@Override
public void deleteByRelationType(IRelationType relationType) {
// delete source reference pointing to relation type
OSQLSynchQuery<ODocument> query =
new OSQLSynchQuery<>("select * from Relation where relationType = " + relationType.getId());
List<ODocument> result = db.command(query).execute();
// remove relation and link
for (ODocument document : result) {
ODocument relationLink = getRelationLink(document, true);
if (relationLink != null && db.load(relationLink.getIdentity()) != null)
relationLink.delete();
document.delete();
}
}
@Override
public List<IRelation> findByRelationType(IRelationType relationType) {
List<IRelation> list = new LinkedList<>();
// no NPEs
if (relationType == null) return list;
initDb();
// execute query
OSQLSynchQuery<ODocument> query =
new OSQLSynchQuery<>("select * from Relation where relationType = " + relationType.getId());
List<ODocument> result = db.command(query).execute();
// populate set
for (ODocument document : result) list.add(convertToEntity(document));
return list;
}