private Relationship relationship(long id) throws RelationshipNotFoundException {
try {
return graphDb.getRelationshipById(id);
} catch (NotFoundException e) {
throw new RelationshipNotFoundException();
}
}
public IndexedEntityRepresentation getIndexedRelationship(
String indexName, String key, String value, long id) {
if (!relationshipIsIndexed(indexName, key, value, id)) throw new NotFoundException();
Relationship node = graphDb.getRelationshipById(id);
return new IndexedEntityRepresentation(
node,
key,
value,
new RelationshipIndexRepresentation(indexName, Collections.<String, String>emptyMap()));
}
public void removeFromRelationshipIndexNoKeyValue(String indexName, long id) {
RelationshipIndex index = graphDb.index().forRelationships(indexName);
Transaction tx = graphDb.beginTx();
try {
index.remove(graphDb.getRelationshipById(id));
tx.success();
} finally {
tx.finish();
}
}
public boolean relationshipIsIndexed(
String indexName, String key, Object value, long relationshipId)
throws DatabaseBlockedException {
Index<Relationship> index = graphDb.index().forRelationships(indexName);
Transaction tx = graphDb.beginTx();
try {
Relationship expectedNode = graphDb.getRelationshipById(relationshipId);
IndexHits<Relationship> hits = index.get(key, value);
boolean contains = iterableContains(hits, expectedNode);
tx.success();
return contains;
} finally {
tx.finish();
}
}
public IndexedEntityRepresentation addToRelationshipIndex(
String indexName, String key, String value, long relationshipId) {
Transaction tx = graphDb.beginTx();
try {
Relationship relationship = graphDb.getRelationshipById(relationshipId);
Index<Relationship> index = graphDb.index().forRelationships(indexName);
index.add(relationship, key, value);
tx.success();
return new IndexedEntityRepresentation(
relationship,
key,
value,
new RelationshipIndexRepresentation(indexName, Collections.<String, String>emptyMap()));
} finally {
tx.finish();
}
}