[jboss-user] [JBoss Seam] - Re: Why cannot I run more than one concurrent conversation S

[gus888]

Hi Pete,

Thank you so much for your patiently responding my questions. In fact, I have an idea to use conversation browse bean. User can browsing the search results, then he/she can either create a new instance or edit an existing instance through another conversation bean from the browsing page. After he/she finishes, the user can go back the previous conversation browse bean. However, I couldn't get it work. The codes are as following. Thank you very much in advance.
StudyBrowserAction.java at Stateful
  | @Name("studyBrowser")
  | @Scope(ScopeType.CONVERSATION)
  | public class StudyBrowserAction implements StudyBrowser {
  | 	...
  | 
  |    @Begin (id="browing-study")
  |    public void find() {
  |       page = 0;
  |       queryStudy();
  |    }
  | 
  |    @Begin(join=true)
  |    public void nextPage() {
  |       page++;
  |       queryStudy();
  |    }
  | 
  |    @Begin(join=true)
  |    public void previousPage() {
  |       page--;
  |       queryStudy();
  |    }
  | 
  |    private void queryStudy() {
  | 	...
  |    }
  | 
  |    @Remove
  |    public void destroy() {}
  | }
  | 
StudyEditorAction.java

  | @Stateful
  | @Name("studyEditor")
  | @Scope(ScopeType.CONVERSATION)
  | public class StudyEditorAction implements StudyEditor {
  | 
  |    @Begin(id="create-study"
  |    public String createStudy() {
  |      ...
  |    }
  | 
  |    @Begin(id="edit#{study.id}")
  |    public void editStudy() {
  |      ...
  |    }
  | 
  |    @Begin(join=true)
  |    public void create() {
  |       ...
  |    }
  | 
  |    @Begin(join=true)
  |    public void update() {
  |       ...
  |    }
  | 
  |    @End
  |    public void done() {
  |       ...
  |    }
  | 
  |    @End
  |    public void cancel() {}
  | 
  |    @Remove
  |    public void destroy() {}
  | }
xhtml page:<h:selectInputText id="studyBrowsing" />
  | <h:commandButton id="findStudy" value="Browse Study" action="#{studyBrowser.find}" />
  | 
  | <h:commandLink value="Create New Study" action="#{studyEditor.createInstance}"/>
  | 
  | 
  | <h:dataTable id="studies" value="#{studies}" var="study" >
  | 	...
  | 	<h:column>
  | 		<f:facet name="header">Action</f:facet>
  | 		<ice:commandLink value="Edit Study" action="#{studyEditor.editStudy}"/>
  | 	</h:column>
  | </h:dataTable>
  | 
  | <h:commandLink value="Next Page" action="#{studyBrowser.nextPage}"/>
  | <h:commandLink value="Previous Page" action="#{studyBrowser.previousPage}"/>

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