Bug 152830 Need model's support to add jar files
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
*/
	public List getVisibleDataSets( )
	{
		IModuleNameScope namescope = module
				.getModuleNameSpace( Module.DATA_SET_NAME_SPACE );
		List elementList = namescope
				.getElements( IModuleNameScope.NATIVE_LEVEL );
		return generateHandleList( elementList );
	}
	/**
	 * Returns all page handles that this modules and the included modules
	 * contain.
	 * 
	 * @return all page handles that this modules and the included modules
	 *         contain.
	 */
	public List getAllPages( )
	{
		List elementList = module.getNameSpace( Module.PAGE_NAME_SPACE )
				.getElements( );
		return generateHandleList( elementList );
	}
	/**
	 * Returns all parameter handles that this modules and the included modules
	 * contain.
	 * 
	 * @return all parameter handles that this modules and the included modules
	 *         contain.
	 */
	public List getAllParameters( )