I’m using JSF2.0 and am building up a wizard. I have encountered a problem with SelectBooleanCheckboxes. Here is the workflow:
- Load page with checkboxes (values are bound to a SortedMap in the backing bean).
- Tick them, and click next. This increments a cursor, which the page uses to determine which PanelGroup the load.
- The (correct) values are persisted to the bean.
- Click back (cursor is decremented) and page renders the editable checkboxes. The first checkbox is not ticked (even though the bound variable holds a value of true for that box).
This cursor-based approach (which contains all of the wizard screens) doesn’t seem to work. However, if i slightly modify this so that the prev/next buttons bring up different xhtml pages, this issue disappears.
Unfortunately I cant do this. We are going to plug this wizard into a modal dialog, so visiting a new page on prev/next will not work
I’ve written up a smallish example of this (rather than asking you to wade through the entire wizard).
Here is the Java class:
@ConversationScoped
@Named("hashBool")
public class HashBoolTest2 implements Serializable {
private static final long serialVersionUID = 1962031429874426411L;
@Inject private Conversation conversation;
private List<RestrictionItem> list;
private SortedMap<String, Boolean> values;
private int cursor;
public HashBoolTest2( ) {
List<String> none = new ArrayList<String>();
none.add("");
this.setList( new ArrayList< RestrictionItem >( ) );
this.getList().add( new RestrictionItem( "a", "a", none ) );
...
this.getList().add( new RestrictionItem( "e", "e", none ) );
this.setValues( new TreeMap< String, Boolean >() );
this.setCursor( 0 );
}
@PostConstruct
public void andThis() {
this.conversation.begin( );
}
// getters and setters for instance variables
@Override
public String toString() {
return "Values : " + this.values.toString( ) + " List: " + this.list.toString( );
}
public void kill() {
this.conversation.end( );
}
public void doNext(ActionEvent e) {
this.cursor++;
}
public void doPrev(ActionEvent e) {
this.cursor--;
}
}
Here is the XHTML fragment:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!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:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:c="http://java.sun.com/jsp/jstl/core">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>IGNORED</title>
</head>
<body>
<ui:composition>
<h:panelGroup id="container">
<h:form>
<!-- edit state -->
<h:panelGroup id="edit" rendered="#{hashBool.cursor eq 0}">
<code>
<h:outputText value="#{hashBool.toString()}" escape="false"/>
</code>
<ul>
<ui:repeat value="#{hashBool.list}" var="elem">
<li>
<h:selectBooleanCheckbox id="elem" value="#{hashBool.values[elem.id]}" title="#{elem.displayName}" />
<h:outputLabel for="elem" value="#{elem.displayName}"/>
</li>
</ui:repeat>
</ul>
</h:panelGroup>
<!-- view state -->
<h:panelGroup id="view" rendered="#{hashBool.cursor eq 1}">
<code>
<h:outputText value="#{hashBool.toString()}" escape="false"/>
</code>
</h:panelGroup>
<br/>
<!-- buttons -->
<h:panelGroup id="buttons">
<f:ajax render=":container">
<h:commandButton value="Prev" actionListener="#{hashBool.doPrev}"/>
<h:commandButton value="Next" actionListener="#{hashBool.doNext}"/>
</f:ajax>
<h:commandButton value="Kill" actionListener="#{hashBool.kill()}"/>
</h:panelGroup>
</h:form>
</h:panelGroup>
</ui:composition>
</body>
</html>
Any suggestions are welcome! (And sorry if this is a double post, i havnt been able to uncover anything similar while searching here)
Mainly to ensure that the Wisdom of the Ancients remains properly documented (http://xkcd.com/979/): Turns out this is a bug within JSF 2.0.2 (which comes bundled with Liferay 6.0 GA 4). See here for more info: http://java.net/jira/browse/JAVASERVERFACES-1561