public Metadata filter(Metadata metadata) {
        Metadata filtered_md = _filter(metadata, mdToTransfer);

        // add the features that are only persisted but
        // not transfered like __redirTo_
        filtered_md.putAll(_filter(metadata, mdToPersistOnly));

        return filtered_md;
    }
public Metadata filter(Metadata metadata) {
        Metadata filtered_md = _filter(metadata, mdToTransfer);

        
        
        filtered_md.putAll(_filter(metadata, mdToPersistOnly));

        return filtered_md;
    }
public Metadata filter ( Metadata metadata ) { Metadata filtered_md = _filter ( metadata , mdToTransfer ) ; // add the features that are only persisted but // not transfered like __redirTo_ filtered_md . putAll ( _filter ( metadata , mdToPersistOnly ) ) ; return filtered_md ; }
Determine which metadata should be persisted for a given document
including those which are not necessarily transferred to the outlinks
Determine which metadata should be persisted for a given document including those which are not necessarily transferred to the outlinks