| // *************************************************************************************************************************** |
| // * 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.juneau.utils; |
| |
| import java.util.*; |
| |
| /** |
| * An extension of {@link LinkedHashMap} with a convenience {@link #append(Object,Object)} method. |
| * |
| * <p> |
| * Primarily used for testing purposes for quickly creating populated maps. |
| * <p class='bcode w800'> |
| * <jc>// Example:</jc> |
| * Map<String,Integer> m = <jk>new</jk> AMap<String,Integer>() |
| * .append(<js>"foo"</js>,1).append(<js>"bar"</js>,2); |
| * </p> |
| * |
| * @param <K> The key type. |
| * @param <V> The value type. |
| */ |
| public final class AMap<K,V> extends LinkedHashMap<K,V> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * Creates an empty map. |
| * |
| * @return A new empty map. |
| */ |
| public static <K,V> AMap<K,V> create() { |
| return new AMap<>(); |
| } |
| |
| /** |
| * Creates a map with one entry. |
| * |
| * @param key Entry key. |
| * @param value Entry value. |
| * @return A new map with one entry. |
| */ |
| public static <K,V> AMap<K,V> create(K key, V value) { |
| return new AMap<K,V>().append(key, value); |
| } |
| |
| /** |
| * Adds an entry to this map. |
| * |
| * @param k The key. |
| * @param v The value. |
| * @return This object (for method chaining). |
| */ |
| public AMap<K,V> append(K k, V v) { |
| put(k, v); |
| return this; |
| } |
| } |