Hi, I have another problem with JBoss EL:

I read the row index from an A4J repeat tag using <a4j:repeat rowKeyVar="index" ...>.
Additionally I get the size of the collection using JBoss EL (#{collection.size()}).

Now, I have a custom tag that checks a condition and renders its children if the condition is met. (If there is a component I could use, I'd ditch my own - but be aware that I can't use SEAM in the current project, so any seam component would not be appropriate).

My custom component works as long as the expression is quite simple, e.g.
<mytag:condition value="true"/>,
<mytag:condition value="#{collection.size() > 0}"/>,
<mytag:condition value="#{index > 0}"/>
all work.

What doesn't work is this: <mytag:condition value="#{collection.size() > (index + 1)}"/>. When I set that expression as the 'rendered' attribute of a nested tag, e.g. <h:outputText rendered="#{collection.size() > (index + 1)}"/> it works, but not with my custom tag.

Used with my custom tag I get always true for #{collection.size() > (index + 1)} or even for #{collection.size() > (index - 1)} (if the size is > 1) but always false for #{collection.size() > index}

It seems like the index is ignored and collection.size() is checked against +1 or -1 instead of index + 1 and index - 1.

Here's the tag handler:

public class ConditionTagHandler extends TagHandler
{
  private final TagAttribute condition;
  
  public ConditionTagHandler( TagConfig pConfig )
  {
    super( pConfig );
    condition = getRequiredAttribute( "value" );
  }

  public void apply( FaceletContext pContext, UIComponent pParent ) throws IOException, FacesException, FaceletException, ELException
  {    
    Boolean tConditionValue = (Boolean)condition.getObject( pContext, Boolean.class );
    
    if(tConditionValue != null && tConditionValue)
    {
      nextHandler.apply(pContext, pParent);
    }
  }
}

Thanks for your help.