Bug 165657 [2.1.2][Acceptance]Setting &__svg=false doesn't take effects in deployment [0601]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/AbstractBaseActionHandler.java
}
	public void redo( )
	{
	}
	public boolean prepare( )
	{
		return true;
	}
	protected abstract IViewerReportService getReportService( );
	/**
	 * Prepare the update list. TODO: move to base.
	 * 
	 * @param data
	 * @param op
	 * @param response
	 */
	protected void appendUpdate( GetUpdatedObjectsResponse response,
			Update update )
	{
		
		Update[] oldUpdates = response.getUpdate( );
		if ( oldUpdates == null || oldUpdates.length == 0 )
		{
			response.setUpdate( new Update[]{update} );
		}
		else
		{
			Update[] newUpdates = new Update[oldUpdates.length + 1];
			for ( int idx = 0; idx < oldUpdates.length; idx++ )
			{