public abstract Stream<ChampObject> queryObjects(Map<String, Object> queryParams);
public abstract ChampRelationship executeStoreRelationship(ChampRelationship relationship) throws ChampUnmarshallingException, ChampMarshallingException, ChampObjectNotExistsException, ChampSchemaViolationException, ChampRelationshipNotExistsException;
public abstract ChampRelationship executeReplaceRelationship(ChampRelationship relationship) throws ChampUnmarshallingException, ChampMarshallingException, ChampSchemaViolationException, ChampRelationshipNotExistsException;
+ @Override
public abstract Optional<ChampRelationship> retrieveRelationship(Object key) throws ChampUnmarshallingException;
public abstract void executeDeleteRelationship(ChampRelationship relationship) throws ChampRelationshipNotExistsException;
public abstract Stream<ChampRelationship> retrieveRelationships(ChampObject object) throws ChampUnmarshallingException, ChampObjectNotExistsException;