| /******************************************************************************* |
| * 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.Collection; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.ofbiz.base.util.UtilObject; |
| |
| public abstract class GenericMapValues<K, V, M extends Map<K, V>> extends GenericMapCollection<K, V, M, V> { |
| public GenericMapValues(M source) { |
| super(source); |
| } |
| |
| public boolean contains(Object item) { |
| Iterator<V> it = iterator(false); |
| while (it.hasNext()) { |
| if (UtilObject.equalsHelper(item, it.next())) return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof Collection<?>)) return false; |
| if (o instanceof List<?> || o instanceof Set<?>) return false; |
| Collection<?> other = (Collection<?>) o; |
| if (source.size() != other.size()) return false; |
| Iterator<V> it = iterator(false); |
| while (it.hasNext()) { |
| V item = it.next(); |
| if (!other.contains(item)) return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| int h = 0; |
| Iterator<V> it = iterator(false); |
| while (it.hasNext()) { |
| V item = it.next(); |
| if (item == null) continue; |
| h += item.hashCode(); |
| } |
| return h; |
| } |
| |
| public boolean remove(Object item) { |
| Iterator<V> it = iterator(false); |
| while (it.hasNext()) { |
| if (UtilObject.equalsHelper(item, it.next())) { |
| it.remove(); |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| |