that the source code can't be
found.  I can get this to work by exporting the project to a jar (with
source) and referencing the jar (as opposed to the project directly)
in the classpath of the GWT project.

This is do-able but I would really like to know if this is possible
and if there is anything special that has to be done for the plugin to
recognize the source from another project.

I am pretty sure that the plugin sees the classpath as it is not
giving an error that the imported gwt.xml file can not be found.

Thank you very much for any help you might have to offer.

Joe
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Re: @Resource path is OS-gnostic ( \ or / depending on the Win/Linux). What is a workaround?

Hi Igor,

Responses inline:

On Fri, May 15, 2009 at 3:47 PM, Igor Moochnick igor.moochn...@gmail.comwrote:


 You mean PACKAGE or MODULE?   In fact I do use PACKAGEs.


I mean package.




 Because I'm actually using packages for my widgets and, in fact,
 that's what broken.

 This is how I've structured my code:

 com.myserver.client  - all the usual client code
 com.myserver.client.widgets  - here I put our custom widgets
 (and all the images related to them)
 com.myserver.client.widgets.images   - this is where I WANT to put all
 the images so the upper level folder will be free

 Since, in Java, packages are directly related to the folder structure,
 the @Resource(images/Dialogue_Corner.gif)  is broken and not working
 consistently across the OSes.


I know that if you use a backslash, that this works on Windows. However,
have you tested to see if this would work as-is in its current formulation
on Mac or Linux? The reason that I ask is that I suspect it would not. Even
though changing the forward slash to a backslash appears to fix the problem
on windows, it is an accident of the implementation of ImageBundleGenerator.
Here is the relevant chunk of code in ImageBundleGenerator:

  // If the name has no slashes (that is, it isn't a fully-qualified
resource
// name), then prepend the enclosing package name automatically, being
// careful about the default package.
if (imgFileName.indexOf(/) == -1) {
  String pkgName = method.getPackageName();
  if (!.equals(pkgName)) {
imgFileName = pkgName.replace('.', '/') + / + imgFileName;
  }
}

So, you see, the code basically assumes that if there are any forward
slashes in the image name (where the image name is taken verbatim as the
value of the resource annotation), then it is assumed to be an absolute
reference. When you changed the slash to a backslash, the code here
determined that there were no forward slashes in the resource name, and
pre-pended the package name to the image file name. So, the fact that a
relative reference worked was accidental. Does that make sense?



   Thanks.

 On May 15, 3:30 pm, Rajeev Dayal rda...@google.com wrote:
  You are correct - if you end up refactoring, you'll have to change the
  references in the @Resource annotation. The only other way around this is
 to
  place the images themselves in the same package as your ImageBundle, and
  then you can use relative references.
 
  You can file a Request for Enhancement to support relative paths in
  ImageBundle @Resource annotatios, if you'd like
 
  On Fri, May 15, 2009 at 1:53 PM, Igor Moochnick 
 igor.moochn...@gmail.comwrote:
 
 
 
   Interesting ... In fact I was actually trying to use the relative
   path.
 
   The goal was to put the images (part of the application ImageBundles)
   with the classes/widgets that are using them and then extra /images
   folder (relative to the widget folder).
 
   Then, if I put a full path, what are the best practices in
   refactoring? When I move the whole folder - all the full pathes will
   be broken.
 
Thanks for your responses.
 
   On May 15, 1:45 pm, Rajeev Dayal rda...@google.com wrote:
Hi Igor,
 
The problem is that the resource annotation will only understand
 either:
 
1) A file name relative to the package. This must only be a file
 name,
   not a
path
2) A fully qualified path
 
The problem is that you're using a relative path for the file, which
 will
not work. You have to use the fully-qualified form, with forward
 slashes.
 
The fact that it works for Windows when using backslashes is an
 accident
   of
the implementation.
 
Rajeev
 
On Thu, May 14, 2009 at 12:46 PM, Igor Moochnick
igor.moochn...@gmail.comwrote:
 
 This is the error I'm getting on the Jetty (hosted) server when
 opening my application:
 
 [DEBUG] Loading an instance of module 'mymodule'
 [DEBUG] Rebinding com.mymodule.Myclient.Images
 [DEBUG] Invoking generate-with
 class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/
 [DEBUG] Analyzing method 'TopLeft' in type
 com.mymodule.Myclient.Images
 [ERROR] Unable to find image resource 'images/Dialogue_Corner.gif'
 [ERROR] Unable to load module entry point class
 com.mymodule.Myclient
 (see associated exception for details)
 [ERROR] Failure to load module 'mymodule'
 [ERROR] Deferred binding failed for 'com.mymodule.Myclient.Images';
 expect subsequent failures
 
 On May 4, 5:21 pm, Rajeev Dayal rda...@google.com wrote:
  Actually, the documentation says that GWT uses
 ClassLoader.getResource(..)
  to locate images. As a result, the syntax that you use in the
   annotation
  *should* be OS-agnostic. You should always use forward slashes (
 / )
   to
  separate path components.
 
  Is that not working for you?
 
  On Fri, May 1, 2009 at 6:20 PM, Igor Moochnick 
   igor.moochn...@gmail.com
 wrote:

Re: JSON, HTTP POST and Django - json contaminated with newlines

2009-05-15 Thread Hannson


I think I was wrong.

This problem does not happen unless the json string contains quotes
(escaped automatically by GWT like this: this is a string that
contains \quotes\ ), even when URL.encoded. I'm not sure if this is
a GWT or Django issue.

Does anyone have any ideas?

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Re: can gwt be used with a templete languge sush as Django

2009-05-15 Thread Hannson


Yes it can. To do this you need to create a new EntryPoint class that
creates an instance of your widget/app and adds it onto the RootPanel.

Example:

class MyEntryPoint implements EntryPoint
{

/**
 * This is the entry point method.
 */
public void onModuleLoad() {

RichTextArea editor = new RichTextArea();
RootPanel.get(RTA-wrapper).add(editor);

}
}



Now you can create a template in your favorite language/framework.
Start by copying the details of the default HTML from gwt such as the
CSS, script tags, etc... and paste it into your new template. Create
a DIV with the ID RTA-wrapper (div id=RTA-wrapper/div) for your
widget or application to load into.

Example template for Django:
!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN
html
head
title{{title}} - Editing/title
{% include default_css.html %}

meta http-equiv=content-type content=text/html;
charset=UTF-8
link type=text/css rel=stylesheet href=/static/Sites.css
{% include preprepJS.html %}
script type=text/javascript language=javascript src=/static/
sites/sites.nocache.js/script
/head
body
{% include head.html %}
div id=main
{% include sidebar.html %}
div id=content
div id=RTA-wrapper/div
/div
/div

!-- OPTIONAL: include this if you want history support --
iframe src=javascript:'' id=__gwt_historyFrame tabIndex='-1'
style=position:absolute;width:0;height:0;border:0/iframe
/body
/html
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Re: Migrated GWT Netbeans project to GWT 1.6 latest trunk version + oophm -- StackOverflowError

2009-05-15 Thread Soren Johnson


ok, I increased the size to -Xss4096k and now it works. However, the
compile button on the hosted browser doesn't work because I think it
uses the original stack size. Does anyone know how to change that?
thanks...

On May 15, 12:49 pm, Soren Johnson soren.john...@gmail.com wrote:
 what is the default size? does anyone know? (I am having 
 theStackOverflowErroras well...)

 On May 13, 2:49 pm, Jason Essington jason.essing...@gmail.com wrote:

  you could try increasing the jvm stack size with the -Xss switch and  
  see if that doesn't help

  -jason
  On May 13, 2009, at 12:56 PM, stefan asseg wrote:

   hi,

   i am migrating our open source web desktop framework
  http://code.google.com/p/hetras-gwt-framework/to1.6 and it works
   fine with the official 1.6.4 release jars. as we definitely want to
   use oophm, i checked out the latest gwt trunk and built it but when i
   use the built jars including the gwt-dev-oophm.jar i get a
  StackOverflowErrorwhen compiling.
   our project uses a (slightly modified) gwt4nb build file. a newly
   created empty gwt4nb project does work with oophm, though.

   does anybody have the same problem or know what the problem could be?

   i still use com.google.gwt.dev.GWTCompiler instead of the new
   com.google.gwt.dev.Compiler, could that be the problem? compiling the
   project with the official 1.6.4 release jars and the GWTCompiler
   works, though.

   thanks for your help and input in advance.

   kind regards,
   stefan
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Re: No source code is available for type Error on Web Mode Compile


Rajeev,

The update seems to have fixed my issue because I was only using
project B's code on the UI and as parameters of the RPC.

Thanks,
John

On May 15, 3:00 pm, Rajeev Dayal rda...@google.com wrote:
 Hi John,

 What version of the plugin are you currently using? We just released a new
 version of the plugin (1.0.1) a couple of days ago that may fix this
 problem. Here are the release notes:

 http://code.google.com/eclipse/docs/release_notes.html

 Although the problem that you're having is not explicitly mentioned in this
 list, I know that we had some issues with classpath computation for GWT
 Compiles.

 Seehttp://code.google.com/eclipse/docs/updating_the_plugin.htmlfor
 instructions on updating the plugin.

 However, the problem that Alex mentioned above still exists. That is, if you
 have a GWT, App Engine, or GWT + App Engine project (call it project A), and
 that project depends on another project (call it project B), the classes for
 project B are not automatically copied into project A's war directory.

 Now, suppose that project B only has GWT client source in it (no RPC) - then
 the new version of the plugin will handle this case - it will automatically
 pull the dependent project's source folders onto the classpath when
 compiling or running hosted mode.

 If it is the case that project B is using GWT but defines RPC interfaces and
 RPC data objects (which seems to be your case), then you'll have a problem,
 because you'll need the class files from the RPC data objects in project A's
 war directory. So, to make your situation work, I think you'll have to go
 with the workaround of exporting a jar from project B, and adding a
 reference to it on project A's classpath.

 Sorry about the inconvenience; we're planning on fixing this issue in the
 future.

 Rajeev

 On Fri, May 15, 2009 at 2:16 PM, John john.set...@gmail.com wrote:

  Yes,  I have a source path=model/ element.  I think the link in
  Alex's response explains my issue pretty well.

  On May 14, 9:34 pm, Alyxandor a.revolution.ultra.b...@gmail.com
  wrote:
   Does DbPojo.gwt.xml have source path=model/ element in it?  Cos by
   default, gwt looks for source from /path/to/Module.gwt.xml /path/to/
   client.  You use source to change this {just be wary, I haven't done
   this since 1.4, and it was a little buggy about setting the source
   path back to client...

   Cheers!
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Re: how to make gwt eclipse plugin compiler see other projects


Version 1.0.1 released two days ago partially fixes this issue.

Check out Rajeev's post on this thread
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/46cf35719329b30

On May 15, 3:58 pm, John john.set...@gmail.com wrote:
 Tim,

 Jar Method:
 1. Remove any Buid Path references between your two projects.
 2. Build a jar file from your project that is a dependency.  Make sure
 to check the boxes that say Add directory entries and Add Java
 Source
 3. Add this jar file to your main projects build path.
 4. Try to compile GWT.

 On May 15, 2:52 pm, Tim McCormack ti...@ccs.neu.edu wrote:

  On May 15, 2:13 pm, John john.set...@gmail.com wrote:

   I am going to attempt the jar file technique since that is known to
   work.

  I'm encountering the same issue. Can you explain exactly what you are
  doing with the Jar file approach?

   - Tim McCormack
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Re: RPC Issues - Lifespan of Data from a RPC

2009-05-15 Thread JohnofLong


Thank you for your input, what was happening is once the RPC was
complete the data that I was adding to the ArrayList would disappear.
So I decided to do something ugly, but it works. I am writing the data
onto a invisible div on the page then getting it then adding it to the
ArrayList. It seems to work just fine.

I am new to GWT but I am starting to get a basic understanding on how
these things work.

I was wondering if anyone knows of a way to run a function after the
RPC is complete.

Thanks!

John

On May 9, 7:44 am, Salvador Diaz diaz.salva...@gmail.com wrote:
 Well, the indexOutOfBoundsException can't possibly be thrown by the
 method add of an ArrayList (that's the type of productArrayList, isn't
 it?). In fact there's nothing in your snippets that'll throw that
 exception. Did you debug the method call on the server side ?
 Somewhere in your Eclipse or HostedMode console you'll have a complete
 stack trace that'll tell you the exact line of code that's throwing
 that exception. I suggest you read it carefully.

 As for the lifecycle of your RPCs, it is the normal lifecycle of a
 servlet.

 Hope that helps,

 Salvador

 On May 8, 10:46 pm, JohnofLong johnlonganec...@gmail.com wrote:

  I tried to find this topic already on the discussions but could not
  find it.

  Currently using  GWT 1.5.3

  I am making a RPC to call to read XML and call a function that loads
  the data into an ArrayList of classes. I have made a class that
  implements RequestCallback(LoadData) and takes in my mainClass
  example:

  LoadData loadData = new LoadData(this);
                  String url = xmlString;
              RequestBuilder requestBuilder = new RequestBuilder
  (RequestBuilder.GET, url);
              try {
                requestBuilder.sendRequest(null, loadData);
              } catch (RequestException ex) {
                  //Window.alert(exception);
              }

  Inside the RPC class:

  mainClass.addProducts(id, sku, name, catagory) ;

  inside my main class:
  public addProducts(int id, int sku, String name, String catagory) {
          productArrayList.add(new product(id, sku, name, catagory);

  }

  But when I call a method on my productArray it just says index out of
  bound (basically the arrayList is empty) but I know it is calling the
  addProduct method

  I am guessing the lifespan of the data is tied to the lifespan of the
  RPC call.

  What sort of things can I do to get around this(assuming my
  assumptions are correct)?

  I greatly appreciate the help and apologize if this topic is covered
  somewhere already.
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naive 1.6 Web App creator question

2009-05-15 Thread seven.reeds


Hi,

I am *just* trying out 1.6.  I have created a couple of test projects
using the Web App creator thing but i have a question.

I may have to create a project called Foo but the resulting GWT html
items should be named .../index...  The web server is configured to
deal with index.html by default not Foo.html.

Is there a way to use the app creator to name the resulting files
index. whatever?

If not, then what all do I have to change in the default 1.6 project
dir to enable this?  I know to change the projecyName.java file in
the src dirs.  I am less sure about entries in the various xml files
or other configuration settings.
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Re: how to make gwt eclipse plugin compiler see other projects


On May 15, 3:58 pm, John john.set...@gmail.com wrote:
 Jar Method:
 1. Remove any Buid Path references between your two projects.
 2. Build a jar file from your project that is a dependency.  Make sure
 to check the boxes that say Add directory entries and Add Java
 Source
 3. Add this jar file to your main projects build path.
 4. Try to compile GWT.

Thanks for the walkthrough, John, but compile still fails with the
same errors as before:

No source code is available for type com.example.shared.Foo; did you
forget to inherit a required module?

Maybe GWT can only see other GWT projects?

 - Tim McCormack
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Re: Eclipse GWT: How to include source from other projects?


Thanks for the response, Alex.

I've tried those approaches (Jar, shared output folder, including in
run-config classpath), and I always get the same result:

No source code is available for type com.example.shared.Foo; did you
forget to inherit a required module?

 - Tim McCormack
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Re: naive 1.6 Web App creator question

2009-05-15 Thread Alex Rudnick


Hey Seven,

The simplest solution is just to rename the generated HTML file to
index.html, if that's a filename that would work better for you.

If you want to get a little fancier (and you're using a servlet
container like Tomcat or App Engine), then you could look into having
a welcome-file-list element in your web.xml. There's an example of
how to do that in the web.xml that gets generated if you make a new
GWT/App Engine project with the Eclipse plugin.

Hope this helps!

On Fri, May 15, 2009 at 4:52 PM, seven.reeds seven.re...@gmail.com wrote:

 Hi,

 I am *just* trying out 1.6.  I have created a couple of test projects
 using the Web App creator thing but i have a question.

 I may have to create a project called Foo but the resulting GWT html
 items should be named .../index...  The web server is configured to
 deal with index.html by default not Foo.html.

 Is there a way to use the app creator to name the resulting files
 index. whatever?

 If not, then what all do I have to change in the default 1.6 project
 dir to enable this?  I know to change the projecyName.java file in
 the src dirs.  I am less sure about entries in the various xml files
 or other configuration settings.

-- 
Alex Rudnick
swe, gwt, atl

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Re: No source code is available for type Error on Web Mode Compile

Hey Tim,

Can you give me a bit more detail on what you're trying to accomplish? For
example, what code is in the dependent project, and what code is in your
main project? It sounds like there is no GWT-related code in your dependent
project. Does your main project have GWT code?


Thanks,
Rajeev

On Fri, May 15, 2009 at 4:45 PM, Tim McCormack ti...@ccs.neu.edu wrote:


 On May 15, 3:00 pm, Rajeev Dayal rda...@google.com wrote:
  Now, suppose that project B only has GWT client source in it (no RPC) -
 then
  the new version of the plugin will handle this case - it will
 automatically
  pull the dependent project's source folders onto the classpath when
  compiling or running hosted mode.

 What if B is not a GWT project, but instead a regular Java project? I
 can't have it compile into A's output folder, because it won't output
 GWT classes.

 That's the situation I have right now, and I can't seem to get GWT to
 compile with outside libraries. How is it done?

  - Tim McCormack
 


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Re: Eclipse GWT: How to include source from other projects?

Ah, I see on this thread that you've provided more details about your
project in this thread. Disregard my request for more details in the other
thread.

So, it seems that you client project needs access to classes in your
Java-only project (the shared classes). Why is this? Are these classes that
need to be used for GWT RPC?


On Fri, May 15, 2009 at 5:01 PM, Tim McCormack ti...@ccs.neu.edu wrote:


 Thanks for the response, Alex.

 I've tried those approaches (Jar, shared output folder, including in
 run-config classpath), and I always get the same result:

 No source code is available for type com.example.shared.Foo; did you
 forget to inherit a required module?

  - Tim McCormack
 


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Re: No source code is available for type Error on Web Mode Compile


Tim,

In order to get something to work in GWT you have to have the Java
source, and as far as I know you have to put a module file in the same
package hierarchy with a source path='relative.package.path' /
element.  So you may as well make your project B a gwt project without
any entry points anyway.  I think you will find that the path='X'
attribute isn't as flexible as you would like it to be.  For example,
I don't think it supports things like .. for previous package, and
I just tried and failed to get a compile to work with a module that
had path=source in another project or a single module that is
defined in package com.domain.packageA with an element like source
path='com.domain.packageB /

-John


On May 15, 4:45 pm, Tim McCormack ti...@ccs.neu.edu wrote:
 On May 15, 3:00 pm, Rajeev Dayal rda...@google.com wrote:

  Now, suppose that project B only has GWT client source in it (no RPC) - then
  the new version of the plugin will handle this case - it will automatically
  pull the dependent project's source folders onto the classpath when
  compiling or running hosted mode.

 What if B is not a GWT project, but instead a regular Java project? I
 can't have it compile into A's output folder, because it won't output
 GWT classes.

 That's the situation I have right now, and I can't seem to get GWT to
 compile with outside libraries. How is it done?

  - Tim McCormack
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Re: naive 1.6 Web App creator question

2009-05-15 Thread seven.reeds


well, now, that was simpler than I was expecting.  Thanks

I am not doing servlets... yet.

Cheers,
Dean...K...


On May 15, 4:07 pm, Alex Rudnick a...@google.com wrote:
 Hey Seven,

 The simplest solution is just to rename the generated HTML file to
 index.html, if that's a filename that would work better for you.

 If you want to get a little fancier (and you're using a servlet
 container like Tomcat or App Engine), then you could look into having
 a welcome-file-list element in your web.xml. There's an example of
 how to do that in the web.xml that gets generated if you make a new
 GWT/App Engine project with the Eclipse plugin.

 Hope this helps!





 On Fri, May 15, 2009 at 4:52 PM, seven.reeds seven.re...@gmail.com wrote:

  Hi,

  I am *just* trying out 1.6.  I have created a couple of test projects
  using the Web App creator thing but i have a question.

  I may have to create a project called Foo but the resulting GWT html
  items should be named .../index...  The web server is configured to
  deal with index.html by default not Foo.html.

  Is there a way to use the app creator to name the resulting files
  index. whatever?

  If not, then what all do I have to change in the default 1.6 project
  dir to enable this?  I know to change the projecyName.java file in
  the src dirs.  I am less sure about entries in the various xml files
  or other configuration settings.

 --
 Alex Rudnick
 swe, gwt, atl
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Re: @Resource path is OS-gnostic ( \ or / depending on the Win/Linux). What is a workaround?

This would work, except for backwards compatibility. If we put in this
change, then all of those people that were using fully-qualified names
without the leading slash would run into problems. Another way to handle
this might be to add another piece data to the annotation to indicate that
the path is relative as opposed to absolute.

Or, we could maybe go with your suggestion, but then have a fallback
algorithm - if there is no leading slash, assume that the path is relative
to the package. If no resource can be found, assume that it's absolute.

On Fri, May 15, 2009 at 4:11 PM, Igor Moochnick igor.moochn...@gmail.comwrote:


 It does, actually, makes scene.

 If I may, I'd like to suggest the way to fix it. Usually when the path
 starts with / (slash) it considered to be an ABSOLUTE path, but, if
 it does't, it considered to be a RELATIVE one.  So the code can be
 changed like this  [pseudocode]:

if (imgFileName.starts_with(/))
{
// USE THE PATH AS AN ABSOLUTE ONE
}
else
// RELATIVE PATH IN ANY OTHER CASE
 {
  String pkgName = method.getPackageName();
  if (!.equals(pkgName)) {
imgFileName = pkgName.replace('.', '/') + / + imgFileName;
  }
}

   How about this?

 On May 15, 4:03 pm, Rajeev Dayal rda...@google.com wrote:
  Hi Igor,
 
  Responses inline:
 
  On Fri, May 15, 2009 at 3:47 PM, Igor Moochnick 
 igor.moochn...@gmail.comwrote:
 
 
 
   You mean PACKAGE or MODULE?   In fact I do use PACKAGEs.
 
  I mean package.
 
 
 
 
 
   Because I'm actually using packages for my widgets and, in fact,
   that's what broken.
 
   This is how I've structured my code:
 
   com.myserver.client  - all the usual client code
   com.myserver.client.widgets  - here I put our custom widgets
   (and all the images related to them)
   com.myserver.client.widgets.images   - this is where I WANT to put all
   the images so the upper level folder will be free
 
   Since, in Java, packages are directly related to the folder structure,
   the @Resource(images/Dialogue_Corner.gif)  is broken and not working
   consistently across the OSes.
 
  I know that if you use a backslash, that this works on Windows. However,
  have you tested to see if this would work as-is in its current
 formulation
  on Mac or Linux? The reason that I ask is that I suspect it would not.
 Even
  though changing the forward slash to a backslash appears to fix the
 problem
  on windows, it is an accident of the implementation of
 ImageBundleGenerator.
  Here is the relevant chunk of code in ImageBundleGenerator:
 
// If the name has no slashes (that is, it isn't a fully-qualified
  resource
  // name), then prepend the enclosing package name automatically,
 being
  // careful about the default package.
  if (imgFileName.indexOf(/) == -1) {
String pkgName = method.getPackageName();
if (!.equals(pkgName)) {
  imgFileName = pkgName.replace('.', '/') + / + imgFileName;
}
  }
 
  So, you see, the code basically assumes that if there are any forward
  slashes in the image name (where the image name is taken verbatim as the
  value of the resource annotation), then it is assumed to be an absolute
  reference. When you changed the slash to a backslash, the code here
  determined that there were no forward slashes in the resource name, and
  pre-pended the package name to the image file name. So, the fact that a
  relative reference worked was accidental. Does that make sense?
 
 
 
 Thanks.
 
   On May 15, 3:30 pm, Rajeev Dayal rda...@google.com wrote:
You are correct - if you end up refactoring, you'll have to change
 the
references in the @Resource annotation. The only other way around
 this is
   to
place the images themselves in the same package as your ImageBundle,
 and
then you can use relative references.
 
You can file a Request for Enhancement to support relative paths in
ImageBundle @Resource annotatios, if you'd like
 
On Fri, May 15, 2009 at 1:53 PM, Igor Moochnick 
   igor.moochn...@gmail.comwrote:
 
 Interesting ... In fact I was actually trying to use the relative
 path.
 
 The goal was to put the images (part of the application
 ImageBundles)
 with the classes/widgets that are using them and then extra
 /images
 folder (relative to the widget folder).
 
 Then, if I put a full path, what are the best practices in
 refactoring? When I move the whole folder - all the full pathes
 will
 be broken.
 
  Thanks for your responses.
 
 On May 15, 1:45 pm, Rajeev Dayal rda...@google.com wrote:
  Hi Igor,
 
  The problem is that the resource annotation will only understand
   either:
 
  1) A file name relative to the package. This must only be a file
   name,
 not a
  path
  2) A fully qualified path
 
  The problem is that you're using a relative path for the file,
 which
   will
  not work. You have to use the

Re: [ERROR] Not enough arguments (2) passed to external.gwtOnLoad(), expected (3); error

2009-05-15 Thread Sumit Chandel

Hi darkflame,

That error message is certainly a rare find - whatever is causing it is
likely to be one of those edge cases that are hit when there is a full blue
moon and the planets are aligned.

The hosted.html file is typically not generated in the .gwt-tmp dir, but
just in case, could you try deleting that directory to make sure there
aren't any stale files there that might be triggering that error message?

Regarding switching to the new com.google.gwt.dev.HostedMode, you would be
required to change the directory layout for your project to the WAR
convention adopted in GWT 1.6. If you do want to go this route, the process
is fairly straightforward and should be painless. You can check out details
steps to do this in the 1.6 upgrade guide (link below).

GWT 1.6 upgrade guide:
http://code.google.com/webtoolkit/doc/1.6/ReleaseNotes_1_6.html#Upgrading

Hope that helps,
-Sumit Chandel

On Tue, May 12, 2009 at 3:04 AM, darkflame darkfl...@gmail.com wrote:


 I'm getting a;

 [ERROR] Not enough arguments (2) passed to external.gwtOnLoad(),
 expected (3); your hosted mode bootstrap
 file may be out of date; if you are using -noserver try recompiling
 and redeploying your app

 Error in the development shell when I run my project.
 This error has only just appeared despite working on my project for
 weeks without even touching the run or compiling configurations.
 It seems to have appeared after introducing another Frame element,
 sometimes setting the url seems to trigger it but I cant find any
 logic to this error appearing.

 This may be tied to me still using com.google.gwt.dev.GWTShell to
 compile, despite the deprecated warning I get in eclipse. (I'm using
 the default 1.5 directory layout still, changing to
 'com.google.gwt.dev.HostedMode' would mean having to change that
 right?)


 


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Re: JSON, HTTP POST and Django - json contaminated with newlines