Re: tapestry-simple Archetype
Hello, this is my console output C:\Documents and Settings\Borut\Desktop\work>mvn archetype:create -DarchetypeGroupId=org.apache.tapestry -DarchetypeArti factId=tapestry-simple -DarchetypeVersion=5.0.1 -DgroupId=org.example-DartifactId=myapp -DpackageName= org.example.myapp -Dversion=1.0.0-SNAPSHOT [INFO] Scanning for projects... [INFO] Searching repository for plugin with prefix: 'archetype'. [INFO] [INFO] Building Maven Default Project [INFO]task-segment: [archetype:create] (aggregator-style) [INFO] [INFO] Setting property: classpath.resource.loader.class => ' org.codehaus.plexus.velocity.ContextClassLoaderResourceLoad er'. [INFO] Setting property: resource.loader => 'classpath'. [INFO] ** [INFO] Starting Jakarta Velocity v1.4 [INFO] RuntimeInstance initializing. [INFO] Default Properties File: org\apache\velocity\runtime\defaults\velocity.properties [INFO] Default ResourceManager initializing. (class org.apache.velocity.runtime.resource.ResourceManagerImpl) [INFO] Resource Loader Instantiated: org.codehaus.plexus.velocity.ContextClassLoaderResourceLoader [INFO] ClasspathResourceLoader : initialization starting. [INFO] ClasspathResourceLoader : initialization complete. [INFO] ResourceCache : initialized. (class org.apache.velocity.runtime.resource.ResourceCacheImpl) [INFO] Default ResourceManager initialization complete. [INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Literal [INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Macro [INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Parse [INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Include [INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Foreach [INFO] Created: 20 parsers. [INFO] Velocimacro : initialization starting. [INFO] Velocimacro : adding VMs from VM library template : VM_global_library.vm [ERROR] ResourceManager : unable to find resource 'VM_global_library.vm' in any resource loader. [INFO] Velocimacro : error using VM library template VM_global_library.vm : org.apache.velocity.exception.ResourceNotFo undException: Unable to find resource 'VM_global_library.vm' [INFO] Velocimacro : VM library template macro registration complete. [INFO] Velocimacro : allowInline = true : VMs can be defined inline in templates [INFO] Velocimacro : allowInlineToOverride = false : VMs defined inline may NOT replace previous VM definitions [INFO] Velocimacro : allowInlineLocal = false : VMs defined inline will be global in scope if allowed. [INFO] Velocimacro : messages on : VM system will output logging messages [INFO] Velocimacro : autoload off : VM system will not automatically reload global library macros [INFO] Velocimacro : initialization complete. [INFO] Velocity successfully started. [INFO] [archetype:create] [INFO] [INFO] Using following parameters for creating Archetype: tapestry-simple: 5.0.1 [INFO] [INFO] Parameter: groupId, Value: org.example [INFO] Parameter: outputDirectory, Value: C:\Documents and Settings\Borut\Desktop\work\myapp [INFO] Parameter: packageName, Value: org.example.myapp [INFO] Parameter: package, Value: org.example.myapp [INFO] Parameter: version, Value: 1.0.0-SNAPSHOT [INFO] Parameter: artifactId, Value: myapp [INFO] ResourceManager : found archetype-resources/pom.xml with loader org.codehaus.plexus.velocity.ContextClassLoaderRe sourceLoader [INFO] * End of debug info from resources from generated POM *** [INFO] ResourceManager : found archetype-resources/src/main/java/pages/Start.java with loader org.codehaus.plexus.veloci ty.ContextClassLoaderResourceLoader [INFO] ResourceManager : found archetype-resources/src/main/java/services/AppModule.java with loader org.codehaus.plexus .velocity.ContextClassLoaderResourceLoader [INFO] ResourceManager : found archetype-resources/.classpath with loader org.codehaus.plexus.velocity.ContextClassLoade rResourceLoader [INFO] ResourceManager : found archetype-resources/.project with loader org.codehaus.plexus.velocity.ContextClassLoaderR esourceLoader [INFO] ResourceManager : found archetype-resources/src/main/webapp/index.html with loader org.codehaus.plexus.velocity.C ontextClassLoaderResourceLoader [INFO] ResourceManager : found archetype-resources/src/main/webapp/WEB-INF/web.xml with loader org.codehaus.plexus.veloc ity.ContextClassLoaderResourceLoader [INFO] ResourceManager : found archetype-resources/src/main/webapp/WEB-INF/Start.html with loader org.codehaus.plexus.ve locity.ContextClassLoaderResourceLoader [WARNING] org.apache.velocity.runtime.exception.ReferenceException: ref
Request character encoding
Dear all
I'm developing a system with multi-languages using
Tapestry 4.0. Checked with official web, default http
request would be UTF-8 but I found some problem when
Simplified Chinese input. All the data changed into
???. Below are my coding and configuration.
application file:
meta key="org.apache.tapestry.messages-encoding"
value="UTF-8"/>
meta key="org.apache.tapestry.messages-encoding_zh_TW"
value="Big5"/>
meta key="org.apache.tapestry.messages-encoding_zh_CN"
value="UTF-8"/>
meta key="org.apache.tapestry.output-encoding"
value="UTF-8"/>
meta key="org.apache.tapestry.template-encoding"
value="UTF-8"/>
meta key="org.apache.tapestry.page-class-packages"
value="com.hket.etbcsurvey.page"/>
page file:
component id="_validField_chnName" type="TextField">
binding name="value" value="chnName"/>
/component>
java file:
chnName = new
String(getChnName().getBytes("ISO-8859-1"),"UTF-8");
Any help would be appreciate, thanks.
regards
wayne
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Re: T5 BeanEditForm screencast
Very good design ... Howard Lewis Ship napsal(a): > The code that builds up the field validation is pluggable; originally > I was thinking in terms of Hibernate/EJB3 annotations, but it should > be reasonble to handle all kinds of approaches. This part of the code > and design is still very alpha (in flux). > > On 2/21/07, Jiri Mares <[EMAIL PROTECTED]> wrote: >> >> Hi Howard, >> >> T5 looks very good. I would like to ask about the screencast #4 where >> you presented BeanEditForm component. For >> validation there is the annotation, which causes me problems. >> >> I don't want to annotade my business objects with tapestry annotation >> (they start to depend on tapestry). At the moment >> we are using OVal (oval.sf.net) for the Design by Contract and the >> oval annotations carry the same information as the >> tapestry validate annotation. >> >> So will it be easy to use for validation these annotations (instead of >> the tapestry one)? Meaning if you are thinking >> about some kind of pluggable validation framework ... or at least >> pluggable validation definition framework. >> >> Thanks >> >> -- >> Jiří Mareš (mailto:[EMAIL PROTECTED]) >> ČSAD SVT Praha, s.r.o. (http://www.svt.cz) >> Czech Republic >> >> - >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > -- Jiří Mareš (mailto:[EMAIL PROTECTED]) ČSAD SVT Praha, s.r.o. (http://www.svt.cz) Czech Republic - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with Number Translator in Tapestry 4.1.2 Snapshot
I've just updated an app from 4.0.2 to 4.1.2-SNAPSHOT, current as of Feb 23rd, and can confirm that this is still a problem. Previously (in 4.0.2) if you left a text field (say it was a score) empty, the field would take on the value of 0 (can't imagine why you would ever want this, but that's what it does). If you set the omitZero parameter on the NumberTranslator on this field to true, then, it would remain null (desired behaviour) when empty. In 4.1.2-SNAPSHOT, it always converts to 0, regardless of the value of the omitZero parameter (bad). J On 8-Jan-07, at 9:56 AM, Jesse Kuhnert wrote: This was a jira issue "fixed" recently. I'm not sure I understand what the expected->actual results are that are questionable. On 1/8/07, Patrick Klein <[EMAIL PROTECTED]> wrote: Hi! After a little testing: The behaviour of the NumberTranslater is persistent in version 4.1.1. Switching back to 4.0.2 for now, which is nothing i want to do as i'd like to use the ajax functionality of tap 4.1.x ... Regards, Patrick > Hi! > > I just recognized that the NumberTranslator does not seem to work > correctly. OmitZero=true results in no value shown in the form- field > after a rewind but the value "0" is stored inside the corresponding > Long- (or Integer / BigDecimal / ...) variable. OmitZero=false shows > the stored "0" in the form-field. > > Has anyone recognized this behaviour, too and if yes is there a > workaround (except writing your own NumberTranslator)? Or is this > Problem maybe allready known and fixed...? > > I'm using this mornings (GMT+1) Tapestry 4.1.2 Snapshot from > mvn-snapshot. > > Regards, >Patrick -- Julian Wood <[EMAIL PROTECTED]> Software Engineer Teaching & Learning Centre University of Calgary http://tlc.ucalgary.ca
Re: tapestry-simple Archetype
Well, I didn't have the right codec on my Mac, so all I get is the
sound of keys clicking!
Here I tried it at the command line:
$ mvn archetype:create -DarchetypeGroupId=org.apache.tapestry
-DarchetypeArtifactId=tapestry-simple -DarchetypeVersion=5.0.1
-DgroupId=org.example -DartifactId=itworks
-DpackageName=org.example.itworks -Dversion=1.0.0-SNAPSHOT
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'archetype'.
[INFO]
[INFO] Building Maven Default Project
[INFO]task-segment: [archetype:create] (aggregator-style)
[INFO]
[INFO] Setting property: classpath.resource.loader.class =>
'org.codehaus.plexus.velocity.ContextClassLoaderResourceLoader'.
[INFO] Setting property: velocimacro.messages.on => 'false'.
[INFO] Setting property: resource.loader => 'classpath'.
[INFO] Setting property: resource.manager.logwhenfound => 'false'.
[INFO] **
[INFO] Starting Jakarta Velocity v1.4
[INFO] RuntimeInstance initializing.
[INFO] Default Properties File:
org/apache/velocity/runtime/defaults/velocity.properties
[INFO] Default ResourceManager initializing. (class
org.apache.velocity.runtime.resource.ResourceManagerImpl)
[INFO] Resource Loader Instantiated:
org.codehaus.plexus.velocity.ContextClassLoaderResourceLoader
[INFO] ClasspathResourceLoader : initialization starting.
[INFO] ClasspathResourceLoader : initialization complete.
[INFO] ResourceCache : initialized. (class
org.apache.velocity.runtime.resource.ResourceCacheImpl)
[INFO] Default ResourceManager initialization complete.
[INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Literal
[INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Macro
[INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Parse
[INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Include
[INFO] Loaded System Directive: org.apache.velocity.runtime.directive.Foreach
[INFO] Created: 20 parsers.
[INFO] Velocimacro : initialization starting.
[INFO] Velocimacro : adding VMs from VM library template : VM_global_library.vm
[ERROR] ResourceManager : unable to find resource
'VM_global_library.vm' in any resource loader.
[INFO] Velocimacro : error using VM library template
VM_global_library.vm :
org.apache.velocity.exception.ResourceNotFoundException: Unable to
find resource 'VM_global_library.vm'
[INFO] Velocimacro : VM library template macro registration complete.
[INFO] Velocimacro : allowInline = true : VMs can be defined inline in templates
[INFO] Velocimacro : allowInlineToOverride = false : VMs defined
inline may NOT replace previous VM definitions
[INFO] Velocimacro : allowInlineLocal = false : VMs defined inline
will be global in scope if allowed.
[INFO] Velocimacro : initialization complete.
[INFO] Velocity successfully started.
[INFO] [archetype:create]
Downloading:
http://repo1.maven.org/maven2/org/apache/tapestry/tapestry-simple/5.0.1/tapestry-simple-5.0.1.jar
9K downloaded
[INFO]
[INFO] Using following parameters for creating Archetype: tapestry-simple:5.0.1
[INFO]
[INFO] Parameter: groupId, Value: org.example
[INFO] Parameter: packageName, Value: org.example.itworks
[INFO] Parameter: basedir, Value: /Users/Howard/work
[INFO] Parameter: package, Value: org.example.itworks
[INFO] Parameter: version, Value: 1.0.0-SNAPSHOT
[INFO] Parameter: artifactId, Value: itworks
[INFO] * End of debug info from resources from
generated POM ***
[WARNING] org.apache.velocity.runtime.exception.ReferenceException:
reference : template =
archetype-resources/src/main/webapp/WEB-INF/Start.html [line 11,column
34] : ${currentTime} is not a valid reference.
[INFO] Archetype created in dir: /Users/Howard/work/itworks
[INFO]
[INFO] BUILD SUCCESSFUL
[INFO]
[INFO] Total time: 2 seconds
[INFO] Finished at: Wed Feb 21 15:27:57 PST 2007
[INFO] Final Memory: 4M/8M
[INFO]
~/work
$ find itworks
itworks
itworks/.classpath
itworks/.project
itworks/pom.xml
itworks/src
itworks/src/main
itworks/src/main/java
itworks/src/main/java/org
itworks/src/main/java/org/example
itworks/src/main/java/org/example/itworks
itworks/src/main/java/org/example/itworks/pages
itworks/src/main/java/org/example/itworks/pages/Start.java
itworks/src/main/java/org/example/itworks/services
itworks/src/main/java/org/example/itworks/services/AppModule.java
itworks/src/main/resources
itworks/src/main/resources/log4j.properties
Re: State Application Object ( Session ) from constructor method
Tks. It´s a live. ;-)
On 2/21/07, Howard Lewis Ship <[EMAIL PROTECTED]> wrote:
You can't. The page is not fully "baked" at the time the constructor
is invoked.
What you want is a PageLoadListener. Just implement the interface and
the pageDidLoad() method and Tapestry will invoke it. That's where
you can do the initialization you want.
On 2/21/07, Bruno Mignoni <[EMAIL PROTECTED]> wrote:
> I am use Tapestry 4.02 and Tomcat 5.
>
> How access a state Application Object ( Session ) from de constructor
> method?
>
> package com.unicred.tapestry.ib.pages;
>
> import java.sql.SQLException;
>
> import org.apache.tapestry.annotations.InjectState;
>
> import com.unicred.tapestry.ib.InternetBankingBasePage;
> import com.unicred.tapestry.ib.sistema.Procuracao;
>
> public abstract class Home extends InternetBankingBasePage {
>
> public Home() throws SQLException, Exception {
>
> System.out.println(getProcuracao().getNomeUsuario());
>
>
> }
>
> @InjectState("procuracao")
> public abstract Procuracao getProcuracao();
>
>
>
> }
>
> Don't work System.out.println(getProcuracao().getNomeUsuario());
>
> Need to use PageAttachListener (
> http://tapestry.apache.org/tapestry4/UsersGuide/events.html )? How do
it?
>
> Tks
> <
http://tapestry.apache.org/tapestry4/tapestry/apidocs/org/apache/tapestry/event/PageAttachListener.html
>--
>
> __
> Bruno Mignoni
> [EMAIL PROTECTED]
>
--
Howard M. Lewis Ship
TWD Consulting, Inc.
Independent J2EE / Open-Source Java Consultant
Creator and PMC Chair, Apache Tapestry
Creator, Apache HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
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--
__
Bruno Mignoni
[EMAIL PROTECTED]
Re: Foreach, iterate over several collections at once
Wow! OK, now I get it. Yes, I'm using T3.x. I never thought about that use for the index parameter, I had used only to display the current row's number. Your solution is very attractive because it will be trivial to add new columns to the table in case I need to, which was a major problem with the solution I was devising. It was only a matter of thinking about OGNL expressions in a different way than I always use them. Thanks a lot, Mark. Regards, Dario On 2/21/07, Mark Stang <[EMAIL PROTECTED]> wrote: Dario, The Foreach component T3.x, which I presume you are using (If you are not,check the components for your version), contains a parameter named "index". index int out no Used to store the index of the current value within the stream of elements provided by the source parameter. The index parameter is explicitly updated before the value parameter. If you set it: index="ognl:currentIndex" Then as Tapestry iterates over the list that was passed to the "Foreach" it will call "setCurrentIndex" with the current index. This happens at the top of the loop. So, in the body of the Foreach for a particular you can call getList1(). Since you are not passing in a value/parameter to getList1(), how does it know what item in the list to return? Inside the method, you use "currentIndex" to pick the item in the list to return. Basically, the Foreach knows what iteration it is on. You can have it pass that value back to your Java Class with a setter. Whenever you call any of the getList methods, they use the value passed in by the Foreach. HTH, Mark Mark J. Stang Senior Engineer/Architect office: +1 303.468.2900 mobile: +1 303.507.2833 Ping Identity -Original Message- From: Darío Vasconcelos [mailto:[EMAIL PROTECTED] Sent: Wed 2/21/2007 3:06 PM To: Tapestry users Subject: Re: Foreach, iterate over several collections at once Sorry Mark, I didn't quite understand what you're saying, although it sounds very interesting. I can't imagine how I could make Foreach update the current value for each list, using only one Foreach. Or could I use nested Foreachs? If you would be so kind as to give me a small example, I would be very grateful... Dario. On 2/21/07, Mark Stang <[EMAIL PROTECTED]> wrote: > Hi, > The Foreach can call your class with the "current" index and set it. The "getters" use that value to return the "current" value for each list. > > HTH, > > Mark > > Mark J. Stang > Senior Engineer/Architect > office: +1 303.468.2900 > mobile: +1 303.507.2833 > Ping Identity > > > > -Original Message- > From: Darío Vasconcelos [mailto:[EMAIL PROTECTED] > Sent: Wed 2/21/2007 2:43 PM > To: Tapestry users > Subject: Foreach, iterate over several collections at once > > Hi, > > I'm trying to solve a problem that might be trivial in JSP, but I > can't find a way to do it in Tapestry without some collection munching > in Java. > > My problem is that I have three ArrayLists that hold very similar > information, and need to be displayed inside the same table. To > explain this better, let me draw a simple diagram: > > HeaderRow1 list1 list2 list3 > HeaderRow2 list2 list2 list3 > HeaderRow3 list3 list2 list3 > > That is, List1 contains a HashMap with two elements: HeaderRow1 and > the value for List1. List2 contains also a HashMap with twoelements, > HeaderRow1 and list2. The same applies to List3. > > I'm thinking on using a Foreach for this, but it will only iterate > over one of the lists, and I **really** need this data to be in the > same table. Of course, more than just one column per list needs to be > displayed, my example is a simplification. > > The obvious solution is to create a getJoinedTable() method and join > the three collections into one big ArrayList, but the code isn't nice, > and since I need to do this for several other pages, the picture is > not very nice. > > What puzzles me is that the solution to this problem in JSP would be > s simple!! There has to be a "Tapestried" way to do it... > > Regards, > > Dario > > > -- > A zygote is a gamete's way of producing more gametes. This may be the > purpose of the universe. > - Robert A. Heinlein > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe. - Robert A. Heinlein - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe. - Robert A. Heinlein - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED
RE: Foreach, iterate over several collections at once
Dario, The Foreach component T3.x, which I presume you are using (If you are not,check the components for your version), contains a parameter named "index". index int out no Used to store the index of the current value within the stream of elements provided by the source parameter. The index parameter is explicitly updated before the value parameter. If you set it: index="ognl:currentIndex" Then as Tapestry iterates over the list that was passed to the "Foreach" it will call "setCurrentIndex" with the current index. This happens at the top of the loop. So, in the body of the Foreach for a particular you can call getList1(). Since you are not passing in a value/parameter to getList1(), how does it know what item in the list to return? Inside the method, you use "currentIndex" to pick the item in the list to return. Basically, the Foreach knows what iteration it is on. You can have it pass that value back to your Java Class with a setter. Whenever you call any of the getList methods, they use the value passed in by the Foreach. HTH, Mark Mark J. Stang Senior Engineer/Architect office: +1 303.468.2900 mobile: +1 303.507.2833 Ping Identity -Original Message- From: Darío Vasconcelos [mailto:[EMAIL PROTECTED] Sent: Wed 2/21/2007 3:06 PM To: Tapestry users Subject: Re: Foreach, iterate over several collections at once Sorry Mark, I didn't quite understand what you're saying, although it sounds very interesting. I can't imagine how I could make Foreach update the current value for each list, using only one Foreach. Or could I use nested Foreachs? If you would be so kind as to give me a small example, I would be very grateful... Dario. On 2/21/07, Mark Stang <[EMAIL PROTECTED]> wrote: > Hi, > The Foreach can call your class with the "current" index and set it. The > "getters" use that value to return the "current" value for each list. > > HTH, > > Mark > > Mark J. Stang > Senior Engineer/Architect > office: +1 303.468.2900 > mobile: +1 303.507.2833 > Ping Identity > > > > -Original Message- > From: Darío Vasconcelos [mailto:[EMAIL PROTECTED] > Sent: Wed 2/21/2007 2:43 PM > To: Tapestry users > Subject: Foreach, iterate over several collections at once > > Hi, > > I'm trying to solve a problem that might be trivial in JSP, but I > can't find a way to do it in Tapestry without some collection munching > in Java. > > My problem is that I have three ArrayLists that hold very similar > information, and need to be displayed inside the same table. To > explain this better, let me draw a simple diagram: > > HeaderRow1 list1 list2 list3 > HeaderRow2 list2 list2 list3 > HeaderRow3 list3 list2 list3 > > That is, List1 contains a HashMap with two elements: HeaderRow1 and > the value for List1. List2 contains also a HashMap with twoelements, > HeaderRow1 and list2. The same applies to List3. > > I'm thinking on using a Foreach for this, but it will only iterate > over one of the lists, and I **really** need this data to be in the > same table. Of course, more than just one column per list needs to be > displayed, my example is a simplification. > > The obvious solution is to create a getJoinedTable() method and join > the three collections into one big ArrayList, but the code isn't nice, > and since I need to do this for several other pages, the picture is > not very nice. > > What puzzles me is that the solution to this problem in JSP would be > s simple!! There has to be a "Tapestried" way to do it... > > Regards, > > Dario > > > -- > A zygote is a gamete's way of producing more gametes. This may be the > purpose of the universe. > - Robert A. Heinlein > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe. - Robert A. Heinlein - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tapestry-simple Archetype
Here is a 3.7 MB screencast on a slow connection http://svarog.homeip.net/screencast/archetype.avi 2007/2/21, Howard Lewis Ship <[EMAIL PROTECTED]>: Could you carefully double check this. I haven't tried this using the maven plugin (in fact, I'm using 0.0.9 which may not even have that feature). I've tested this from the command line. On 2/21/07, Borut Bolčina <[EMAIL PROTECTED]> wrote: > Hello, > > I think there is an error in creating package names in this archetype. When > running > > mvn archetype:create > -DarchetypeGroupId= org.apache.tapestry-DarchetypeArtifactId=tapestry-simple > -DarchetypeVersion= > 5.0.1 -DgroupId=*org.example* -DartifactId=*myapp* -DpackageName=* > org.example.myapp* -Dversion=*1.0.0-SNAPSHOT* > > > the following directory structure gets created > > work\myapp\src\main\java\pages\org\example\myapp > > but the java class Start.java in that directory has > package org.example.myapp.pages; > > so one must move the class into the right package which is with one click in > Eclipse, but still... > > The same goes for services directory. > > I am using http://m2eclipse.codehaus.org/ version 0.0.10 > > Cheers, > Borut > -- Howard M. Lewis Ship TWD Consulting, Inc. Independent J2EE / Open-Source Java Consultant Creator and PMC Chair, Apache Tapestry Creator, Apache HiveMind Professional Tapestry training, mentoring, support and project work. http://howardlewisship.com
Re: Foreach, iterate over several collections at once
Sorry Mark, I didn't quite understand what you're saying, although it sounds very interesting. I can't imagine how I could make Foreach update the current value for each list, using only one Foreach. Or could I use nested Foreachs? If you would be so kind as to give me a small example, I would be very grateful... Dario. On 2/21/07, Mark Stang <[EMAIL PROTECTED]> wrote: Hi, The Foreach can call your class with the "current" index and set it. The "getters" use that value to return the "current" value for each list. HTH, Mark Mark J. Stang Senior Engineer/Architect office: +1 303.468.2900 mobile: +1 303.507.2833 Ping Identity -Original Message- From: Darío Vasconcelos [mailto:[EMAIL PROTECTED] Sent: Wed 2/21/2007 2:43 PM To: Tapestry users Subject: Foreach, iterate over several collections at once Hi, I'm trying to solve a problem that might be trivial in JSP, but I can't find a way to do it in Tapestry without some collection munching in Java. My problem is that I have three ArrayLists that hold very similar information, and need to be displayed inside the same table. To explain this better, let me draw a simple diagram: HeaderRow1 list1 list2 list3 HeaderRow2 list2 list2 list3 HeaderRow3 list3 list2 list3 That is, List1 contains a HashMap with two elements: HeaderRow1 and the value for List1. List2 contains also a HashMap with twoelements, HeaderRow1 and list2. The same applies to List3. I'm thinking on using a Foreach for this, but it will only iterate over one of the lists, and I **really** need this data to be in the same table. Of course, more than just one column per list needs to be displayed, my example is a simplification. The obvious solution is to create a getJoinedTable() method and join the three collections into one big ArrayList, but the code isn't nice, and since I need to do this for several other pages, the picture is not very nice. What puzzles me is that the solution to this problem in JSP would be s simple!! There has to be a "Tapestried" way to do it... Regards, Dario -- A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe. - Robert A. Heinlein - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe. - Robert A. Heinlein - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Foreach, iterate over several collections at once
Hi, The Foreach can call your class with the "current" index and set it. The "getters" use that value to return the "current" value for each list. HTH, Mark Mark J. Stang Senior Engineer/Architect office: +1 303.468.2900 mobile: +1 303.507.2833 Ping Identity -Original Message- From: Darío Vasconcelos [mailto:[EMAIL PROTECTED] Sent: Wed 2/21/2007 2:43 PM To: Tapestry users Subject: Foreach, iterate over several collections at once Hi, I'm trying to solve a problem that might be trivial in JSP, but I can't find a way to do it in Tapestry without some collection munching in Java. My problem is that I have three ArrayLists that hold very similar information, and need to be displayed inside the same table. To explain this better, let me draw a simple diagram: HeaderRow1 list1 list2 list3 HeaderRow2 list2 list2 list3 HeaderRow3 list3 list2 list3 That is, List1 contains a HashMap with two elements: HeaderRow1 and the value for List1. List2 contains also a HashMap with twoelements, HeaderRow1 and list2. The same applies to List3. I'm thinking on using a Foreach for this, but it will only iterate over one of the lists, and I **really** need this data to be in the same table. Of course, more than just one column per list needs to be displayed, my example is a simplification. The obvious solution is to create a getJoinedTable() method and join the three collections into one big ArrayList, but the code isn't nice, and since I need to do this for several other pages, the picture is not very nice. What puzzles me is that the solution to this problem in JSP would be s simple!! There has to be a "Tapestried" way to do it... Regards, Dario -- A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe. - Robert A. Heinlein - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Foreach, iterate over several collections at once
Hi, I'm trying to solve a problem that might be trivial in JSP, but I can't find a way to do it in Tapestry without some collection munching in Java. My problem is that I have three ArrayLists that hold very similar information, and need to be displayed inside the same table. To explain this better, let me draw a simple diagram: HeaderRow1 list1 list2 list3 HeaderRow2 list2 list2 list3 HeaderRow3 list3 list2 list3 That is, List1 contains a HashMap with two elements: HeaderRow1 and the value for List1. List2 contains also a HashMap with twoelements, HeaderRow1 and list2. The same applies to List3. I'm thinking on using a Foreach for this, but it will only iterate over one of the lists, and I **really** need this data to be in the same table. Of course, more than just one column per list needs to be displayed, my example is a simplification. The obvious solution is to create a getJoinedTable() method and join the three collections into one big ArrayList, but the code isn't nice, and since I need to do this for several other pages, the picture is not very nice. What puzzles me is that the solution to this problem in JSP would be s simple!! There has to be a "Tapestried" way to do it... Regards, Dario -- A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe. - Robert A. Heinlein - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: My crap development environment
hi, as you are using windows, there are some new options what can slow down your system. We have expirience such slow downs, when using tortoisesvn and an on-access virus-scanner. It is always a good thing trying to disable these scanners if there are performance issues with saving files. Cheers, Markus Murray Collingwood schrieb: > Hi all > > Does anybody else find this hellishly confusing? It makes me want to throw > everything out and go back to a nice simple DOS system and a Turbo C > compiler! > How much simpler it was back then... > > Okay, I downloaded the latest Eclipse system, copied my project into a fresh > workspace. Saving a file was back to a sub-second response. Actually I tried > saving a second file to make sure it wasn't a fluke the first time. There was > definitely a problem somewhere and it has now gone away. > > Okay, now the second part of the problem. > > Tomcat or Jetty??? > > I don't want to package every time I make a small change to a config file or > HTML, so I want the servlet engine to use my files from my development area. > My > previous frustrations with restarting tomcat have encouraged me down the Jetty > track - I downloaded Jetty 6 yesterday and the test system was working in > about > 5 minutes, pretty good. I then added a context.xml for my application and now > when I start Jetty it simple crashes and refuses to start the application. I > get an error like: 'No class for Servlet or Filter' > > I haven't been able to find any help on this error. > > I did find information on a Jetty-Maven-Plugin but form my reading this is all > about packaging the application - I don't want to go there. I also found a > number of recent comments about Maven2 saying it was still quite buggy. > > Do I press ahead trying to solve the Jetty stuff or do I revert back to a > Tomcat > system??? > > I'm developing in a Windows XP environment so this may limit me from some of > the > options suggested here. > > PS Thanks to everybody who has contributed so far - I really appreciate your > ideas and suggestions. You really are a very friendly bunch of people. > > PPS My computer is an Intel 2.8ghz processor with 1gb ram and 80gb harddrive. > It's not slow with other stuff. > > Cheers > Murray > > Some of my understandings: > Sysdeo-tomcat-plugin - packages app and restarts Tomcat > WTP - packages app and restarts Tomcat > Web Standard Tools - I was using this > AJDT - never used it > Jetty6 plugin - is this the Jetty-maven-plugin referred above of different? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Putting hivemind configuration files outside the WAR
Hi, I have configuration data (hivemind.xml) which may change reasonably often, and which I'd like to be able to change without rebuilding the war file. What's the best way to make this available to HiveMind in Tapestry? Is there a easy way to do that or do I have to subclass ApplicationServlet and overrid the constructRegistry() method ? D.
Re: Tapestry 5 NPE in PageTester
Oh, and from memory, I'm guessing this has something to do with the code that adds the default Tapstry stylesheet to rendered pages. On 2/21/07, Howard Lewis Ship <[EMAIL PROTECTED]> wrote: Nope, you tend to backtrack to the chunk of code that dynamically built the Javassist class. Here, I'd start looking at line 78 and see what's going on there. On 2/21/07, Matt Ayres <[EMAIL PROTECTED]> wrote: > I'm running into a NullPointerException in PageTester if a > element exists in the page template. Here's a snippet of the stack > trace: > > Exception in thread "main" java.lang.NullPointerException > at $Request_110d9536317.getContextPath($Request_110d9536317.java) > at $Request_110d95362e3.getContextPath($Request_110d95362e3.java) > at > org.apache.tapestry.internal.services.ClasspathAssetAliasManagerImpl.toC > lientURL(ClasspathAssetAliasManagerImpl.java:78) > > There's a little more info at > https://issues.apache.org/jira/browse/TAPESTRY-1279 > > Is there a good way to debug a Javassist manipulated class? > > -Matt > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- Howard M. Lewis Ship TWD Consulting, Inc. Independent J2EE / Open-Source Java Consultant Creator and PMC Chair, Apache Tapestry Creator, Apache HiveMind Professional Tapestry training, mentoring, support and project work. http://howardlewisship.com -- Howard M. Lewis Ship TWD Consulting, Inc. Independent J2EE / Open-Source Java Consultant Creator and PMC Chair, Apache Tapestry Creator, Apache HiveMind Professional Tapestry training, mentoring, support and project work. http://howardlewisship.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [WARNING] Tap 5 redirect after onActivate
Just checked in the changes to SVN.
On 2/20/07, bueggers <[EMAIL PROTECTED]> wrote:
ok, thanks
Howard Lewis Ship wrote:
>
> Your snippet is what I have in mind, but I haven't had a chance to
> implement it, yet.
>
> I suspect a 5.0.2 is around the corner, but I'm fighting some fires right
> now!
>
> On 2/20/07, bueggers <[EMAIL PROTECTED]> wrote:
>>
>> It basically works when I do the following.
>>
>> try {
>> response.sendRedirect("../Error");
>> } catch (IOException e1) {
>> e1.printStackTrace();
>> }
>>
>> But this is quite dirty.
>> In the above snippet I can show the error page. But I need to set an
>> error
>> message to the error page.
>> This makes me manually do url encoding.
>> I expect the framework to do all that for me.
>>
>> I would expect to be able to do something like the following:
>>
>> @InjectPage
>> private Error errorPage;
>>
>> @SetupRender
>> private Object loadDetails(){
>>
>> //id not found
>> errorPage.setErrorMessage("No valid id " + id);
>> return errorPage;
>> }
>>
>>
>>
>>
>> Massimo Lusetti wrote:
>> >
>> > On 2/20/07, bueggers <[EMAIL PROTECTED]> wrote:
>> >
>> >> But where to do the redirection to an error page in Tap 5?
>> >> The onActivate method detects the error but how to display other page
>> >> then?
>> >
>> > Isn't as simple as injecting infrastructure:Response and then use
>> > sendRedirect ?
>> >
>> > --
>> > Massimo
>> > http://meridio.blogspot.com
>> >
>> > -
>> > To unsubscribe, e-mail: [EMAIL PROTECTED]
>> > For additional commands, e-mail: [EMAIL PROTECTED]
>> >
>> >
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Tap-5-redirect-after-onActivate-tf3260344.html#a9076144
>> Sent from the Tapestry - User mailing list archive at Nabble.com.
>>
>>
>> -
>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> For additional commands, e-mail: [EMAIL PROTECTED]
>>
>>
>
>
> --
> Howard M. Lewis Ship
> TWD Consulting, Inc.
> Independent J2EE / Open-Source Java Consultant
> Creator and PMC Chair, Apache Tapestry
> Creator, Apache HiveMind
>
> Professional Tapestry training, mentoring, support
> and project work. http://howardlewisship.com
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
>
--
View this message in context:
http://www.nabble.com/Tap-5-redirect-after-onActivate-tf3260344.html#a9076245
Sent from the Tapestry - User mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
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--
Howard M. Lewis Ship
TWD Consulting, Inc.
Independent J2EE / Open-Source Java Consultant
Creator and PMC Chair, Apache Tapestry
Creator, Apache HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: Tapestry 5 NPE in PageTester
Nope, you tend to backtrack to the chunk of code that dynamically built the Javassist class. Here, I'd start looking at line 78 and see what's going on there. On 2/21/07, Matt Ayres <[EMAIL PROTECTED]> wrote: I'm running into a NullPointerException in PageTester if a element exists in the page template. Here's a snippet of the stack trace: Exception in thread "main" java.lang.NullPointerException at $Request_110d9536317.getContextPath($Request_110d9536317.java) at $Request_110d95362e3.getContextPath($Request_110d95362e3.java) at org.apache.tapestry.internal.services.ClasspathAssetAliasManagerImpl.toC lientURL(ClasspathAssetAliasManagerImpl.java:78) There's a little more info at https://issues.apache.org/jira/browse/TAPESTRY-1279 Is there a good way to debug a Javassist manipulated class? -Matt - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Howard M. Lewis Ship TWD Consulting, Inc. Independent J2EE / Open-Source Java Consultant Creator and PMC Chair, Apache Tapestry Creator, Apache HiveMind Professional Tapestry training, mentoring, support and project work. http://howardlewisship.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: T5 BeanEditForm screencast
The code that builds up the field validation is pluggable; originally I was thinking in terms of Hibernate/EJB3 annotations, but it should be reasonble to handle all kinds of approaches. This part of the code and design is still very alpha (in flux). On 2/21/07, Jiri Mares <[EMAIL PROTECTED]> wrote: Hi Howard, T5 looks very good. I would like to ask about the screencast #4 where you presented BeanEditForm component. For validation there is the annotation, which causes me problems. I don't want to annotade my business objects with tapestry annotation (they start to depend on tapestry). At the moment we are using OVal (oval.sf.net) for the Design by Contract and the oval annotations carry the same information as the tapestry validate annotation. So will it be easy to use for validation these annotations (instead of the tapestry one)? Meaning if you are thinking about some kind of pluggable validation framework ... or at least pluggable validation definition framework. Thanks -- Jiří Mareš (mailto:[EMAIL PROTECTED]) ČSAD SVT Praha, s.r.o. (http://www.svt.cz) Czech Republic - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Howard M. Lewis Ship TWD Consulting, Inc. Independent J2EE / Open-Source Java Consultant Creator and PMC Chair, Apache Tapestry Creator, Apache HiveMind Professional Tapestry training, mentoring, support and project work. http://howardlewisship.com
Re: State Application Object ( Session ) from constructor method
You can't. The page is not fully "baked" at the time the constructor
is invoked.
What you want is a PageLoadListener. Just implement the interface and
the pageDidLoad() method and Tapestry will invoke it. That's where
you can do the initialization you want.
On 2/21/07, Bruno Mignoni <[EMAIL PROTECTED]> wrote:
I am use Tapestry 4.02 and Tomcat 5.
How access a state Application Object ( Session ) from de constructor
method?
package com.unicred.tapestry.ib.pages;
import java.sql.SQLException;
import org.apache.tapestry.annotations.InjectState;
import com.unicred.tapestry.ib.InternetBankingBasePage;
import com.unicred.tapestry.ib.sistema.Procuracao;
public abstract class Home extends InternetBankingBasePage {
public Home() throws SQLException, Exception {
System.out.println(getProcuracao().getNomeUsuario());
}
@InjectState("procuracao")
public abstract Procuracao getProcuracao();
}
Don't work System.out.println(getProcuracao().getNomeUsuario());
Need to use PageAttachListener (
http://tapestry.apache.org/tapestry4/UsersGuide/events.html )? How do it?
Tks
--
__
Bruno Mignoni
[EMAIL PROTECTED]
--
Howard M. Lewis Ship
TWD Consulting, Inc.
Independent J2EE / Open-Source Java Consultant
Creator and PMC Chair, Apache Tapestry
Creator, Apache HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: My crap development environment
Nobody asked one of the more obvious questions: How much free RAM do you have? How full and/or fragmented is your drive? Heavy and/or ineffcient swapping could also slow you down. (Also, what kind of machine? Some Java implementations are faster than others.) ...R On 2/14/07, Murray Collingwood <[EMAIL PROTECTED]> wrote: Hi all I have suffered long and hard under Eclipse and Tomcat. Is it really necessary for me to wait so long while a file is saved or an application is published??? Saving a .java file: 15 seconds Saving a .html file: 15 seconds Saving a .jwc file: 28 seconds Stopping the tomcat server: 2 seconds (acceptable) Publishing to the tomcat server: 45 seconds Starting the tomcat server: 54 seconds (it insists on publishing first) - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tapestry-simple Archetype
Could you carefully double check this. I haven't tried this using the maven plugin (in fact, I'm using 0.0.9 which may not even have that feature). I've tested this from the command line. On 2/21/07, Borut Bolčina <[EMAIL PROTECTED]> wrote: Hello, I think there is an error in creating package names in this archetype. When running mvn archetype:create -DarchetypeGroupId=org.apache.tapestry-DarchetypeArtifactId=tapestry-simple -DarchetypeVersion= 5.0.1 -DgroupId=*org.example* -DartifactId=*myapp* -DpackageName=* org.example.myapp* -Dversion=*1.0.0-SNAPSHOT* the following directory structure gets created work\myapp\src\main\java\pages\org\example\myapp but the java class Start.java in that directory has package org.example.myapp.pages; so one must move the class into the right package which is with one click in Eclipse, but still... The same goes for services directory. I am using http://m2eclipse.codehaus.org/ version 0.0.10 Cheers, Borut -- Howard M. Lewis Ship TWD Consulting, Inc. Independent J2EE / Open-Source Java Consultant Creator and PMC Chair, Apache Tapestry Creator, Apache HiveMind Professional Tapestry training, mentoring, support and project work. http://howardlewisship.com
tapestry-simple Archetype
Hello, I think there is an error in creating package names in this archetype. When running mvn archetype:create -DarchetypeGroupId=org.apache.tapestry-DarchetypeArtifactId=tapestry-simple -DarchetypeVersion= 5.0.1 -DgroupId=*org.example* -DartifactId=*myapp* -DpackageName=* org.example.myapp* -Dversion=*1.0.0-SNAPSHOT* the following directory structure gets created work\myapp\src\main\java\pages\org\example\myapp but the java class Start.java in that directory has package org.example.myapp.pages; so one must move the class into the right package which is with one click in Eclipse, but still... The same goes for services directory. I am using http://m2eclipse.codehaus.org/ version 0.0.10 Cheers, Borut
Using EventListener to submit unknown form
I have a component that is meant to be used inside a form. I would like to have an eventListener that submits the enclosing form but I have no way of knowing what the name of the form component will be. Is there any way to have eventListener submit the enclosing form rather than specifying a form component by name? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
State Application Object ( Session ) from constructor method
I am use Tapestry 4.02 and Tomcat 5.
How access a state Application Object ( Session ) from de constructor
method?
package com.unicred.tapestry.ib.pages;
import java.sql.SQLException;
import org.apache.tapestry.annotations.InjectState;
import com.unicred.tapestry.ib.InternetBankingBasePage;
import com.unicred.tapestry.ib.sistema.Procuracao;
public abstract class Home extends InternetBankingBasePage {
public Home() throws SQLException, Exception {
System.out.println(getProcuracao().getNomeUsuario());
}
@InjectState("procuracao")
public abstract Procuracao getProcuracao();
}
Don't work System.out.println(getProcuracao().getNomeUsuario());
Need to use PageAttachListener (
http://tapestry.apache.org/tapestry4/UsersGuide/events.html )? How do it?
Tks
--
__
Bruno Mignoni
[EMAIL PROTECTED]
client side interception of responce to 'updateComponent()'
i'd like to trigger a javascript-function after a Tapestry-component is updated with 'cycle.getResponseBuilder().updateComponent()' Does somebody know, how one can do it? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Record locking
You use the session id so that you don't maintain the reference to the
actual session. When the session listener sees that the session dies,
he removes all object locks for that session. Now, this still doesn't
solve the problem of one user opening multiple windows and trying to
edit the same object, but if they're that stupid, then they deserve to
lose their work (kidding of course, but just wanted to point out the
issue).
On 2/21/07, Andrea Chiumenti <[EMAIL PROTECTED]> wrote:
nice to know ;)
On 2/21/07, Peter Stavrinides <[EMAIL PROTECTED]> wrote:
>
> Andrea,
> You can do this If you create a state object that has an application
> scope... you can wire your session listener to it to add and remove the
> session id's.
>
>
>
> Andrea Chiumenti wrote:
> > But session is user specific and you want to lock the record accross the
> > application, how whould you do this ?
> >
> > On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
> >>
> >> Actually, no, if the browser dies, the record won't stay locked.
> >> The updating happens from the edit page; if the browser crashes,
> >> there's no edit page, so no updating, so the lock expires.
> >>
> >> Cheers,
> >>
> >> Robert
> >>
> >> On Feb 21, 2007, at 2/214:03 AM , Andrea Chiumenti wrote:
> >>
> >> > ... But if the browser dies for some reason (very frequent
> >> > especially with
> >> > MS products), then the record will remain locked, the only
> >> > possibility with
> >> > this solution would be to add a locking timeout with application
> >> > scope.
> >> >
> >> > On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
> >> >>
> >> >> In my case, it was straightforward: the user is considered to be
> >> >> "still editing" if they have a browser window open to the edit page
> >> >> for the object in question; if they navigate away from that page,
> the
> >> >> system considers their edit session over.
> >> >>
> >> >> Robert
> >> >>
> >> >>
> >> >> On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
> >> >>
> >> >> > Hi Robert
> >> >> >
> >> >> > I like your idea, "you say that periodic ajax calls are sent to
> the
> >> >> > server to inform of the fact that the user is still editing" how
> >> >> > exactly do you track if a user is still editing?
> >> >> >
> >> >> > Robert Zeigler wrote:
> >> >> >> The main problem with using a session timeout for the lock is
> that
> >> >> >> it doesn't allow you to detect events where a user starts to edit
> >> >> >> an object, does not finish, but remains active in the webapp; the
> >> >> >> session won't die, and neither will your lock. You have to
> >> >> >> incorporate time at least to some degree. I implemented similar
> >> >> >> functionality in an application recently, but used a bit of ajax
> >> >> >> magic to ensure that the lock was held for exactly as long as it
> >> >> >> needed to be and no longer (while the user is editing the object,
> >> >> >> periodic ajax calls are sent to the server to inform of the fact
> >> >> >> that the user is still editing; if the user saves, the lock is
> >> >> >> released; if the user moves to a different portion of the webapp
> >> >> >> without saving or canceling the lock, the lock expires since
> there
> >> >> >> are no more ajax calls to keep the lock valid)
> >> >> >>
> >> >> >> Robert
> >> >> >>
> >> >> >> On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
> >> >> >>
> >> >> >>> I don't think the benefits justify the effort involved to
> >> >> >>> maintain all those timestamps, its a bit too complex. Perhaps
> its
> >> >> >>> better to stick to a single table as well... rather write the
> >> >> >>> session id into the database to checkout a customer record.
> >> >> >>>
> >> >> >>> Allow updates to a customer record if its not checked out, and
> >> >> >>> this way you have no worries about lock expiration etc.
> >> >> >>>
> >> >> >>> You should maintain an ASO that tracks all active sessions by
> >> >> >>> session id. Once a user queries for a customer record that has
> >> >> >>> been checked out, if the session ID still exists in the ASO,
> then
> >> >> >>> refuse update access and grant only read access, simple and
> >> >> >>> elegant. Once the user saves successfully release the lock in
> the
> >> >> >>> database. if a session is interrupted for whatever reason, then
> >> >> >>> using a session timeout of 20 or 30 minutes and a session
> >> >> >>> listener you clean up removing the session ID from the ASO and
> >> >> >>> database... so you are well covered. I am no guru like some of
> >> >> >>> these other guys, but this works for me and its nice and
> >> >> >>> simple... here is a brief implementation outline:
> >> >> >>>
> >> >> >>> public class ApplicationManager {
> >> >> >>>
> >> >> >>> /** variable to store the singleton ApplicationManager */
> >> >> >>> private static final ApplicationManager
> >> >> >>> applicationManagerInstance_ = new ApplicationManager();
> >> >> >>>
> >> >> >>> /** Hashtable containing visit history objects.
> is
> >> >> >
Re: Problem with including static javascript file
ok sometimes you just need to leave your computer for a while the easiest way to use is to put the static .js file into the classpath, lets say "/common/js". The resource-path attribute then requires an ABSOLUTE classpath to this resource, like"/common/js/static.js". if the .script is located at "WEB-INF/web" and the resource-path attribute is "static.js". Tapestry will generate "gp/WEB-INF/web/static.js" for the scripts url which will not work. Kristian Marinkovic Kopie 21.02.2007 13:55Thema Problem with including static javascript file Bitte antworten an "Tapestry users" <[EMAIL PROTECTED] pache.org> hi all, i'm not able to include a static javascript file into my page. could someone point me the right way how can i include a static javascript file into my page when using the @Body and @Shell component? thats what i have so far: .script file located at WEB-INF/web:myinit(); static.js is located : WEB-INF/web/static.js the rendered page has following url: i even tried to put into the classpath but with no success. the path of static.js always gets the "web" prefix (folder of my .script file ) thanks kris - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [WARNING] ASO auto-startup (Tap 4)
You can also consider registeing tapestry ApplicationInitializer See hivemodule of the tapestry.init http://tapestry.apache.org/tapestry4/tapestry/hivedocs/config/tapestry.init.ApplicationInitializers.html http://tapestry.apache.org/tapestry4/tapestry/hivedocs/module/tapestry.init.html On 21/02/07, Gurps <[EMAIL PROTECTED]> wrote: ok, what if I have a daemon class that polls something in the database every now and then. However, on tapestry startup it must be already initialized. Would i use a runnable class and then just use hivemind.Startup? Is this the best practise? Thanks Howard Lewis Ship wrote: > > An "ASO" that exists at start is, ipso facto, a shared across all users > object. > > In that case, a HiveMind service is appropriate, rather than an ASO. > > On 2/18/07, Gurps <[EMAIL PROTECTED]> wrote: >> >> Hi >> >> I have created an ASO and i'd like it to startup when everything >> initialises: >> >> >> >> > configuration-id="tapestry.state.ApplicationObjects"> >> >> >> >> >> >> >> >> >> >> >> >> It seems "hivemind.Startup" is not recognised. How do I do this in >> tapestry >> ??? >> >> Cheers, >> -- >> View this message in context: >> http://www.nabble.com/ASO-auto-startup-%28Tap-4%29-tf3250438.html#a9035803 >> Sent from the Tapestry - User mailing list archive at Nabble.com. >> >> >> - >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > > -- > Howard M. Lewis Ship > TWD Consulting, Inc. > Independent J2EE / Open-Source Java Consultant > Creator and PMC Chair, Apache Tapestry > Creator, Apache HiveMind > > Professional Tapestry training, mentoring, support > and project work. http://howardlewisship.com > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/ASO-auto-startup-%28Tap-4%29-tf3250438.html#a9072401 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Best regards, Renat Zubairov - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Record locking
nice to know ;)
On 2/21/07, Peter Stavrinides <[EMAIL PROTECTED]> wrote:
Andrea,
You can do this If you create a state object that has an application
scope... you can wire your session listener to it to add and remove the
session id's.
Andrea Chiumenti wrote:
> But session is user specific and you want to lock the record accross the
> application, how whould you do this ?
>
> On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
>>
>> Actually, no, if the browser dies, the record won't stay locked.
>> The updating happens from the edit page; if the browser crashes,
>> there's no edit page, so no updating, so the lock expires.
>>
>> Cheers,
>>
>> Robert
>>
>> On Feb 21, 2007, at 2/214:03 AM , Andrea Chiumenti wrote:
>>
>> > ... But if the browser dies for some reason (very frequent
>> > especially with
>> > MS products), then the record will remain locked, the only
>> > possibility with
>> > this solution would be to add a locking timeout with application
>> > scope.
>> >
>> > On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
>> >>
>> >> In my case, it was straightforward: the user is considered to be
>> >> "still editing" if they have a browser window open to the edit page
>> >> for the object in question; if they navigate away from that page,
the
>> >> system considers their edit session over.
>> >>
>> >> Robert
>> >>
>> >>
>> >> On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
>> >>
>> >> > Hi Robert
>> >> >
>> >> > I like your idea, "you say that periodic ajax calls are sent to
the
>> >> > server to inform of the fact that the user is still editing" how
>> >> > exactly do you track if a user is still editing?
>> >> >
>> >> > Robert Zeigler wrote:
>> >> >> The main problem with using a session timeout for the lock is
that
>> >> >> it doesn't allow you to detect events where a user starts to edit
>> >> >> an object, does not finish, but remains active in the webapp; the
>> >> >> session won't die, and neither will your lock. You have to
>> >> >> incorporate time at least to some degree. I implemented similar
>> >> >> functionality in an application recently, but used a bit of ajax
>> >> >> magic to ensure that the lock was held for exactly as long as it
>> >> >> needed to be and no longer (while the user is editing the object,
>> >> >> periodic ajax calls are sent to the server to inform of the fact
>> >> >> that the user is still editing; if the user saves, the lock is
>> >> >> released; if the user moves to a different portion of the webapp
>> >> >> without saving or canceling the lock, the lock expires since
there
>> >> >> are no more ajax calls to keep the lock valid)
>> >> >>
>> >> >> Robert
>> >> >>
>> >> >> On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
>> >> >>
>> >> >>> I don't think the benefits justify the effort involved to
>> >> >>> maintain all those timestamps, its a bit too complex. Perhaps
its
>> >> >>> better to stick to a single table as well... rather write the
>> >> >>> session id into the database to checkout a customer record.
>> >> >>>
>> >> >>> Allow updates to a customer record if its not checked out, and
>> >> >>> this way you have no worries about lock expiration etc.
>> >> >>>
>> >> >>> You should maintain an ASO that tracks all active sessions by
>> >> >>> session id. Once a user queries for a customer record that has
>> >> >>> been checked out, if the session ID still exists in the ASO,
then
>> >> >>> refuse update access and grant only read access, simple and
>> >> >>> elegant. Once the user saves successfully release the lock in
the
>> >> >>> database. if a session is interrupted for whatever reason, then
>> >> >>> using a session timeout of 20 or 30 minutes and a session
>> >> >>> listener you clean up removing the session ID from the ASO and
>> >> >>> database... so you are well covered. I am no guru like some of
>> >> >>> these other guys, but this works for me and its nice and
>> >> >>> simple... here is a brief implementation outline:
>> >> >>>
>> >> >>> public class ApplicationManager {
>> >> >>>
>> >> >>> /** variable to store the singleton ApplicationManager */
>> >> >>> private static final ApplicationManager
>> >> >>> applicationManagerInstance_ = new ApplicationManager();
>> >> >>>
>> >> >>> /** Hashtable containing visit history objects.
is
>> >> >>> the sessionid and the Visit Object */
>> >> >>> private static ConcurrentHashMap visitHistory_ =
>> >> >>> new ConcurrentHashMap();
>> >> >>>
>> >> >>> /** @return the ApplicationManager instance */
>> >> >>> public synchronized static ApplicationManager getInstance(){
>> >> >>> return applicationManagerInstance_;
>> >> >>> }
>> >> >>>
>> >> >>> }
>> >> >>>
>> >> >>> public class SessionMonitor implements HttpSessionListener {
>> >> >>>
>> >> >>> /** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
>> >> >>> (javax.servlet.http.HttpSessionEvent) */
>> >> >>> public void sessionDestroyed(HttpSessionEvent event) {
>> >> >>> String sid = event.getSession().getId();
>> >> >
Re: Record locking
Andrea,
You can do this If you create a state object that has an application
scope... you can wire your session listener to it to add and remove the
session id's.
Andrea Chiumenti wrote:
But session is user specific and you want to lock the record accross the
application, how whould you do this ?
On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
Actually, no, if the browser dies, the record won't stay locked.
The updating happens from the edit page; if the browser crashes,
there's no edit page, so no updating, so the lock expires.
Cheers,
Robert
On Feb 21, 2007, at 2/214:03 AM , Andrea Chiumenti wrote:
> ... But if the browser dies for some reason (very frequent
> especially with
> MS products), then the record will remain locked, the only
> possibility with
> this solution would be to add a locking timeout with application
> scope.
>
> On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
>>
>> In my case, it was straightforward: the user is considered to be
>> "still editing" if they have a browser window open to the edit page
>> for the object in question; if they navigate away from that page, the
>> system considers their edit session over.
>>
>> Robert
>>
>>
>> On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
>>
>> > Hi Robert
>> >
>> > I like your idea, "you say that periodic ajax calls are sent to the
>> > server to inform of the fact that the user is still editing" how
>> > exactly do you track if a user is still editing?
>> >
>> > Robert Zeigler wrote:
>> >> The main problem with using a session timeout for the lock is that
>> >> it doesn't allow you to detect events where a user starts to edit
>> >> an object, does not finish, but remains active in the webapp; the
>> >> session won't die, and neither will your lock. You have to
>> >> incorporate time at least to some degree. I implemented similar
>> >> functionality in an application recently, but used a bit of ajax
>> >> magic to ensure that the lock was held for exactly as long as it
>> >> needed to be and no longer (while the user is editing the object,
>> >> periodic ajax calls are sent to the server to inform of the fact
>> >> that the user is still editing; if the user saves, the lock is
>> >> released; if the user moves to a different portion of the webapp
>> >> without saving or canceling the lock, the lock expires since there
>> >> are no more ajax calls to keep the lock valid)
>> >>
>> >> Robert
>> >>
>> >> On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
>> >>
>> >>> I don't think the benefits justify the effort involved to
>> >>> maintain all those timestamps, its a bit too complex. Perhaps its
>> >>> better to stick to a single table as well... rather write the
>> >>> session id into the database to checkout a customer record.
>> >>>
>> >>> Allow updates to a customer record if its not checked out, and
>> >>> this way you have no worries about lock expiration etc.
>> >>>
>> >>> You should maintain an ASO that tracks all active sessions by
>> >>> session id. Once a user queries for a customer record that has
>> >>> been checked out, if the session ID still exists in the ASO, then
>> >>> refuse update access and grant only read access, simple and
>> >>> elegant. Once the user saves successfully release the lock in the
>> >>> database. if a session is interrupted for whatever reason, then
>> >>> using a session timeout of 20 or 30 minutes and a session
>> >>> listener you clean up removing the session ID from the ASO and
>> >>> database... so you are well covered. I am no guru like some of
>> >>> these other guys, but this works for me and its nice and
>> >>> simple... here is a brief implementation outline:
>> >>>
>> >>> public class ApplicationManager {
>> >>>
>> >>> /** variable to store the singleton ApplicationManager */
>> >>> private static final ApplicationManager
>> >>> applicationManagerInstance_ = new ApplicationManager();
>> >>>
>> >>> /** Hashtable containing visit history objects. is
>> >>> the sessionid and the Visit Object */
>> >>> private static ConcurrentHashMap visitHistory_ =
>> >>> new ConcurrentHashMap();
>> >>>
>> >>> /** @return the ApplicationManager instance */
>> >>> public synchronized static ApplicationManager getInstance(){
>> >>> return applicationManagerInstance_;
>> >>> }
>> >>>
>> >>> }
>> >>>
>> >>> public class SessionMonitor implements HttpSessionListener {
>> >>>
>> >>> /** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
>> >>> (javax.servlet.http.HttpSessionEvent) */
>> >>> public void sessionDestroyed(HttpSessionEvent event) {
>> >>> String sid = event.getSession().getId();
>> >>> ApplicationManager manager = ApplicationManager.getInstance();
>> >>> manager.removeUserSession(sid);
>> >>> }
>> >>>
>> >>>
>> >>> Hivemodule.xml:
>> >>>
>> >>> > id="tapestry.state.ApplicationObjects">
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> > id="tapestry.state.ApplicationObjects">
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> cheers,
>> >>> Peter
>> >>>
>> >
Problem with including static javascript file
hi all, i'm not able to include a static javascript file into my page. could someone point me the right way how can i include a static javascript file into my page when using the @Body and @Shell component? thats what i have so far: .script file located at WEB-INF/web:myinit(); static.js is located : WEB-INF/web/static.js the rendered page has following url: i even tried to put into the classpath but with no success. the path of static.js always gets the "web" prefix (folder of my .script file ) thanks kris - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
OT: sourceforge svn browse
Hello, I'm currently in a condition where I'm not able to get files from the sf.ne svn of my project. Is any tools out there that can download files from svn browse of sf.net ? kiuma
Re: Record locking
But session is user specific and you want to lock the record accross the
application, how whould you do this ?
On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
Actually, no, if the browser dies, the record won't stay locked.
The updating happens from the edit page; if the browser crashes,
there's no edit page, so no updating, so the lock expires.
Cheers,
Robert
On Feb 21, 2007, at 2/214:03 AM , Andrea Chiumenti wrote:
> ... But if the browser dies for some reason (very frequent
> especially with
> MS products), then the record will remain locked, the only
> possibility with
> this solution would be to add a locking timeout with application
> scope.
>
> On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
>>
>> In my case, it was straightforward: the user is considered to be
>> "still editing" if they have a browser window open to the edit page
>> for the object in question; if they navigate away from that page, the
>> system considers their edit session over.
>>
>> Robert
>>
>>
>> On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
>>
>> > Hi Robert
>> >
>> > I like your idea, "you say that periodic ajax calls are sent to the
>> > server to inform of the fact that the user is still editing" how
>> > exactly do you track if a user is still editing?
>> >
>> > Robert Zeigler wrote:
>> >> The main problem with using a session timeout for the lock is that
>> >> it doesn't allow you to detect events where a user starts to edit
>> >> an object, does not finish, but remains active in the webapp; the
>> >> session won't die, and neither will your lock. You have to
>> >> incorporate time at least to some degree. I implemented similar
>> >> functionality in an application recently, but used a bit of ajax
>> >> magic to ensure that the lock was held for exactly as long as it
>> >> needed to be and no longer (while the user is editing the object,
>> >> periodic ajax calls are sent to the server to inform of the fact
>> >> that the user is still editing; if the user saves, the lock is
>> >> released; if the user moves to a different portion of the webapp
>> >> without saving or canceling the lock, the lock expires since there
>> >> are no more ajax calls to keep the lock valid)
>> >>
>> >> Robert
>> >>
>> >> On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
>> >>
>> >>> I don't think the benefits justify the effort involved to
>> >>> maintain all those timestamps, its a bit too complex. Perhaps its
>> >>> better to stick to a single table as well... rather write the
>> >>> session id into the database to checkout a customer record.
>> >>>
>> >>> Allow updates to a customer record if its not checked out, and
>> >>> this way you have no worries about lock expiration etc.
>> >>>
>> >>> You should maintain an ASO that tracks all active sessions by
>> >>> session id. Once a user queries for a customer record that has
>> >>> been checked out, if the session ID still exists in the ASO, then
>> >>> refuse update access and grant only read access, simple and
>> >>> elegant. Once the user saves successfully release the lock in the
>> >>> database. if a session is interrupted for whatever reason, then
>> >>> using a session timeout of 20 or 30 minutes and a session
>> >>> listener you clean up removing the session ID from the ASO and
>> >>> database... so you are well covered. I am no guru like some of
>> >>> these other guys, but this works for me and its nice and
>> >>> simple... here is a brief implementation outline:
>> >>>
>> >>> public class ApplicationManager {
>> >>>
>> >>> /** variable to store the singleton ApplicationManager */
>> >>> private static final ApplicationManager
>> >>> applicationManagerInstance_ = new ApplicationManager();
>> >>>
>> >>> /** Hashtable containing visit history objects. is
>> >>> the sessionid and the Visit Object */
>> >>> private static ConcurrentHashMap visitHistory_ =
>> >>> new ConcurrentHashMap();
>> >>>
>> >>> /** @return the ApplicationManager instance */
>> >>> public synchronized static ApplicationManager getInstance(){
>> >>> return applicationManagerInstance_;
>> >>> }
>> >>>
>> >>> }
>> >>>
>> >>> public class SessionMonitor implements HttpSessionListener {
>> >>>
>> >>> /** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
>> >>> (javax.servlet.http.HttpSessionEvent) */
>> >>> public void sessionDestroyed(HttpSessionEvent event) {
>> >>> String sid = event.getSession().getId();
>> >>> ApplicationManager manager = ApplicationManager.getInstance();
>> >>> manager.removeUserSession(sid);
>> >>> }
>> >>>
>> >>>
>> >>> Hivemodule.xml:
>> >>>
>> >>> > id="tapestry.state.ApplicationObjects">
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> > id="tapestry.state.ApplicationObjects">
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> cheers,
>> >>> Peter
>> >>>
>> >>> Murray Collingwood wrote:
>> Wow - what a lot of responses.
>>
>> First a little more detail - use case (for example):
>>
>> Take a customer record, a basic record ha
Re: Record locking
To clarify, by "updating" I'm referring to the ajax notifications
that the user is still editing the object.
Robert
On Feb 21, 2007, at 2/215:50 AM , Robert Zeigler wrote:
Actually, no, if the browser dies, the record won't stay locked.
The updating happens from the edit page; if the browser crashes,
there's no edit page, so no updating, so the lock expires.
Cheers,
Robert
On Feb 21, 2007, at 2/214:03 AM , Andrea Chiumenti wrote:
... But if the browser dies for some reason (very frequent
especially with
MS products), then the record will remain locked, the only
possibility with
this solution would be to add a locking timeout with application
scope.
On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
In my case, it was straightforward: the user is considered to be
"still editing" if they have a browser window open to the edit page
for the object in question; if they navigate away from that page,
the
system considers their edit session over.
Robert
On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
> Hi Robert
>
> I like your idea, "you say that periodic ajax calls are sent to
the
> server to inform of the fact that the user is still editing" how
> exactly do you track if a user is still editing?
>
> Robert Zeigler wrote:
>> The main problem with using a session timeout for the lock is
that
>> it doesn't allow you to detect events where a user starts to edit
>> an object, does not finish, but remains active in the webapp; the
>> session won't die, and neither will your lock. You have to
>> incorporate time at least to some degree. I implemented similar
>> functionality in an application recently, but used a bit of ajax
>> magic to ensure that the lock was held for exactly as long as it
>> needed to be and no longer (while the user is editing the object,
>> periodic ajax calls are sent to the server to inform of the fact
>> that the user is still editing; if the user saves, the lock is
>> released; if the user moves to a different portion of the webapp
>> without saving or canceling the lock, the lock expires since
there
>> are no more ajax calls to keep the lock valid)
>>
>> Robert
>>
>> On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
>>
>>> I don't think the benefits justify the effort involved to
>>> maintain all those timestamps, its a bit too complex. Perhaps
its
>>> better to stick to a single table as well... rather write the
>>> session id into the database to checkout a customer record.
>>>
>>> Allow updates to a customer record if its not checked out, and
>>> this way you have no worries about lock expiration etc.
>>>
>>> You should maintain an ASO that tracks all active sessions by
>>> session id. Once a user queries for a customer record that has
>>> been checked out, if the session ID still exists in the ASO,
then
>>> refuse update access and grant only read access, simple and
>>> elegant. Once the user saves successfully release the lock in
the
>>> database. if a session is interrupted for whatever reason, then
>>> using a session timeout of 20 or 30 minutes and a session
>>> listener you clean up removing the session ID from the ASO and
>>> database... so you are well covered. I am no guru like some of
>>> these other guys, but this works for me and its nice and
>>> simple... here is a brief implementation outline:
>>>
>>> public class ApplicationManager {
>>>
>>> /** variable to store the singleton ApplicationManager */
>>> private static final ApplicationManager
>>> applicationManagerInstance_ = new ApplicationManager();
>>>
>>> /** Hashtable containing visit history objects.
is
>>> the sessionid and the Visit Object */
>>> private static ConcurrentHashMap visitHistory_ =
>>> new ConcurrentHashMap();
>>>
>>> /** @return the ApplicationManager instance */
>>> public synchronized static ApplicationManager getInstance(){
>>> return applicationManagerInstance_;
>>> }
>>>
>>> }
>>>
>>> public class SessionMonitor implements HttpSessionListener {
>>>
>>> /** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
>>> (javax.servlet.http.HttpSessionEvent) */
>>> public void sessionDestroyed(HttpSessionEvent event) {
>>> String sid = event.getSession().getId();
>>> ApplicationManager manager = ApplicationManager.getInstance();
>>> manager.removeUserSession(sid);
>>> }
>>>
>>>
>>> Hivemodule.xml:
>>>
>>> id="tapestry.state.ApplicationObjects">
>>>
>>>
>>>
>>>
>>>
>>> id="tapestry.state.ApplicationObjects">
>>>
>>>
>>>
>>>
>>>
>>> cheers,
>>> Peter
>>>
>>> Murray Collingwood wrote:
Wow - what a lot of responses.
First a little more detail - use case (for example):
Take a customer record, a basic record has previously been
created and the
customer has completed some forms so we are now wanting to
complete all of the
details about contact information, financial details, key
assets, health
information, etc, etc. The system relies on a number of
classification
Re: Record locking
Actually, no, if the browser dies, the record won't stay locked.
The updating happens from the edit page; if the browser crashes,
there's no edit page, so no updating, so the lock expires.
Cheers,
Robert
On Feb 21, 2007, at 2/214:03 AM , Andrea Chiumenti wrote:
... But if the browser dies for some reason (very frequent
especially with
MS products), then the record will remain locked, the only
possibility with
this solution would be to add a locking timeout with application
scope.
On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
In my case, it was straightforward: the user is considered to be
"still editing" if they have a browser window open to the edit page
for the object in question; if they navigate away from that page, the
system considers their edit session over.
Robert
On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
> Hi Robert
>
> I like your idea, "you say that periodic ajax calls are sent to the
> server to inform of the fact that the user is still editing" how
> exactly do you track if a user is still editing?
>
> Robert Zeigler wrote:
>> The main problem with using a session timeout for the lock is that
>> it doesn't allow you to detect events where a user starts to edit
>> an object, does not finish, but remains active in the webapp; the
>> session won't die, and neither will your lock. You have to
>> incorporate time at least to some degree. I implemented similar
>> functionality in an application recently, but used a bit of ajax
>> magic to ensure that the lock was held for exactly as long as it
>> needed to be and no longer (while the user is editing the object,
>> periodic ajax calls are sent to the server to inform of the fact
>> that the user is still editing; if the user saves, the lock is
>> released; if the user moves to a different portion of the webapp
>> without saving or canceling the lock, the lock expires since there
>> are no more ajax calls to keep the lock valid)
>>
>> Robert
>>
>> On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
>>
>>> I don't think the benefits justify the effort involved to
>>> maintain all those timestamps, its a bit too complex. Perhaps its
>>> better to stick to a single table as well... rather write the
>>> session id into the database to checkout a customer record.
>>>
>>> Allow updates to a customer record if its not checked out, and
>>> this way you have no worries about lock expiration etc.
>>>
>>> You should maintain an ASO that tracks all active sessions by
>>> session id. Once a user queries for a customer record that has
>>> been checked out, if the session ID still exists in the ASO, then
>>> refuse update access and grant only read access, simple and
>>> elegant. Once the user saves successfully release the lock in the
>>> database. if a session is interrupted for whatever reason, then
>>> using a session timeout of 20 or 30 minutes and a session
>>> listener you clean up removing the session ID from the ASO and
>>> database... so you are well covered. I am no guru like some of
>>> these other guys, but this works for me and its nice and
>>> simple... here is a brief implementation outline:
>>>
>>> public class ApplicationManager {
>>>
>>> /** variable to store the singleton ApplicationManager */
>>> private static final ApplicationManager
>>> applicationManagerInstance_ = new ApplicationManager();
>>>
>>> /** Hashtable containing visit history objects. is
>>> the sessionid and the Visit Object */
>>> private static ConcurrentHashMap visitHistory_ =
>>> new ConcurrentHashMap();
>>>
>>> /** @return the ApplicationManager instance */
>>> public synchronized static ApplicationManager getInstance(){
>>> return applicationManagerInstance_;
>>> }
>>>
>>> }
>>>
>>> public class SessionMonitor implements HttpSessionListener {
>>>
>>> /** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
>>> (javax.servlet.http.HttpSessionEvent) */
>>> public void sessionDestroyed(HttpSessionEvent event) {
>>> String sid = event.getSession().getId();
>>> ApplicationManager manager = ApplicationManager.getInstance();
>>> manager.removeUserSession(sid);
>>> }
>>>
>>>
>>> Hivemodule.xml:
>>>
>>> id="tapestry.state.ApplicationObjects">
>>>
>>>
>>>
>>>
>>>
>>> id="tapestry.state.ApplicationObjects">
>>>
>>>
>>>
>>>
>>>
>>> cheers,
>>> Peter
>>>
>>> Murray Collingwood wrote:
Wow - what a lot of responses.
First a little more detail - use case (for example):
Take a customer record, a basic record has previously been
created and the
customer has completed some forms so we are now wanting to
complete all of the
details about contact information, financial details, key
assets, health
information, etc, etc. The system relies on a number of
classifications which
need to be looked up, anyways, editing this record can take upto
20 minutes. The size of this record certainly justifies breaking
it up into a number of
smaller records store
Re: Record locking
If the browser dies, then the session will timeout. The record will
not stay locked (if you just keep an in-memory record of who is
editing what). You could use a "do you want to save your changes"
notification (a la GMail and others) to either save the data or send a
request to clear the lock when they leave the edit screen.
On 2/21/07, Andrea Chiumenti <[EMAIL PROTECTED]> wrote:
... But if the browser dies for some reason (very frequent especially with
MS products), then the record will remain locked, the only possibility with
this solution would be to add a locking timeout with application scope.
On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
>
> In my case, it was straightforward: the user is considered to be
> "still editing" if they have a browser window open to the edit page
> for the object in question; if they navigate away from that page, the
> system considers their edit session over.
>
> Robert
>
>
> On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
>
> > Hi Robert
> >
> > I like your idea, "you say that periodic ajax calls are sent to the
> > server to inform of the fact that the user is still editing" how
> > exactly do you track if a user is still editing?
> >
> > Robert Zeigler wrote:
> >> The main problem with using a session timeout for the lock is that
> >> it doesn't allow you to detect events where a user starts to edit
> >> an object, does not finish, but remains active in the webapp; the
> >> session won't die, and neither will your lock. You have to
> >> incorporate time at least to some degree. I implemented similar
> >> functionality in an application recently, but used a bit of ajax
> >> magic to ensure that the lock was held for exactly as long as it
> >> needed to be and no longer (while the user is editing the object,
> >> periodic ajax calls are sent to the server to inform of the fact
> >> that the user is still editing; if the user saves, the lock is
> >> released; if the user moves to a different portion of the webapp
> >> without saving or canceling the lock, the lock expires since there
> >> are no more ajax calls to keep the lock valid)
> >>
> >> Robert
> >>
> >> On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
> >>
> >>> I don't think the benefits justify the effort involved to
> >>> maintain all those timestamps, its a bit too complex. Perhaps its
> >>> better to stick to a single table as well... rather write the
> >>> session id into the database to checkout a customer record.
> >>>
> >>> Allow updates to a customer record if its not checked out, and
> >>> this way you have no worries about lock expiration etc.
> >>>
> >>> You should maintain an ASO that tracks all active sessions by
> >>> session id. Once a user queries for a customer record that has
> >>> been checked out, if the session ID still exists in the ASO, then
> >>> refuse update access and grant only read access, simple and
> >>> elegant. Once the user saves successfully release the lock in the
> >>> database. if a session is interrupted for whatever reason, then
> >>> using a session timeout of 20 or 30 minutes and a session
> >>> listener you clean up removing the session ID from the ASO and
> >>> database... so you are well covered. I am no guru like some of
> >>> these other guys, but this works for me and its nice and
> >>> simple... here is a brief implementation outline:
> >>>
> >>> public class ApplicationManager {
> >>>
> >>> /** variable to store the singleton ApplicationManager */
> >>> private static final ApplicationManager
> >>> applicationManagerInstance_ = new ApplicationManager();
> >>>
> >>> /** Hashtable containing visit history objects. is
> >>> the sessionid and the Visit Object */
> >>> private static ConcurrentHashMap visitHistory_ =
> >>> new ConcurrentHashMap();
> >>>
> >>> /** @return the ApplicationManager instance */
> >>> public synchronized static ApplicationManager getInstance(){
> >>> return applicationManagerInstance_;
> >>> }
> >>>
> >>> }
> >>>
> >>> public class SessionMonitor implements HttpSessionListener {
> >>>
> >>> /** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
> >>> (javax.servlet.http.HttpSessionEvent) */
> >>> public void sessionDestroyed(HttpSessionEvent event) {
> >>> String sid = event.getSession().getId();
> >>> ApplicationManager manager = ApplicationManager.getInstance();
> >>> manager.removeUserSession(sid);
> >>> }
> >>>
> >>>
> >>> Hivemodule.xml:
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> cheers,
> >>> Peter
> >>>
> >>> Murray Collingwood wrote:
> Wow - what a lot of responses.
>
> First a little more detail - use case (for example):
>
> Take a customer record, a basic record has previously been
> created and the
> customer has completed some forms so we are now wanting to
> complete all of the
> details about contact information, financial details, key
> assets, health
> information, etc, etc.
T5 BeanEditForm screencast
Hi Howard, T5 looks very good. I would like to ask about the screencast #4 where you presented BeanEditForm component. For validation there is the annotation, which causes me problems. I don't want to annotade my business objects with tapestry annotation (they start to depend on tapestry). At the moment we are using OVal (oval.sf.net) for the Design by Contract and the oval annotations carry the same information as the tapestry validate annotation. So will it be easy to use for validation these annotations (instead of the tapestry one)? Meaning if you are thinking about some kind of pluggable validation framework ... or at least pluggable validation definition framework. Thanks -- Jiří Mareš (mailto:[EMAIL PROTECTED]) ČSAD SVT Praha, s.r.o. (http://www.svt.cz) Czech Republic - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Where am I going wrong ?
Brilliant... thanks Shing!
Shing Hing Man wrote:
Try removing in
org.apache.tapestry.ApplicationServlet
1
myParam
777
And add the following to Web.xml.
myParam
Shing
--- Peter Stavrinides <[EMAIL PROTECTED]>
wrote:
In Web.xml I have defined an initialization
parameter,
IRM
org.apache.tapestry.ApplicationServlet
1
myParam
777
I tried to get to it with the following:
@InjectObject("service:tapestry.globals.ServletContext")
public abstract ServletContext getServletContext();
getServletContext().getInitParameter("myParam");
but its always null, what am I missing?
Thanks
Peter
--
Peter Stavrinides
Albourne Partners (Cyprus) Ltd
Tel: +357 22 750652
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--
Peter Stavrinides
Albourne Partners (Cyprus) Ltd
Tel: +357 22 750652
If you are not an intended recipient of this e-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, retain or redistribute it. Please visit http://www.albourne.com/email.html for important additional terms relating to this e-mail.
-
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Re: Where am I going wrong ?
Try removing in
org.apache.tapestry.ApplicationServlet
1
myParam
777
And add the following to Web.xml.
myParam
Shing
--- Peter Stavrinides <[EMAIL PROTECTED]>
wrote:
> In Web.xml I have defined an initialization
> parameter,
>
>
> IRM
>
>
org.apache.tapestry.ApplicationServlet
> 1
>
> myParam
> 777
>
>
>
> I tried to get to it with the following:
>
>
@InjectObject("service:tapestry.globals.ServletContext")
> public abstract ServletContext getServletContext();
>
> getServletContext().getInitParameter("myParam");
>
> but its always null, what am I missing?
>
> Thanks
> Peter
>
>
>
>
>
>
>
> --
> Peter Stavrinides
> Albourne Partners (Cyprus) Ltd
> Tel: +357 22 750652
>
> If you are not an intended recipient of this e-mail,
> please notify the sender, delete it and do not read,
> act upon, print, disclose, copy, retain or
> redistribute it. Please visit
> http://www.albourne.com/email.html for important
> additional terms relating to this e-mail.
>
>
Home page :
http://uk.geocities.com/matmsh/index.html
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and free. http://uk.docs.yahoo.com/trueswitch2.html
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Re: Record locking
... But if the browser dies for some reason (very frequent especially with
MS products), then the record will remain locked, the only possibility with
this solution would be to add a locking timeout with application scope.
On 2/21/07, Robert Zeigler <[EMAIL PROTECTED]> wrote:
In my case, it was straightforward: the user is considered to be
"still editing" if they have a browser window open to the edit page
for the object in question; if they navigate away from that page, the
system considers their edit session over.
Robert
On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
> Hi Robert
>
> I like your idea, "you say that periodic ajax calls are sent to the
> server to inform of the fact that the user is still editing" how
> exactly do you track if a user is still editing?
>
> Robert Zeigler wrote:
>> The main problem with using a session timeout for the lock is that
>> it doesn't allow you to detect events where a user starts to edit
>> an object, does not finish, but remains active in the webapp; the
>> session won't die, and neither will your lock. You have to
>> incorporate time at least to some degree. I implemented similar
>> functionality in an application recently, but used a bit of ajax
>> magic to ensure that the lock was held for exactly as long as it
>> needed to be and no longer (while the user is editing the object,
>> periodic ajax calls are sent to the server to inform of the fact
>> that the user is still editing; if the user saves, the lock is
>> released; if the user moves to a different portion of the webapp
>> without saving or canceling the lock, the lock expires since there
>> are no more ajax calls to keep the lock valid)
>>
>> Robert
>>
>> On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
>>
>>> I don't think the benefits justify the effort involved to
>>> maintain all those timestamps, its a bit too complex. Perhaps its
>>> better to stick to a single table as well... rather write the
>>> session id into the database to checkout a customer record.
>>>
>>> Allow updates to a customer record if its not checked out, and
>>> this way you have no worries about lock expiration etc.
>>>
>>> You should maintain an ASO that tracks all active sessions by
>>> session id. Once a user queries for a customer record that has
>>> been checked out, if the session ID still exists in the ASO, then
>>> refuse update access and grant only read access, simple and
>>> elegant. Once the user saves successfully release the lock in the
>>> database. if a session is interrupted for whatever reason, then
>>> using a session timeout of 20 or 30 minutes and a session
>>> listener you clean up removing the session ID from the ASO and
>>> database... so you are well covered. I am no guru like some of
>>> these other guys, but this works for me and its nice and
>>> simple... here is a brief implementation outline:
>>>
>>> public class ApplicationManager {
>>>
>>> /** variable to store the singleton ApplicationManager */
>>> private static final ApplicationManager
>>> applicationManagerInstance_ = new ApplicationManager();
>>>
>>> /** Hashtable containing visit history objects. is
>>> the sessionid and the Visit Object */
>>> private static ConcurrentHashMap visitHistory_ =
>>> new ConcurrentHashMap();
>>>
>>> /** @return the ApplicationManager instance */
>>> public synchronized static ApplicationManager getInstance(){
>>> return applicationManagerInstance_;
>>> }
>>>
>>> }
>>>
>>> public class SessionMonitor implements HttpSessionListener {
>>>
>>> /** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
>>> (javax.servlet.http.HttpSessionEvent) */
>>> public void sessionDestroyed(HttpSessionEvent event) {
>>> String sid = event.getSession().getId();
>>> ApplicationManager manager = ApplicationManager.getInstance();
>>> manager.removeUserSession(sid);
>>> }
>>>
>>>
>>> Hivemodule.xml:
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> cheers,
>>> Peter
>>>
>>> Murray Collingwood wrote:
Wow - what a lot of responses.
First a little more detail - use case (for example):
Take a customer record, a basic record has previously been
created and the
customer has completed some forms so we are now wanting to
complete all of the
details about contact information, financial details, key
assets, health
information, etc, etc. The system relies on a number of
classifications which
need to be looked up, anyways, editing this record can take upto
20 minutes. The size of this record certainly justifies breaking
it up into a number of
smaller records stored in separate tables, however the same
problem remains
because the user wants to see all of this information on 1
(scrollable) web
page, we are still holding a lock on the information for the
duration of the
request.
Potentially there are maybe 700 people who could be editing this
record for
different rea
Tapestry 5 NPE in PageTester
I'm running into a NullPointerException in PageTester if a element exists in the page template. Here's a snippet of the stack trace: Exception in thread "main" java.lang.NullPointerException at $Request_110d9536317.getContextPath($Request_110d9536317.java) at $Request_110d95362e3.getContextPath($Request_110d95362e3.java) at org.apache.tapestry.internal.services.ClasspathAssetAliasManagerImpl.toC lientURL(ClasspathAssetAliasManagerImpl.java:78) There's a little more info at https://issues.apache.org/jira/browse/TAPESTRY-1279 Is there a good way to debug a Javassist manipulated class? -Matt - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Record locking
In my case, it was straightforward: the user is considered to be
"still editing" if they have a browser window open to the edit page
for the object in question; if they navigate away from that page, the
system considers their edit session over.
Robert
On Feb 21, 2007, at 2/212:47 AM , Peter Stavrinides wrote:
Hi Robert
I like your idea, "you say that periodic ajax calls are sent to the
server to inform of the fact that the user is still editing" how
exactly do you track if a user is still editing?
Robert Zeigler wrote:
The main problem with using a session timeout for the lock is that
it doesn't allow you to detect events where a user starts to edit
an object, does not finish, but remains active in the webapp; the
session won't die, and neither will your lock. You have to
incorporate time at least to some degree. I implemented similar
functionality in an application recently, but used a bit of ajax
magic to ensure that the lock was held for exactly as long as it
needed to be and no longer (while the user is editing the object,
periodic ajax calls are sent to the server to inform of the fact
that the user is still editing; if the user saves, the lock is
released; if the user moves to a different portion of the webapp
without saving or canceling the lock, the lock expires since there
are no more ajax calls to keep the lock valid)
Robert
On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
I don't think the benefits justify the effort involved to
maintain all those timestamps, its a bit too complex. Perhaps its
better to stick to a single table as well... rather write the
session id into the database to checkout a customer record.
Allow updates to a customer record if its not checked out, and
this way you have no worries about lock expiration etc.
You should maintain an ASO that tracks all active sessions by
session id. Once a user queries for a customer record that has
been checked out, if the session ID still exists in the ASO, then
refuse update access and grant only read access, simple and
elegant. Once the user saves successfully release the lock in the
database. if a session is interrupted for whatever reason, then
using a session timeout of 20 or 30 minutes and a session
listener you clean up removing the session ID from the ASO and
database... so you are well covered. I am no guru like some of
these other guys, but this works for me and its nice and
simple... here is a brief implementation outline:
public class ApplicationManager {
/** variable to store the singleton ApplicationManager */
private static final ApplicationManager
applicationManagerInstance_ = new ApplicationManager();
/** Hashtable containing visit history objects. is
the sessionid and the Visit Object */
private static ConcurrentHashMap visitHistory_ =
new ConcurrentHashMap();
/** @return the ApplicationManager instance */
public synchronized static ApplicationManager getInstance(){
return applicationManagerInstance_;
}
}
public class SessionMonitor implements HttpSessionListener {
/** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
(javax.servlet.http.HttpSessionEvent) */
public void sessionDestroyed(HttpSessionEvent event) {
String sid = event.getSession().getId();
ApplicationManager manager = ApplicationManager.getInstance();
manager.removeUserSession(sid);
}
Hivemodule.xml:
cheers,
Peter
Murray Collingwood wrote:
Wow - what a lot of responses.
First a little more detail - use case (for example):
Take a customer record, a basic record has previously been
created and the
customer has completed some forms so we are now wanting to
complete all of the
details about contact information, financial details, key
assets, health
information, etc, etc. The system relies on a number of
classifications which
need to be looked up, anyways, editing this record can take upto
20 minutes. The size of this record certainly justifies breaking
it up into a number of
smaller records stored in separate tables, however the same
problem remains
because the user wants to see all of this information on 1
(scrollable) web
page, we are still holding a lock on the information for the
duration of the
request.
Potentially there are maybe 700 people who could be editing this
record for
different reasons. Accuracy of the information is critical - we
don't want
personal details being sent to a neighbour.
The nature of the application means that users will be reviewing
a record each
year, and if any changes are made they are often made to the
same record around
the same time of the year - increasing the possibility of two
people wanting to
edit the record at the same time.
Besides all of the above, the user has asked for exclusive
editing of a record -
such that other users can still read the existing record but
nobody else can
update the record while it is locked. The user understands the
conce
Re: New line in properties file
A backslash \ ? Shing --- Peter Dawn <[EMAIL PROTECTED]> wrote: > guys, > > within my properties file, there is certain text > which i want to flow > over onto multiple lines. so how can i specify a new > line (aka enter) > within the properties file, so that the text breaks > up there and > starts at the next line when its displayed. > > thanks. > > - > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > > Home page : http://uk.geocities.com/matmsh/index.html ___ All New Yahoo! Mail Tired of unwanted email come-ons? Let our SpamGuard protect you. http://uk.docs.yahoo.com/nowyoucan.html - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Programmatic DirectLink with updateComponents and parameter
Hi,
I've seen some examples on how to generate a DirectLink programmatic but
so far, I couldn't get it to work. Especially because I need it to
update
a component via ajax.
Quick overview: I parse external static html text with fake links and
replace those links with the correct versions. One of them is a [Buy]
button
and it needs to call a listener to add the item to the database and
then it
refreshes the view on the page via ajax.
On my normal Tapestry pages, this looks like:
and this works fine. Now, on my "content" page which will read in a
specific
html page via a given name, I do a search/replace sweep and there, I
need to
do the same (the basket component is in my Border).
What I have done is to have a fake_buy component similar to the one
above in
my content page and a property 'item_id' which is referred by
fake_by. I was
able to do this:
setItem_id(linkParam);
DirectLink fakeBuy = (DirectLink)getComponent("fake_buy");
ILink fakeBuyLink = fakeBuy.getLink(getPage().getRequestCycle());
link = fakeBuyLink.getURL();
But I am not sure if this is the right way to do it because I fear side
effects.
Andreas Pardeike
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: Record locking
Hi Robert
I like your idea, "you say that periodic ajax calls are sent to the
server to inform of the fact that the user is still editing" how exactly
do you track if a user is still editing?
Robert Zeigler wrote:
The main problem with using a session timeout for the lock is that it
doesn't allow you to detect events where a user starts to edit an
object, does not finish, but remains active in the webapp; the session
won't die, and neither will your lock. You have to incorporate time at
least to some degree. I implemented similar functionality in an
application recently, but used a bit of ajax magic to ensure that the
lock was held for exactly as long as it needed to be and no longer
(while the user is editing the object, periodic ajax calls are sent to
the server to inform of the fact that the user is still editing; if
the user saves, the lock is released; if the user moves to a different
portion of the webapp without saving or canceling the lock, the lock
expires since there are no more ajax calls to keep the lock valid)
Robert
On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
I don't think the benefits justify the effort involved to maintain
all those timestamps, its a bit too complex. Perhaps its better to
stick to a single table as well... rather write the session id into
the database to checkout a customer record.
Allow updates to a customer record if its not checked out, and this
way you have no worries about lock expiration etc.
You should maintain an ASO that tracks all active sessions by session
id. Once a user queries for a customer record that has been checked
out, if the session ID still exists in the ASO, then refuse update
access and grant only read access, simple and elegant. Once the user
saves successfully release the lock in the database. if a session is
interrupted for whatever reason, then using a session timeout of 20
or 30 minutes and a session listener you clean up removing the
session ID from the ASO and database... so you are well covered. I am
no guru like some of these other guys, but this works for me and its
nice and simple... here is a brief implementation outline:
public class ApplicationManager {
/** variable to store the singleton ApplicationManager */
private static final ApplicationManager applicationManagerInstance_ =
new ApplicationManager();
/** Hashtable containing visit history objects. is the
sessionid and the Visit Object */
private static ConcurrentHashMap visitHistory_ = new
ConcurrentHashMap();
/** @return the ApplicationManager instance */
public synchronized static ApplicationManager getInstance(){
return applicationManagerInstance_;
}
}
public class SessionMonitor implements HttpSessionListener {
/** @see
javax.servlet.http.HttpSessionListener#sessionDestroyed(javax.servlet.http.HttpSessionEvent)
*/
public void sessionDestroyed(HttpSessionEvent event) {
String sid = event.getSession().getId();
ApplicationManager manager = ApplicationManager.getInstance();
manager.removeUserSession(sid);
}
Hivemodule.xml:
cheers,
Peter
Murray Collingwood wrote:
Wow - what a lot of responses.
First a little more detail - use case (for example):
Take a customer record, a basic record has previously been created
and the
customer has completed some forms so we are now wanting to complete
all of the
details about contact information, financial details, key assets,
health
information, etc, etc. The system relies on a number of
classifications which
need to be looked up, anyways, editing this record can take upto 20
minutes. The size of this record certainly justifies breaking it up
into a number of
smaller records stored in separate tables, however the same problem
remains
because the user wants to see all of this information on 1
(scrollable) web
page, we are still holding a lock on the information for the
duration of the
request.
Potentially there are maybe 700 people who could be editing this
record for
different reasons. Accuracy of the information is critical - we
don't want
personal details being sent to a neighbour.
The nature of the application means that users will be reviewing a
record each
year, and if any changes are made they are often made to the same
record around
the same time of the year - increasing the possibility of two people
wanting to
edit the record at the same time.
Besides all of the above, the user has asked for exclusive editing
of a record -
such that other users can still read the existing record but nobody
else can
update the record while it is locked. The user understands the
concept of
networks issues and broken connections and therefore accepts a
timeout condition
on the lock of say 20 minutes.
Next, how I will do this:
1. To establish a lock:
a. I need a LOCK table: foreign-key, timestamp, userid
b. In my Session I need a collection of timestamps
c. Create a timestamp value - add it to my collection of timestamps
d. Add a record to the LOC
Re: Record locking
The main problem with using a session timeout for the lock is that it
doesn't allow you to detect events where a user starts to edit an
object, does not finish, but remains active in the webapp; the
session won't die, and neither will your lock. You have to
incorporate time at least to some degree. I implemented similar
functionality in an application recently, but used a bit of ajax
magic to ensure that the lock was held for exactly as long as it
needed to be and no longer (while the user is editing the object,
periodic ajax calls are sent to the server to inform of the fact that
the user is still editing; if the user saves, the lock is released;
if the user moves to a different portion of the webapp without saving
or canceling the lock, the lock expires since there are no more ajax
calls to keep the lock valid)
Robert
On Feb 21, 2007, at 2/211:56 AM , Peter Stavrinides wrote:
I don't think the benefits justify the effort involved to maintain
all those timestamps, its a bit too complex. Perhaps its better to
stick to a single table as well... rather write the session id into
the database to checkout a customer record.
Allow updates to a customer record if its not checked out, and this
way you have no worries about lock expiration etc.
You should maintain an ASO that tracks all active sessions by
session id. Once a user queries for a customer record that has been
checked out, if the session ID still exists in the ASO, then refuse
update access and grant only read access, simple and elegant. Once
the user saves successfully release the lock in the database. if a
session is interrupted for whatever reason, then using a session
timeout of 20 or 30 minutes and a session listener you clean up
removing the session ID from the ASO and database... so you are
well covered. I am no guru like some of these other guys, but this
works for me and its nice and simple... here is a brief
implementation outline:
public class ApplicationManager {
/** variable to store the singleton ApplicationManager */
private static final ApplicationManager applicationManagerInstance_
= new ApplicationManager();
/** Hashtable containing visit history objects. is
the sessionid and the Visit Object */
private static ConcurrentHashMap visitHistory_ = new
ConcurrentHashMap();
/** @return the ApplicationManager instance */
public synchronized static ApplicationManager getInstance(){
return applicationManagerInstance_;
}
}
public class SessionMonitor implements HttpSessionListener {
/** @see javax.servlet.http.HttpSessionListener#sessionDestroyed
(javax.servlet.http.HttpSessionEvent) */
public void sessionDestroyed(HttpSessionEvent event) {
String sid = event.getSession().getId();
ApplicationManager manager = ApplicationManager.getInstance();
manager.removeUserSession(sid);
}
Hivemodule.xml:
cheers,
Peter
Murray Collingwood wrote:
Wow - what a lot of responses.
First a little more detail - use case (for example):
Take a customer record, a basic record has previously been created
and the
customer has completed some forms so we are now wanting to
complete all of the
details about contact information, financial details, key assets,
health
information, etc, etc. The system relies on a number of
classifications which
need to be looked up, anyways, editing this record can take upto
20 minutes. The size of this record certainly justifies breaking
it up into a number of
smaller records stored in separate tables, however the same
problem remains
because the user wants to see all of this information on 1
(scrollable) web
page, we are still holding a lock on the information for the
duration of the
request.
Potentially there are maybe 700 people who could be editing this
record for
different reasons. Accuracy of the information is critical - we
don't want
personal details being sent to a neighbour.
The nature of the application means that users will be reviewing a
record each
year, and if any changes are made they are often made to the same
record around
the same time of the year - increasing the possibility of two
people wanting to
edit the record at the same time.
Besides all of the above, the user has asked for exclusive editing
of a record -
such that other users can still read the existing record but
nobody else can
update the record while it is locked. The user understands the
concept of
networks issues and broken connections and therefore accepts a
timeout condition
on the lock of say 20 minutes.
Next, how I will do this:
1. To establish a lock:
a. I need a LOCK table: foreign-key, timestamp, userid
b. In my Session I need a collection of timestamps
c. Create a timestamp value - add it to my collection of timestamps
d. Add a record to the LOCK table using my timestamp value
e. Select from the lock table by foreign-key - if mine is the
only record then
read the record and begin editing, the lock was
Where am I going wrong ?
In Web.xml I have defined an initialization parameter,
IRM
org.apache.tapestry.ApplicationServlet
1
myParam
777
I tried to get to it with the following:
@InjectObject("service:tapestry.globals.ServletContext")
public abstract ServletContext getServletContext();
getServletContext().getInitParameter("myParam");
but its always null, what am I missing?
Thanks
Peter
--
Peter Stavrinides
Albourne Partners (Cyprus) Ltd
Tel: +357 22 750652
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Re: is there a way to programatically add the declaration of a components library ?
ok kiuma, I will have a look. Thanks. D. 2007/2/20, Andrea Chiumenti <[EMAIL PROTECTED]>: Ok I think that what you need is here www.jfly.org. ciao, kiuma On 2/20/07, Tapestry User List <[EMAIL PROTECTED]> wrote: > > Let me explain why I need that: > I'm developing web application with the notion of plugin. A plugin is > a set of tapestry pages which can refers components from a components > library which is also in the plugin. > I implemented the ITemplateSourceDelegate interface to find templates > from the plugin. > I also implemented the ISpecificationResolverDelegate interface to > find specification pages from the plugin. It works pretty good. > > Now, when a new plugin is installed in my web application, if the > plugin contains a components library, I need to declare it in the > application xml file. The problem is I can't mofify the application > xml file because it is in a war file. So I would like to add the > component library either dynamically or by externalizing the > application xml file outside the war file and link it. > > Hope it helps to understand my problem. > > D. > > 2007/2/20, Tapestry User List <[EMAIL PROTECTED]>: > > A way to resolve my problem would be to externalize the application > > xml file. Is there a way to link an application xml file outside the > > war ? So that I will be able to edit this file. > > > > Redeploy the war is not a issue if the application xml file is changed. > > > > D. > > > > 2007/2/20, Tapestry User List <[EMAIL PROTECTED]>: > > > Hi ! > > > > > > I'm developing a Tapestry application. For adding a component library, > > > I need to edit the application xml file. I need to add dynamically a > > > library at the start of the web application. Is there a way to do that > > > programatically without editing the application xml file? > > > > > > > > > > > "-//Apache Software Foundation//Tapestry Specification 4.0//EN" > > > "http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd";> > > > > > > > > > > > > specification-path="classpath:/org/apache/tapestry/contrib/Contrib.library"/> > > > specification-path="/net/sf/tacos/Tacos.library"/> > > > > > > > > > > > > > > > > > > > > > Thanks so much. > > > > > > D. > > > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
