| /* |
| * 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.tinkergraph.structure; |
| |
| import org.apache.tinkerpop.gremlin.structure.Element; |
| import org.apache.tinkerpop.gremlin.structure.util.ElementHelper; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public abstract class TinkerElement implements Element { |
| |
| protected final Object id; |
| protected final String label; |
| protected boolean removed = false; |
| protected long currentVersion; |
| |
| protected TinkerElement(final Object id, final String label) { |
| this.id = id; |
| this.label = label; |
| currentVersion = -1; |
| } |
| |
| protected TinkerElement(final Object id, final String label, final long currentVersion) { |
| this.id = id; |
| this.label = label; |
| this.currentVersion = currentVersion; |
| } |
| |
| @Override |
| public int hashCode() { |
| return ElementHelper.hashCode(this); |
| } |
| |
| public abstract Object clone(); |
| |
| @Override |
| public Object id() { |
| return this.id; |
| } |
| |
| @Override |
| public String label() { |
| return this.label; |
| } |
| |
| @SuppressWarnings("EqualsWhichDoesntCheckParameterClass") |
| @Override |
| public boolean equals(final Object object) { |
| return ElementHelper.areEqual(this, object); |
| } |
| |
| public long version() { return this.currentVersion; } |
| |
| protected static IllegalStateException elementAlreadyRemoved(final Class<? extends Element> clazz, final Object id) { |
| return new IllegalStateException(String.format("%s with id %s was removed.", clazz.getSimpleName(), id)); |
| } |
| } |