| /* |
| * 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.process.traversal.traverser; |
| |
| import org.apache.tinkerpop.gremlin.process.traversal.Path; |
| import org.apache.tinkerpop.gremlin.process.traversal.Pop; |
| import org.apache.tinkerpop.gremlin.process.traversal.Step; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traverser; |
| import org.apache.tinkerpop.gremlin.process.traversal.step.util.ImmutablePath; |
| import org.apache.tinkerpop.gremlin.structure.util.reference.ReferenceFactory; |
| |
| import java.util.Set; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public class LP_O_OB_S_SE_SL_Traverser<T> extends O_OB_S_SE_SL_Traverser<T> { |
| |
| protected Path path; |
| |
| protected LP_O_OB_S_SE_SL_Traverser() { |
| } |
| |
| public LP_O_OB_S_SE_SL_Traverser(final T t, final Step<T, ?> step) { |
| super(t, step); |
| this.path = ImmutablePath.make(); |
| final Set<String> labels = step.getLabels(); |
| if (!labels.isEmpty()) this.path = this.path.extend(t, labels); |
| } |
| |
| ///////////////// |
| |
| @Override |
| public Path path() { |
| return this.path; |
| } |
| |
| ///////////////// |
| |
| @Override |
| public Traverser.Admin<T> detach() { |
| super.detach(); |
| this.path = ReferenceFactory.detach(this.path); |
| return this; |
| } |
| |
| ///////////////// |
| |
| @Override |
| public <R> Traverser.Admin<R> split(final R r, final Step<T, R> step) { |
| final LP_O_OB_S_SE_SL_Traverser<R> clone = (LP_O_OB_S_SE_SL_Traverser<R>) super.split(r, step); |
| clone.path = clone.path.clone(); |
| final Set<String> labels = step.getLabels(); |
| if (!labels.isEmpty()) clone.path = clone.path.extend(r, labels); |
| return clone; |
| } |
| |
| @Override |
| public Traverser.Admin<T> split() { |
| final LP_O_OB_S_SE_SL_Traverser<T> clone = (LP_O_OB_S_SE_SL_Traverser<T>) super.split(); |
| clone.path = clone.path.clone(); |
| return clone; |
| } |
| |
| @Override |
| public void addLabels(final Set<String> labels) { |
| if (!labels.isEmpty()) |
| this.path = this.path.isEmpty() || !this.t.equals(this.path.head()) ? |
| this.path.extend(this.t, labels) : |
| this.path.extend(labels); |
| } |
| |
| @Override |
| public int hashCode() { |
| return carriesUnmergeableSack() ? System.identityHashCode(this) : (super.hashCode() ^ this.path.hashCode()); |
| } |
| |
| protected final boolean equals(final LP_O_OB_S_SE_SL_Traverser other) { |
| return super.equals(other) && other.path.equals(this.path); |
| } |
| |
| @Override |
| public boolean equals(final Object object) { |
| return object instanceof LP_O_OB_S_SE_SL_Traverser && this.equals((LP_O_OB_S_SE_SL_Traverser) object); |
| } |
| } |