| /******************************************************************************* |
| * 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.ofbiz.base.util.collections; |
| |
| import java.util.Map; |
| import java.util.Set; |
| |
| public abstract class GenericMapSet<K, V, M extends Map<K, V>, I> extends GenericMapCollection<K, V, M, I> implements Set<I> { |
| public GenericMapSet(M source) { |
| super(source); |
| } |
| |
| @Override |
| public final boolean equals(Object o) { |
| if (!(o instanceof Set<?>)) return false; |
| Set<?> other = (Set<?>) o; |
| if (source.size() != other.size()) return false; |
| for (I item: this) { |
| if (!other.contains(item)) return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public final int hashCode() { |
| int h = 0; |
| for (I item: this) { |
| if (item == null) continue; |
| h += item.hashCode(); |
| } |
| return h; |
| } |
| } |
| |