| /* |
| * 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.commons.weaver.model; |
| |
| /** |
| * Describes a {@link Weavable} that lives inside some other {@link Weavable}. |
| * @param <SELF> own type |
| * @param <TARGET> weavable target type |
| * @param <PARENT> enclosing weavable type |
| * @param <PARENT_TARGET> parent target type |
| */ |
| public abstract class NestedWeavable |
| <SELF extends NestedWeavable<SELF, TARGET, PARENT, PARENT_TARGET>, |
| TARGET, |
| PARENT extends Weavable<PARENT, PARENT_TARGET>, |
| PARENT_TARGET> |
| extends Weavable<SELF, TARGET> { |
| |
| private final PARENT parent; |
| |
| /** |
| * Create a new {@link NestedWeavable} instance. |
| * @param target element |
| * @param parent enclosing |
| */ |
| protected NestedWeavable(final TARGET target, final PARENT parent) { |
| super(target); |
| this.parent = parent; |
| } |
| |
| /** |
| * Gets the parent. |
| * @return {@code PARENT} |
| */ |
| public PARENT getParent() { |
| return parent; |
| } |
| |
| /** |
| * Implement {@link Comparable}. |
| * @param obj {@code SELF} |
| * @return int per {@link Comparable#compareTo(Object)} contract |
| */ |
| @Override |
| public final int compareTo(final SELF obj) { |
| final int result = getParent().compareTo(obj.getParent()); |
| return result == 0 ? localCompareTo(obj) : result; |
| } |
| |
| /** |
| * Compare against {@code o} without respect to {@link #getParent()}. |
| * @param obj SELF{@code SELF} |
| * @return int per {@link Comparable#compareTo(Object)} contract |
| */ |
| protected abstract int localCompareTo(SELF obj); |
| } |