Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
}
	/**
	 * Finds a data set by name in this module and the included modules.
	 * 
	 * @param name
	 *            name of the data set
	 * @return a handle to the data set, or <code>null</code> if the data set
	 *         is not found
	 */
	public DataSetHandle findDataSet( String name )
	{
		DesignElement element = module.findDataSet( name );
		if ( !( element instanceof DataSet ) )
			return null;
		return (DataSetHandle) element.getHandle( element.getRoot( ) );
	}
	/**
	 * Finds a joint data set by name in this module and the included modules.
	 * 
	 * @param name
	 *            name of the joint data set
	 * @return a handle to the joint data set, or <code>null</code> if the
	 *         data set is not found
	 */
	public JointDataSetHandle findJointDataSet( String name )
	{
		DesignElement element = module.findDataSet( name );
		if ( !( element instanceof JointDataSet ) )
			return null;
		return (JointDataSetHandle) element.getHandle( element.getRoot( ) );