overflowdb.NodeFactory Maven / Gradle / Ivy

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package overflowdb;

public abstract class NodeFactory {
  public abstract String forLabel();

  public abstract V createNode(NodeRef ref);

  public abstract NodeRef createNodeRef(Graph graph, long id);

  public  V createNode(Graph graph, long id) {
    return createNode(graph, id, null);
  }

  public V createNode(Graph graph, long id, NodeRef ref) {
    if(ref == null) ref = createNodeRef(graph, id);
    final V node = createNode(ref);
    node.markAsDirty(); //freshly created, i.e. not yet serialized
    ref.setNode(node);
    return node;
  }

  public DetachedNodeData createDetached(){
    return new DetachedNodeGeneric(forLabel());
  }

}