private Index<Vertex> getOrCreateValuesIndex(final IndexableGraph graph) {
for (Index<? extends Element> index : graph.getIndices()) {
if (index.getIndexName().equals(VALUES)) {
return (Index<Vertex>) index;
}
}
Set<String> keys = new HashSet<String>();
keys.add(VALUE);
return graph.createAutomaticIndex(VALUES, Vertex.class, keys);
}
public <T extends Element> Index<T> getIndex(final String indexName, final Class<T> indexClass) {
final Index<T> index = rawGraph.getIndex(indexName, indexClass);
if (null == index) return null;
else {
if (index.getIndexType().equals(Index.Type.MANUAL)) {
return new PartitionIndex<T>(index, this);
} else {
return new PartitionAutomaticIndex<T>((AutomaticIndex<T>) index, this);
}
}
}
public Vertex getReferenceVertex() {
// System.out.println("value = " + value);
CloseableSequence<Vertex> i = values.get(VALUE, NAMESPACES_VERTEX_ID);
try {
return i.hasNext() ? i.next() : null;
} finally {
i.close();
}
}
public Vertex findVertex(final Value value) {
CloseableSequence<Vertex> i = values.get(VALUE, value.stringValue());
try {
while (i.hasNext()) {
Vertex v = i.next();
if (matches(v, value)) {
return v;
}
}
return null;
} finally {
i.close();
}
}