.getHandle( getPropertyHandle( SimpleDataSet.CACHED_METADATA_PROP ) );
.getHandle( getPropertyHandle( CACHED_METADATA_PROP ) );
	public CachedMetaDataHandle setCachedMetaData( CachedMetaData metadata )			throws SemanticException	{		setProperty( SimpleDataSet.CACHED_METADATA_PROP, metadata );		if ( metadata == null )			return null;		return (CachedMetaDataHandle) metadata				.getHandle( getPropertyHandle( SimpleDataSet.CACHED_METADATA_PROP ) );	}