Bug 156923 Group page break auto behavior
Current behabvior - When page break property is set to auto. By default BIRT engine creates page breaks for the outermost group. Expected behavior - Group level page break, auto should not create page breaks for the any group ( including outermost )
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/GroupExecutor.java
{
			GroupExecutor pGroup = (GroupExecutor)parent; 
			pGroup.needPageBreak = true;
		}
		else if (parent instanceof ListingElementExecutor)
		{
			ListingElementExecutor pList = (ListingElementExecutor)parent;
			pList.needPageBreak = true;
		}
	}
	
	boolean isTopLevelListing( )
	{
		DesignElementHandle listing = listingExecutor.getDesign( ).getHandle( );
		if ( listing != null )
		{
			DesignElementHandle parent = listing.getContainer( );
			while ( parent != null )
			{
				if ( parent instanceof ListingHandle )
				{
					return false;
				}
				parent = parent.getContainer( );
			}
		}
		return true;
	}
}