Examples with RelationshipData org.neo4j.kernel.impl.nioneo.store.RelationshipData used on opensource projects

Example 6 with RelationshipData

use of org.neo4j.kernel.impl.nioneo.store.RelationshipData in project graphdb by neo4j-attic.

the class NodeManager method getRelationshipById.

public Relationship getRelationshipById(long relId) throws NotFoundException {
    RelationshipImpl relationship = relCache.get(relId);
    if (relationship != null) {
        return new RelationshipProxy(relId, this);
    }
    ReentrantLock loadLock = lockId(relId);
    try {
        relationship = relCache.get(relId);
        if (relationship != null) {
            return new RelationshipProxy(relId, this);
        }
        RelationshipData data = persistenceManager.loadLightRelationship(relId);
        if (data == null) {
            throw new NotFoundException("Relationship[" + relId + "]");
        }
        int typeId = data.relationshipType();
        RelationshipType type = getRelationshipTypeById(typeId);
        if (type == null) {
            throw new NotFoundException("Relationship[" + data.getId() + "] exist but relationship type[" + typeId + "] not found.");
        }
        final long startNodeId = data.firstNode();
        final long endNodeId = data.secondNode();
        relationship = new RelationshipImpl(relId, startNodeId, endNodeId, type, false);
        relCache.put(relId, relationship);
        return new RelationshipProxy(relId, this);
    } finally {
        loadLock.unlock();
    }
}