| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.tinkerpop.gremlin; |
| |
| import org.apache.tinkerpop.gremlin.structure.Graph; |
| import org.apache.tinkerpop.gremlin.structure.util.Attachable; |
| import org.apache.tinkerpop.gremlin.structure.util.detached.DetachedFactory; |
| |
| /** |
| * Utility class supporting common functions for {@link Graph}. |
| */ |
| public final class GraphHelper { |
| |
| private GraphHelper() { |
| } |
| |
| /** |
| * make a deep clone of the graph elements that preserves ids |
| */ |
| public static void cloneElements(final Graph original, final Graph clone) { |
| original.vertices().forEachRemaining(v -> DetachedFactory.detach(v, true).attach(Attachable.Method.create(clone))); |
| original.edges().forEachRemaining(e -> DetachedFactory.detach(e, true).attach(Attachable.Method.create(clone))); |
| } |
| } |