DataSetCacheManager.getInstance( ).clearCache( dataSource, dataSet );
DataSetCacheManager dscManager = this.getSession( ).getDataSetCacheManager( ); if( dscManager == null ) return; else dscManager.clearCache( dataSource, dataSet );
	public void clearCache( IBaseDataSourceDesign dataSource,			IBaseDataSetDesign dataSet ) throws BirtException	{		if ( dataSource == null || dataSet == null )			return;		DataSetCacheManager.getInstance( ).clearCache( dataSource, dataSet );	}