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FUNCTION acyclic_document_relationship (relation : document_relationship, relatives : SET [1:?] OF document, specific_relation : STRING) : BOOLEAN; LOCAL x : SET OF document_relationship ; END_LOCAL ; IF relation . relating_document IN relatives THEN RETURN ( FALSE ) ; END_IF ; x := QUERY ( doc <* bag_to_set ( USEDIN ( relation . relating_document , 'document_schema.' + 'document_relationship.' + 'related_document' ) ) | specific_relation IN TYPEOF ( doc ) ) ; REPEAT i := 1 TO HIINDEX ( x ) ; IF NOT acyclic_document_relationship ( x [ i ] , relatives + relation . relating_document , specific_relation ) THEN RETURN ( FALSE ) ; END_IF ; END_REPEAT ; RETURN ( TRUE ) ; END_FUNCTION; -- acyclic_document_relationship |
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public class FAcyclic_document_relationship public static Value run(SdaiContext _context, Value relation, Value relatives, Value specific_relation) |