6 Replies Latest reply on May 29, 2008 8:05 AM by rohanmars

    pageflow breaks ajax

    rohanmars
    rohanmars Mar 29, 2008 12:18 AM

      JBoss 4.2.2.GA
      Seam 2.0.1.GA


      When you use an ajax call like a4j:support from a page that is in a pageflow conversation the whole page is sent and rerendered. Defeats the whole point and I think it's a bug.


      I proved this by using a simple ajax page without a pageflow and it worked correctly. Then I started a simple pageflow as a start-state testpage then when the ajax call is made a full refresh is done.


      Any ideas on how to make this work.


      Rohan

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        • 1. Re: pageflow breaks ajax
          damianharvey.damianharvey.gmail.com
          damianharvey.damianharvey.gmail.com Mar 29, 2008 11:48 AM (in response to rohanmars)

          Show your page code containing the a4j:support tag.


          Cheers,


          Damian.

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          • 2. Re: pageflow breaks ajax
            rohanmars
            rohanmars Mar 29, 2008 7:26 PM (in response to rohanmars)

            basic page is: 


            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"

      xmlns:ui="http://java.sun.com/jsf/facelets"

      xmlns:f="http://java.sun.com/jsf/core"

      xmlns:h="http://java.sun.com/jsf/html"

      xmlns:c="http://java.sun.com/jstl/core"

      xmlns:rich="http://richfaces.ajax4jsf.org/rich"

      xmlns:a4j="http://richfaces.org/a4j">

<head>

    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>

</head>


<body>


        <h:form id="IndexForm">

       <h:inputText

                 value="#{signinAction.test}" size="35"

                 maxlength="50" required="true" requiredMessage="#{msgs.REQUIRED_FIELD}" label="Amount"

                  id="Amount">

                        <a4j:support event="onkeyup" eventsQueue="amount" requestDelay="1000" reRender="myvalue"/>

            </h:inputText>


        <h:outputText id="myvalue" value="value: #{signinAction.test}----"/>

        </h:form>


</body>

</html>



            then use a page flow: 


            <?xml version="1.0"?>

<pageflow-definition

     xmlns="http://jboss.com/products/seam/pageflow"

     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation="http://jboss.com/products/seam/pageflow http://jboss.com/products/seam/pageflow-2.0.xsd"

      name="test">


   <start-state name="start">

      <transition to="test"/>

   </start-state>


   <page name="test" view-id="/main/test.xhtml">

      <redirect/>

      <transition to="test"/>

   </page>

   


</pageflow-definition>



            backed by a bean: 


            @Stateful

@Local(Signin.class)

@Name("signinAction")

@TransactionAttribute(TransactionAttributeType.SUPPORTS)

@SuppressWarnings("unchecked")

public class SigninAction implements Signin


    public String getTest()

    {

        return mValue;

    }

    public void setTest(String pvalue)

    {

        mValue = pvalue;

    }


    @Begin(pageflow="test", nested=true)

    public void testStart()

    {}

}



            and called from another page: 


            <h:commandLink action="#{signinAction.testStart}">

     <h:outputText value="Test"/>

</h:commandLink>




            if you drectly access the page then all is okay, however if you access from pageflow then a full page refresh is done on each keyup.


            additionally, I tried with the latest 2.1 snapshot and jbpm 3.2.2 with the same effect.


            tried both client and server saving_state_method (s). also tried a4j regions and outputPanels.


            Rohan

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            • 3. Re: pageflow breaks ajax
              barbacena
              barbacena Mar 29, 2008 9:25 PM (in response to rohanmars)

              Try use the limitToList=true and ajaxSingle=true at a4j:support.
              If it is a validation action you can also use bypassUpdates=false.

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              • 4. Re: pageflow breaks ajax
                barbacena
                barbacena Mar 29, 2008 9:26 PM (in response to rohanmars)

                Sorry, for validation is bypassUpdates=true.

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                • 5. Re: pageflow breaks ajax
                  pmuir
                  pmuir Mar 30, 2008 12:15 AM (in response to rohanmars)

                  I think I've heard of this before. Please create a bug in JIRA, and attach an example we can use to reproduce.

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                  • 6. Re: pageflow breaks ajax
                    rohanmars
                    rohanmars May 29, 2008 8:05 AM (in response to rohanmars)

                    FYI: Found the problem.


                    The problem was I the unamed transition in the page, like: 


                    <page name="billercode" view-id="/bill/billerCode.xhtml">

      <redirect/>

      <transition to="billercode"/>



                    Relic from my previous app version (not sure why I put these back in seam 1.x  ...

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