nl: returns the clone of the passed documentwrapper with filled documentwrapper #getdocumentmetadata and documentwrapper #getrowid only concode_field_sep Logger log concode_field_sep List<DocumentWrapper> extractDocumentWrappers concode_elem_sep String getPublicationYear concode_elem_sep Author getAuthor concode_elem_sep List<Author> getAuthors concode_elem_sep List<DocumentProtos.DocumentMetadata> extractDocumentMetadata concode_elem_sep String getMainTitle
code: DocumentWrapper function ( DocumentWrapper arg0 ) { return DocumentWrapper . newBuilder ( ) . setDocumentMetadata ( arg0 . getDocumentMetadata ( ) ) . setRowId ( arg0 . getRowId ( ) ) . build ( ) ; }