Java tutorial
/** * Copyright 2016 Emmanuel Keller / QWAZR * <p> * Licensed 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 * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * 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 com.qwazr.externalizor; import org.apache.commons.lang3.RandomStringUtils; import org.apache.commons.lang3.RandomUtils; import java.io.Serializable; import java.util.*; public class AbstractCollection implements Serializable { private final Map<String, String> abstractMap; private final Set<String> abstractSet; private final List<String> abstractList; public AbstractCollection() { this.abstractMap = new HashMap<>(); this.abstractSet = new HashSet<>(); this.abstractList = new ArrayList<>(); for (int i = 0; i < RandomUtils.nextInt(5, 10); i++) { abstractMap.put(RandomStringUtils.randomAlphanumeric(4), RandomStringUtils.randomAlphanumeric(5)); abstractSet.add(RandomStringUtils.randomAlphanumeric(6)); abstractList.add(RandomStringUtils.randomAlphanumeric(7)); } } @Override public boolean equals(Object o) { if (o == null || !(o instanceof AbstractCollection)) return false; final AbstractCollection c = (AbstractCollection) o; return Objects.deepEquals(abstractMap, c.abstractMap) && Objects.deepEquals(abstractSet, c.abstractSet) && Objects.deepEquals(abstractList, c.abstractList); } }