Re: Display a list of objects.

[Guillen Antonio]

Hi Graig,
Thanks for your proposal. But even adding the tag @UiFieldI nothing is
displayed.

Reagards
Antonio

Le mer. 3 nov. 2021 à 22:50, Craig Mitchell  a
écrit :

> I'm not familiar with the material UI.  However, I can see you're missing
> the "@UiField" on your ListBox declaration.  ie: It should be:
> @UiField ListBox canBeusedBy;
>
> Then you call just call "addItem" to add some items into the list.  See
> http://samples.gwtproject.org/samples/Showcase/Showcase.html#!CwListBox
> for more detail.
> On Tuesday, 2 November 2021 at 4:41:25 am UTC+11 tonio@gmail.com
> wrote:
>
>> Hi,
>> I've been struggling for days to display a list of objects in an editor
>> using UIBinder.
>>
>> But I can't figure out which class to use and even less how.
>>
>> Here are some code snippets:
>>
>> The UIBinder file
>> 
>> http://dl.google.com/gwt/DTD/xhtml.ent";>
>> > xmlns:ui="urn:ui:com.google.gwt.uibinder"
>> xmlns:m="urn:import:gwt.material.design.client.ui"
>> xmlns:ma="urn:import:gwt.material.design.addins.client"
>>
>> xmlns:combobox="urn:import:gwt.material.design.addins.client.combobox"
>> xmlns:g="urn:import:com.google.gwt.user.client.ui">
>>
>> .widget {
>>margin: 30px;
>>}
>> 
>>
>>   > addStyleNames="{style.widget}">
>> 
>> 
>> 
>> 
>> 
>> > />
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>>   
>> 
>> 
>>
>>
>>
>>
>> The Editor Java file
>>
>> package com.lacen.gwt.spot.client.ui.mvp.editors.generated;
>>  import com.google.gwt.core.client.GWT;
>>  import com.google.gwt.editor.client.Editor;
>>  import com.google.gwt.editor.client.SimpleBeanEditorDriver;
>>  import com.google.gwt.event.dom.client.ClickEvent;
>>  import com.google.gwt.uibinder.client.UiBinder;
>>  import com.google.gwt.uibinder.client.UiField;
>>  import com.google.gwt.uibinder.client.UiHandler;
>>  import com.google.gwt.user.client.ui.Composite;
>>  import com.google.gwt.user.client.ui.Widget;
>>  import com.lacen.event.Event;
>>  import gwt.material.design.client.ui.MaterialPanel;
>>  import com.lacen.gwt.spot.client.ui.mvp.editors.ComboBoxEnum;
>>  import gwt.material.design.client.ui.MaterialDialog;
>>  import gwt.material.design.client.ui.MaterialTextBox;
>>  import com.google.gwt.user.client.ui.ListBox;
>>  import java.util.List;
>>  import com.lacen.gwt.spot.client.ui.mvp.editors.ListValueSpot;
>>  import com.lacen.users.Stakeholder;
>>  import com.lacen.organisation.Action;
>>  /**
>>  * Create an editor to describe a event.
>>  * @author Antonio
>>  */
>>  public class EventEditor extends Composite implements Editor {
>>   /** The Constant driver. */
>>   // Editor driver
>>   private static final EventDriver driver =
>> GWT.create(EventDriver.class);
>>   /**
>>   * The Interface EventDriver.
>>   */
>>   interface EventDriver extends SimpleBeanEditorDriver> EventEditor> {
>>   }
>>   /** The Constant uiBinder. */
>>   // UiBinder and fields
>>   private static final EventEditorUiBinder uiBinder =
>> GWT.create(EventEditorUiBinder.class);
>>   /**
>>   * The Interface EventEditorUiBinder.
>>   */
>>   interface EventEditorUiBinder extends UiBinder
>> {
>>   }
>>   /** The dialog. */
>>   @UiField
>>   MaterialDialog dialog;
>>   /** The name */
>>   @UiField
>>   MaterialTextBox name;
>>   /** The graphID */
>>   @UiField
>>   MaterialTextBox graphID;
>>   /** The eventStatus */
>>   @UiField
>>   MaterialPanel MaterialPanelCombo2;
>>   ComboBoxEnum eventStatus;
>>   /** The relevance */
>>   @UiField
>>   MaterialPanel MaterialPanelCombo3;
>>   ComboBoxEnum relevance;
>>   /** The status */
>>   @UiField
>>   MaterialPanel MaterialPanelCombo4;
>>   ComboBoxEnum status;
>>   /** The detectability */
>>   @UiField
>>   MaterialPanel MaterialPanelCombo5;
>>   ComboBoxEnum detectability;
>>   /** The criticity */
>>   @UiField
>>   MaterialPanel MaterialPanelCombo6;
>>   ComboBoxEnum criticity;
>>   /** The canBeusedBy */
>>   ListBox canBeusedBy;
>>   /** The initial object (Event). */
>>   private Event initialObject;
>>   /**
>>   * Instantiates a new Event editor.
>>   */
>>   public EventEditor() {
>>initWidget(uiBinder.createAndBindUi(this));  Create the UI
>> of the Editor.
>>eventStatus = new
>> ComboBoxEnum("eventStatus",
>> com.lacen.event.HandlingProgress.VALUES);
>>MaterialPanelCombo2.add(eventStatus.getComboBox());
>>relevance = new
>> ComboBoxEnum("relevance",
>> com.lacen.event.Relevance.VALUES);
>>MaterialPanelCombo3.add(relevance.getComboBox());
>>status = new
>> ComboBoxEnum("status",
>> com.lacen.event.StatusEvent

Display a list of objects.

[Guillen Antonio]

Hi, 
I've been struggling for days to display a list of objects in an editor 
using UIBinder.

But I can't figure out which class to use and even less how.

Here are some code snippets:

The UIBinder file

http://dl.google.com/gwt/DTD/xhtml.ent";>

   
.widget {
   margin: 30px;
   }

   
  







 

 

 

 

 







  






The Editor Java file

package com.lacen.gwt.spot.client.ui.mvp.editors.generated;
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.editor.client.Editor;
 import com.google.gwt.editor.client.SimpleBeanEditorDriver;
 import com.google.gwt.event.dom.client.ClickEvent;
 import com.google.gwt.uibinder.client.UiBinder;
 import com.google.gwt.uibinder.client.UiField;
 import com.google.gwt.uibinder.client.UiHandler;
 import com.google.gwt.user.client.ui.Composite;
 import com.google.gwt.user.client.ui.Widget;
 import com.lacen.event.Event;
 import gwt.material.design.client.ui.MaterialPanel;
 import com.lacen.gwt.spot.client.ui.mvp.editors.ComboBoxEnum;
 import gwt.material.design.client.ui.MaterialDialog;
 import gwt.material.design.client.ui.MaterialTextBox;
 import com.google.gwt.user.client.ui.ListBox;
 import java.util.List;
 import com.lacen.gwt.spot.client.ui.mvp.editors.ListValueSpot;
 import com.lacen.users.Stakeholder;
 import com.lacen.organisation.Action;
 /**
 * Create an editor to describe a event.
 * @author Antonio
 */
 public class EventEditor extends Composite implements Editor {
  /** The Constant driver. */
  // Editor driver
  private static final EventDriver driver = 
GWT.create(EventDriver.class);
  /**
  * The Interface EventDriver.
  */
  interface EventDriver extends SimpleBeanEditorDriver {
  }
  /** The Constant uiBinder. */
  // UiBinder and fields
  private static final EventEditorUiBinder uiBinder = 
GWT.create(EventEditorUiBinder.class);
  /**
  * The Interface EventEditorUiBinder.
  */
  interface EventEditorUiBinder extends UiBinder {
  }
  /** The dialog. */
  @UiField
  MaterialDialog dialog;
  /** The name */
  @UiField
  MaterialTextBox name;
  /** The graphID */
  @UiField
  MaterialTextBox graphID;
  /** The eventStatus */
  @UiField
  MaterialPanel MaterialPanelCombo2;
  ComboBoxEnum eventStatus;
  /** The relevance */
  @UiField
  MaterialPanel MaterialPanelCombo3;
  ComboBoxEnum relevance;
  /** The status */
  @UiField
  MaterialPanel MaterialPanelCombo4;
  ComboBoxEnum status;
  /** The detectability */
  @UiField
  MaterialPanel MaterialPanelCombo5;
  ComboBoxEnum detectability;
  /** The criticity */
  @UiField
  MaterialPanel MaterialPanelCombo6;
  ComboBoxEnum criticity;
  /** The canBeusedBy */
  ListBox canBeusedBy;
  /** The initial object (Event). */
  private Event initialObject;
  /**
  * Instantiates a new Event editor.
  */
  public EventEditor() {
   initWidget(uiBinder.createAndBindUi(this));  Create the UI 
of the Editor.
   eventStatus = new 
ComboBoxEnum("eventStatus", 
com.lacen.event.HandlingProgress.VALUES);
   MaterialPanelCombo2.add(eventStatus.getComboBox());
   relevance = new 
ComboBoxEnum("relevance", 
com.lacen.event.Relevance.VALUES);
   MaterialPanelCombo3.add(relevance.getComboBox());
   status = new ComboBoxEnum("status", 
com.lacen.event.StatusEvent.VALUES);
   MaterialPanelCombo4.add(status.getComboBox());
   detectability = new 
ComboBoxEnum("detectability", 
com.lacen.event.Detectability.VALUES);
   MaterialPanelCombo5.add(detectability.getComboBox());
   criticity = new 
ComboBoxEnum("criticity", 
com.lacen.event.Criticality.VALUES);
   MaterialPanelCombo6.add(criticity.getComboBox());
   dialog.open();  Visualize the editor.
  }
  /**
  * Initialize and fill in the editors fields with the Event properties.
  *
  * @param obj the Event.
  */
  public void edit(Event obj) {
   this.initialObject = obj;
   driver.initialize(this);  Initialize the driver
   driver.edit(this.initialObject);  Fill the editor with the 
object
  }
  /**
  * Exit the editor closing the dialog.
  *
  * @param event the event
  */
  @UiHandler("exit")
  public void onExitSelect(ClickEvent event) {
   dialog.close();
  }
 }

In my Event object model, "canBeusedBy" is the name of a "Stakeholder" list 
that 
I want to display in the ListBox.

When I call my editor everything is displayed but not the list?  Here after 
a copy of the editor displayed:
[image: Editor.PNG]

Do you have an idea, a specific example with a list of objects.

Thank you for your help.

Antonio
 

Pb with MaterialListValueBox

[Guillen Antonio]

Hi all,

I need to create an Editor for an object. This object contains an attribute
List canBeUsedBy. I have the method getCanBeUsedBywhich return
the list.

In my Editor java side,I set:
@UIField
MaterialListValueBox> canBeUsedBy;


in my Editor UIBinder side:


How can I do to have the *String *value in the list, because the *Stakeholder
*class just have a method returning a String ans it's that string that I
want in my list: The method is *getName().*

Thanks for your help.

Antonio

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Re: 2/? Pbs with GWT + Eclipse + Jetty + Neo4J

[Guillen Antonio]

HI David,
Thanks a lot for your answer. Your explanations are clear and I think they
will help me a lot. I will work again on my classes ans methods, taking in
account your remarks. I understand much better what happen and I understand
why few weeks ago it was working and now no more: Because I have tried to
generalize a lot of stuffs and for this I modify the way to do all the RPC,
before it was much simplier.   I will work on it tomorrow.
Thanks again for your help.

Antonio

Le mer. 13 oct. 2021 à 15:05, David Nouls  a écrit :

> Hi Antonio,
>
> The “load”method that you showed in the code snippet starts the invocation
> of an RPC method on the spotDataService.
> But the AsyncResponse object that you provide in the loadDataServer will
> only get invoked after the method already returned.
>
> Any async operation that you do is not executed right away. A request is
> sent by the browser to your server (as you see in the server logs), but the
> loadDataServer method in the browser returns immediately, it does not wait
> for the response. So the provided callback is not yet called when the
> method returns. As a result, the load method will return the current value
> of objectRet (probably null or an old value).
>
> Afterwards when the response is received from the server, the callback
> method gets invoked to handle the success or failure in the browser (so
> that is why I said that this Class.forName will not work … the callback
> code runs in the browser, not the server).
>
> So in the end you will probably see the Window.alert statements getting
> executed, but not when you expect it.
>
> From the code + logs that you have given us I don’t know if you get a
> success or failure since you did not provide the information you are
> showing in the window.alert invocations (which, if I recollect that
> correctly, will popup some modal dialogs in the browser).
> On 13 Oct 2021, 14:20 +0200, Guillen Antonio ,
> wrote:
>
> Hi David,
>
> Thanks a lot for your remarks, but I need some explanation, as tell in my
> message i am bot confortable with http/server/remote, 
>
> 1. You say: *The most important being that you are ignoring the fact that
> an rpc call is asynchronous. So the load method will ralways return null
> because the request has not been executed when the method returns.*
> *   But it's always that is describe in all the examples of GWT. And the
> request is yet execute on the return method, as is shown here after:*
> 
> 2.You say: *Another problem is the fact that the async is returning
> List*
> *But I have the same problem if I return a List and if i
> set no more Class.forName but CartographyImpl*
> *3. see above.*
>
> So can you give me more informations...
>
> Thanks a lot for your help
>
> Antonio
>
>
>
> Le mer. 13 oct. 2021 à 12:03, David Nouls  a
> écrit :
>
>>
>> I see multiple problems with your code. The most important being that you
>> are ignoring the fact that an rpc call is asynchronous. So the load method
>> will ralways return null because the request has not been executed when the
>> method returns.
>>
>> Another problem is the fact that the async is returning List,
>> which would mean gwt needs to generate serializers for all object types in
>> you application at compile time.
>>
>> Another one is that you seem to want to use java introspection to
>> dynamically load classes in GWT, which is not supported (Class.forName).
>> On 13 Oct 2021, 09:58 +0200, Guillen Antonio ,
>> wrote:
>>
>> HI all,
>>
>> I am not comfortable with client-server and RPC and HTTPServlet operation
>> at all.
>> I get the following message after my request:
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> *200 - POST /spotgwt/spotData (127.0.0.1) 496 bytesRequest headers
>> Host: 127.0.0.1:8887 <http://127.0.0.1:8887>   User-Agent:
>> Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101
>> Firefox/92.0   Accept: */*   Accept-Language:
>> fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3   Accept-Encoding: gzip, deflate
>> Content-Type: text/x-gwt-rpc; charset=utf-8   X-GWT-Permutation:
>> A082E84D087467DED16699006D694A7B   X-GWT-Module-Base:
>> http://127.0.0.1:8887/spotgwt/ <http://127.0.0.1:8887/spotgwt/>
>> Content-Length: 228   Origin: http://127.0.0.1:8887
>> <http://127.0.0.1:8887>   DNT: 1   Connection: keep-alive
>> Referer: http://127.0.0.1:8887/SpotGWT.html
>> <http://127.0.0.1:8887/SpotGW

Re: 2/? Pbs with GWT + Eclipse + Jetty + Neo4J

[Guillen Antonio]

Hi David,

For your last remark:

*Another one is that you seem to want to use java introspection to
dynamically load classes in GWT, which is not supported (Class.forName). *
I think it's not a pb because this part is executed on the server side and
all Java in this case is available.

Thanks for your help
Antonio



Le mer. 13 oct. 2021 à 12:03, David Nouls  a écrit :

>
> I see multiple problems with your code. The most important being that you
> are ignoring the fact that an rpc call is asynchronous. So the load method
> will ralways return null because the request has not been executed when the
> method returns.
>
> Another problem is the fact that the async is returning List,
> which would mean gwt needs to generate serializers for all object types in
> you application at compile time.
>
> Another one is that you seem to want to use java introspection to
> dynamically load classes in GWT, which is not supported (Class.forName).
> On 13 Oct 2021, 09:58 +0200, Guillen Antonio ,
> wrote:
>
> HI all,
>
> I am not comfortable with client-server and RPC and HTTPServlet operation
> at all.
> I get the following message after my request:
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> *200 - POST /spotgwt/spotData (127.0.0.1) 496 bytesRequest headers
>   Host: 127.0.0.1:8887 <http://127.0.0.1:8887>   User-Agent:
> Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101
> Firefox/92.0   Accept: */*   Accept-Language:
> fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3   Accept-Encoding: gzip, deflate
> Content-Type: text/x-gwt-rpc; charset=utf-8   X-GWT-Permutation:
> A082E84D087467DED16699006D694A7B   X-GWT-Module-Base:
> http://127.0.0.1:8887/spotgwt/ <http://127.0.0.1:8887/spotgwt/>
> Content-Length: 228   Origin: http://127.0.0.1:8887
> <http://127.0.0.1:8887>   DNT: 1   Connection: keep-alive
> Referer: http://127.0.0.1:8887/SpotGWT.html
> <http://127.0.0.1:8887/SpotGWT.html>   Sec-Fetch-Dest: empty
> Sec-Fetch-Mode: cors   Sec-Fetch-Site: same-originResponse headers
>   Date: Wed, 13 Oct 2021 07:40:08 GMT   Content-Encoding: gzip
>   Content-Length: 496   Content-Type: application/json; charset=utf-8
> Content-Disposition: attachment*
>
> Can you tell me what this means. Because at first glance I understand that
> my request is successful, and  the content of the response is in a zip and
> that the length of the zip is 496 bytes in json format. Attachment ?
>
> The problem is that my RPC call tells me that it has failed in the
> following piece of code:
>
>
> 
> I look forward to your reply.
> Thanks a lot for your help
> Antonio
>
> --
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> .
>
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Re: 2/? Pbs with GWT + Eclipse + Jetty + Neo4J

[Guillen Antonio]

Hi David,

Thanks a lot for your remarks, but I need some explanation, as tell in my
message i am bot confortable with http/server/remote, 

1. You say: *The most important being that you are ignoring the fact that
an rpc call is asynchronous. So the load method will ralways return null
because the request has not been executed when the method returns. *
*   But it's always that is describe in all the examples of GWT. And the
request is yet execute on the return method, as is shown here after:*
[image: image.png]
2.You say: *Another problem is the fact that the async is returning
List*
*But I have the same problem if I return a List and if i
set no more Class.forName but CartographyImpl*
*3. see above.*

So can you give me more informations...

Thanks a lot for your help

Antonio



Le mer. 13 oct. 2021 à 12:03, David Nouls  a écrit :

>
> I see multiple problems with your code. The most important being that you
> are ignoring the fact that an rpc call is asynchronous. So the load method
> will ralways return null because the request has not been executed when the
> method returns.
>
> Another problem is the fact that the async is returning List,
> which would mean gwt needs to generate serializers for all object types in
> you application at compile time.
>
> Another one is that you seem to want to use java introspection to
> dynamically load classes in GWT, which is not supported (Class.forName).
> On 13 Oct 2021, 09:58 +0200, Guillen Antonio ,
> wrote:
>
> HI all,
>
> I am not comfortable with client-server and RPC and HTTPServlet operation
> at all.
> I get the following message after my request:
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> *200 - POST /spotgwt/spotData (127.0.0.1) 496 bytesRequest headers
>   Host: 127.0.0.1:8887 <http://127.0.0.1:8887>   User-Agent:
> Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101
> Firefox/92.0   Accept: */*   Accept-Language:
> fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3   Accept-Encoding: gzip, deflate
> Content-Type: text/x-gwt-rpc; charset=utf-8   X-GWT-Permutation:
> A082E84D087467DED16699006D694A7B   X-GWT-Module-Base:
> http://127.0.0.1:8887/spotgwt/ <http://127.0.0.1:8887/spotgwt/>
> Content-Length: 228   Origin: http://127.0.0.1:8887
> <http://127.0.0.1:8887>   DNT: 1   Connection: keep-alive
> Referer: http://127.0.0.1:8887/SpotGWT.html
> <http://127.0.0.1:8887/SpotGWT.html>   Sec-Fetch-Dest: empty
> Sec-Fetch-Mode: cors   Sec-Fetch-Site: same-originResponse headers
>   Date: Wed, 13 Oct 2021 07:40:08 GMT   Content-Encoding: gzip
>   Content-Length: 496   Content-Type: application/json; charset=utf-8
> Content-Disposition: attachment*
>
> Can you tell me what this means. Because at first glance I understand that
> my request is successful, and  the content of the response is in a zip and
> that the length of the zip is 496 bytes in json format. Attachment ?
>
> The problem is that my RPC call tells me that it has failed in the
> following piece of code:
>
>
> 
> I look forward to your reply.
> Thanks a lot for your help
> Antonio
>
> --
> You received this message because you are subscribed to the Google Groups
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> To unsubscribe from this group and stop receiving emails from it, send an
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> <https://groups.google.com/d/msgid/google-web-toolkit/CAKULUq_jF_Z96s43u_Gm7Z6omqU6H7fQ8758DmTX8yavu1mBMg%40mail.gmail.com?utm_medium=email&utm_source=footer>
> .
>
> --
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> To view this discussion on the web visit
> https://groups.google.com/d/msgid/google-web-toolkit/48970e18-bc80-4df0-b8d7-84adde1c63cb%40Spark
> <https://groups.google.com/d/msgid/google-web-toolkit/48970e18-bc80-4df0-b8d7-84adde1c63cb%40Spark?utm_medium=email&utm_source=footer>
> .
>

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2/? Pbs with GWT + Eclipse + Jetty + Neo4J

[Guillen Antonio]

HI all,

I am not comfortable with client-server and RPC and HTTPServlet operation
at all.
I get the following message after my request:
























*200 - POST /spotgwt/spotData (127.0.0.1) 496 bytes   Request headers
Host: 127.0.0.1:8887   User-Agent: Mozilla/5.0
(Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0
Accept: */*  Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate  Content-Type: text/x-gwt-rpc;
charset=utf-8  X-GWT-Permutation: A082E84D087467DED16699006D694A7B
X-GWT-Module-Base: http://127.0.0.1:8887/spotgwt/
  Content-Length: 228  Origin:
http://127.0.0.1:8887   DNT: 1  Connection:
keep-alive  Referer: http://127.0.0.1:8887/SpotGWT.html
  Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors  Sec-Fetch-Site: same-origin   Response headers
  Date: Wed, 13 Oct 2021 07:40:08 GMT  Content-Encoding: gzip
Content-Length: 496  Content-Type: application/json; charset=utf-8
Content-Disposition: attachment*

Can you tell me what this means. Because at first glance I understand that
my request is successful, and  the content of the response is in a zip and
that the length of the zip is 496 bytes in json format. Attachment ?

The problem is that my RPC call tells me that it has failed in the
following piece of code:


[image: image.png]
I look forward to your reply.
Thanks a lot for your help
Antonio

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Pbs with GWT + Eclipse + Jetty + Neo4J

[Guillen Antonio]

Hi all,

I am struggling with a pb using RPC: 

When I use the service to create and store my objects in my DB (Neo4J) 
using remote service, all is Fine.
When I try to load my objects all is ok in my service class and in Neo4J as 
well. But at the last line of the method public static void 
writeResponse(ServletContext servletContext,  HttpServletResponse response, 
String responseContent, boolean gzipResponse)  throws IOException { 

I have an exception. 

Here is the method of com.google.gwt.user.server.rpc.RPCServletUtils


  public static void writeResponse(ServletContext servletContext,
  HttpServletResponse response, String responseContent, boolean 
gzipResponse)
  throws IOException {

byte[] responseBytes = responseContent.getBytes(CHARSET_UTF8);
if (gzipResponse) {
  // Compress the reply and adjust headers.
  //
  ByteArrayOutputStream output = null;
  GZIPOutputStream gzipOutputStream = null;
  Throwable caught = null;
  try {
output = new ByteArrayOutputStream(responseBytes.length);
gzipOutputStream = new GZIPOutputStream(output);
gzipOutputStream.write(responseBytes);
gzipOutputStream.finish();
gzipOutputStream.flush();
setGzipEncodingHeader(response);
responseBytes = output.toByteArray();
  } catch (IOException e) {
caught = e;
  } finally {
if (null != gzipOutputStream) {
  gzipOutputStream.close();
}
if (null != output) {
  output.close();
}
  }

  if (caught != null) {
servletContext.log("Unable to compress response", caught);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
  }
}

// Send the reply.
//
response.setContentLength(responseBytes.length);
response.setContentType(CONTENT_TYPE_APPLICATION_JSON_UTF8);
response.setStatus(HttpServletResponse.SC_OK);
response.setHeader(CONTENT_DISPOSITION, ATTACHMENT);
*response.getOutputStream().write(responseBytes);*
  }

And the return message on my console is:

200 - POST /spotgwt/spotData (127.0.0.1) 501 bytes
   Request headers
  Host: 127.0.0.1:8887
  User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) 
Gecko/20100101 Firefox/92.0
  Accept: */*
  Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
  Accept-Encoding: gzip, deflate
  Content-Type: text/x-gwt-rpc; charset=utf-8
  X-GWT-Permutation: A082E84D087467DED16699006D694A7B
  X-GWT-Module-Base: http://127.0.0.1:8887/spotgwt/
  Content-Length: 228
  Origin: http://127.0.0.1:8887
  DNT: 1
  Connection: keep-alive
  Referer: http://127.0.0.1:8887/SpotGWT.html
  Sec-Fetch-Dest: empty
  Sec-Fetch-Mode: cors
  Sec-Fetch-Site: same-origin
   Response headers
  Date: Tue, 12 Oct 2021 16:57:51 GMT
  Content-Encoding: gzip
  Content-Length: 501
  Content-Type: application/json; charset=utf-8
  Content-Disposition: attachment

Can you help me.

Thanks a lot 

Antonio

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GWT 2.8 EMF and CouchDB

[Guillen Antonio]

Hi all,

I am using GWT 2.8 with Eclipse IDE and EMF. I use also the library EMFJSON 
for GWT.
I want using Http (and not RPC) write documents in CouchDB.
I am looking for a Java library to process the get post,  but i 
dont'found it, can you help me?

Thanks a lot

Antonio

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GWT + EMF + JSON

[Guillen Antonio]

Hi all,
I am using GWT with EMF and I want write files on client side containing 
description of some EMF object with the JSON format. For this purpose I use 
EMFJson tool  (https://emfjson.github.io/) with the following code but I 
can't write the file,. Have you an idea?

Here is the code:

// As of here we preparing to save the model content
ResourceSet resSet = new ResourceSetImpl();
// Register the XMI resource factory for the * extension
resSet.getPackageRegistry()
.put(EcorePackage.eNS_URI,EcorePackage.eINSTANCE);

resSet.getResourceFactoryRegistry()
.getExtensionToFactoryMap()
.put("*", new JsonResourceFactory());

// Obtain a new resource set

resSet.getURIConverter().getURIHandlers().add(new 
LocalStorageHandler());

// create a resource
URI uri = URI.createURI("file:///" + "D:/Spottest.json");
GWT.log(uri.toString());
Resource resource = resSet.createResource(uri);
// Get the first model element and cast it to the right type,
// everything is hierarchical included in this first node
resource.getContents().add(custom);

// now save the content.
// resource.save(Collections.EMPTY_MAP);
try {
resource.save(Collections.EMPTY_MAP);
} catch (Exception e) {
GWT.log("Pb saved " + e.getMessage());
}

Thanks a lot for your help.

Antonio

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Re: Share Header, Footer, ... in different views with UIBinder

[Guillen Antonio]

Thnaks a lot Frank,

I read and test and use your Nalu example. Very nice and interesting job. I
start to implement it in my project, but I change my mind because I
discover MaterialDesign and using the MaterialContainer where I can put
after clear all of my views it's much more simple I think.

Thanks a lot.

Antonio

Le jeu. 8 oct. 2020 à 22:07, Frank Hossfeld  a
écrit :

> There is a project generator, that generates a Nalu project. The generated
> project has a header, footer, navigation and content area.The content area
> will change when clicking a navigation item. It works in the same way as
> the way, Thomas mentioned, but is based on Nalu instead of Activities and
> Places. Nalu is a routing based framework to create applications. It uses
> the same patterns but in a different implementation. May be it helps to
> learn it.
>
> http://www.mvp4g.org/boot-starter-nalu/BootStarterNalu.html
>
> ATM there is a bug inside the generator, if you select Domino-UI.
> Domino-UI updates a method name and I did not update the generator. (will
> do it during as soon as I have some free time)
> You need to replace 'setLeftAddon' with 'addLeftAddOn'.
>
>
> tonio@gmail.com schrieb am Donnerstag, 8. Oktober 2020 um 18:49:10
> UTC+2:
>
>> Thanks a lot Thomas,
>>
>> II have already read the pages you propose, but maybe I have some gaps
>> because I really don't understand the system.  A concrete example with the
>> code would surely help me. Is there an example of how to do this? I guess
>> it already exists but I can't find it after several hours of searching.
>> Thank you very much for your help
>> Le jeudi 8 octobre 2020 à 16:35:06 UTC+2, t.br...@gmail.com a écrit :
>>
>>> If *all* your "views" share the same header/footer/nav, then they
>>> should be part of your "shell", with your ActivityManager only managing the
>>> "main" part of the screen.
>>> See https://blog.ltgt.net/gwt-21-activities/ and
>>> https://blog.ltgt.net/gwt-21-activities-nesting-yagni/ (wow, 10 years
>>> old!)
>>>
>>>
>>> On Thursday, October 8, 2020 at 2:39:50 PM UTC+2, Guillen Antonio wrote:
>>>>
>>>> Hi all,
>>>>
>>>> I am still learning GWT and now I want to build views using
>>>> materialdesign  (with MVP and activity/places)  sharing the same header,
>>>> footer and side navigation. I don't found examples or tutorial to do this
>>>> and I have no idea how to do.
>>>>
>>>> Thanks for your help
>>>>
>>>> Antonio
>>>>
>>> --
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> .
>

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Re: Share Header, Footer, ... in different views with UIBinder

[Guillen Antonio]

Thanks a lot Thomas,

II have already read the pages you propose, but maybe I have some gaps 
because I really don't understand the system.  A concrete example with the 
code would surely help me. Is there an example of how to do this? I guess 
it already exists but I can't find it after several hours of searching. 
Thank you very much for your help
Le jeudi 8 octobre 2020 à 16:35:06 UTC+2, t.br...@gmail.com a écrit :

> If *all* your "views" share the same header/footer/nav, then they should 
> be part of your "shell", with your ActivityManager only managing the "main" 
> part of the screen.
> See https://blog.ltgt.net/gwt-21-activities/ and 
> https://blog.ltgt.net/gwt-21-activities-nesting-yagni/ (wow, 10 years 
> old!)
>
>
> On Thursday, October 8, 2020 at 2:39:50 PM UTC+2, Guillen Antonio wrote:
>>
>> Hi all,
>>
>> I am still learning GWT and now I want to build views using 
>> materialdesign  (with MVP and activity/places)  sharing the same header, 
>> footer and side navigation. I don't found examples or tutorial to do this 
>> and I have no idea how to do.
>>
>> Thanks for your help
>>
>> Antonio
>>
>

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Share Header, Footer, ... in different views with UIBinder

[Guillen Antonio]

Hi all,

I am still learning GWT and now I want to build views using materialdesign  
(with MVP and activity/places)  sharing the same header, footer and side 
navigation. I don't found examples or tutorial to do this and I have no 
idea how to do.

Thanks for your help

Antonio

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Generate skeleton for activities and places

[Guillen Antonio]

HI,

I am looking for a plugin or equivalent that can generate the skeletons for 
activities and places, some thing equivalent to GWTP? Have you informations 
on this?

Thanks a lot

Antonio

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Re: A Short Intro Article to JsInterop "Native"

[Guillen Antonio]

Hi all,
I am looking for a way to add the html page containing my GoJs functions in
a Panel widget how can i do this?
Examples?
Thanks a lot

Le mar. 15 sept. 2020 à 09:43, lofid...@gmail.com  a
écrit :

> Thanks for the comment!
>
> Before you create manually the JsInterop files from GoJS, you should take
> a look the two JsInterop Generators available which I've shown in my new
> article
>
> *"Using IndexedDB in Web Browser — All in Java with Mrs. Gwitany and Dr.
> Jackl"  *
> http://bit.ly/GWTJ2CLIndexedDB
>
> Thanks,
> Lofi
> tonio@gmail.com schrieb am Sonntag, 13. September 2020 um 10:28:54
> UTC+2:
>
>> Thanks for this article, I come from Java and C++ world and I am using
>> GWT for first time. I need to use GoJS in my architecture and I think that
>> your post will help me. Very good explanation.
>> Antonio
>>
>> Le mer. 9 sept. 2020 à 16:59, lofid...@gmail.com  a
>> écrit :
>>
>>> Hi All,
>>>
>>> I wrote a short introduction for JsInterop "native" with a simple
>>> Calculator and CalculatorService:
>>> https://bit.ly/WebBrowserGWTJsInteropNative
>>>
>>> Enjoy 😊
>>>
>>> Lofi
>>>
>>> --
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>>> an email to google-web-tool...@googlegroups.com.
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>>> https://groups.google.com/d/msgid/google-web-toolkit/89b888b5-0f6d-4c5f-8bfe-f5a9a4471f94n%40googlegroups.com
>>> 
>>> .
>>>
>> --
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> 
> .
>

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Re: A Short Intro Article to JsInterop "Native"

[Guillen Antonio]

Thanks for this article, I come from Java and C++ world and I am using GWT
for first time. I need to use GoJS in my architecture and I think that your
post will help me. Very good explanation.
Antonio

Le mer. 9 sept. 2020 à 16:59, lofid...@gmail.com  a
écrit :

> Hi All,
>
> I wrote a short introduction for JsInterop "native" with a simple
> Calculator and CalculatorService:
> https://bit.ly/WebBrowserGWTJsInteropNative
>
> Enjoy 😊
>
> Lofi
>
> --
> You received this message because you are subscribed to the Google Groups
> "GWT Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to google-web-toolkit+unsubscr...@googlegroups.com.
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> https://groups.google.com/d/msgid/google-web-toolkit/89b888b5-0f6d-4c5f-8bfe-f5a9a4471f94n%40googlegroups.com
> 
> .
>

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Re: EMF with GWT and serialize problems

[Guillen Antonio]

HI Jens,

Thanks for your help. I don't understand this sentence " *Also if you do 
not transfer RequirementImpl directly but instead an interface that 
RequirementImpl implements, then GWT Compiler needs to see the class+source 
of RequirementImpl so it can treat RequirementImpl as a possible concrete 
type that might be transferred. " *What do you understand?
I had also read stuff on whiteList but I don't understand what means this 
WhiteList? Do you know this?

Regards
Antonio

Le mercredi 26 août 2020 à 09:29:33 UTC+2, Jens a écrit :

> RequirementImpl must implement serializable, needs to have a default 
> constructor (visibility does not matter), no final fields and there must be 
> at least one serializable type found for each field that can be assigned to 
> that field (which must meet the same requirements). Also if you do not 
> transfer RequirementImpl directly but instead an interface that 
> RequirementImpl implements, then GWT Compiler needs to see the class+source 
> of RequirementImpl so it can treat RequirementImpl as a possible concrete 
> type that might be transferred. 
>
> Have you double checked these requirements? 
>
> -- J.
>
>
> Am Dienstag, 25. August 2020 17:11:53 UTC+2 schrieb Guillen Antonio:
>>
>> HI all,
>>
>> I use GWT 2.81 and EMF (Eclipse Modeling Framework) when i want send from 
>> the server to the client an object of my model, I obtain this final error:
>> com.google.gwt.user.client.rpc.SerializationException: Type 
>> 'com.lacen.organisation.impl.RequirementImpl' was not included in the set 
>> of types which can be serialized by this SerializationPolicy or its Class 
>> object could not be loaded. For security purposes, this type will not be 
>> serialized.: instance = 
>> com.lacen.organisation.impl.RequirementImpl@2fa144e7 (name: Fkygrdphgf)
>>
>> I have tried to understand how to use serializationWhitelist but I have 
>> no clear example.  The class RequirementImpl contains List, so I tried to 
>> create ArrayList with the good type, but same pb.
>>
>> Can you help me, at least give me where found a claer explanation. 
>>
>> Tanks a lot 
>> Antonio Guillen
>>
>

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EMF with GWT and serialize problems

[Guillen Antonio]

HI all,

I use GWT 2.81 and EMF (Eclipse Modeling Framework) when i want send from 
the server to the client an object of my model, I obtain this final error:
com.google.gwt.user.client.rpc.SerializationException: Type 
'com.lacen.organisation.impl.RequirementImpl' was not included in the set 
of types which can be serialized by this SerializationPolicy or its Class 
object could not be loaded. For security purposes, this type will not be 
serialized.: instance = 
com.lacen.organisation.impl.RequirementImpl@2fa144e7 (name: Fkygrdphgf)

I have tried to understand how to use serializationWhitelist but I have no 
clear example.  The class RequirementImpl contains List, so I tried to 
create ArrayList with the good type, but same pb.

Can you help me, at least give me where found a claer explanation. 

Tanks a lot 
Antonio Guillen

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Re: Pbs with Debug GWT application with Eclipse

[Guillen Antonio]

Thanks a lot for your Help
Antonio
Le mardi 25 août 2020 à 12:06:31 UTC+2, t.br...@gmail.com a écrit :

>
>
> On Monday, August 24, 2020 at 7:50:40 PM UTC+2, Guillen Antonio wrote:
>>
>> Hi all
>> I use the last 2020-06 version of eclipse, with the modelling tools 
>> (EMF), I use the Eclipse plugin define in the picture below.The application 
>> work fine, but just for the fun if I want try to debug it:
>>
>>1. I select break points, in the moduleLoad method.
>>2. I launch using Debug AS  Devlopment mode with Jetty
>>
>> The appli run like is I lauch it wit(h Run As  Devlopment mode with Jetty.
>>
>> I don't understand where I do a mistake.
>>
>
> "Debug as…" will allow you to set breakpoints in your server code.
>
> For client code, see 
> https://gwt-plugins.github.io/documentation/gwt-eclipse-plugin/debugging/Debugging.html
>  and 
> https://gwt-plugins.github.io/documentation/gwt-eclipse-plugin/debugging/JavascriptDebugger.html
>

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Pbs with Debug GWT application with Eclipse

[Guillen Antonio]

Hi all
I use the last 2020-06 version of eclipse, with the modelling tools (EMF), 
I use the Eclipse plugin define in the picture below.The application work 
fine, but just for the fun if I want try to debug it:

   1. I select break points, in the moduleLoad method.
   2. I launch using Debug AS  Devlopment mode with Jetty

The appli run like is I lauch it wit(h Run As  Devlopment mode with Jetty.

I don't understand where I do a mistake.
Can you help me please.

Antonio


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