/* * Copyright 2016 the original author or authors. * * 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 * * 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.springframework.integration.support; import java.util.HashMap; import java.util.Map; import org.springframework.expression.spel.standard.SpelExpressionParser; /** * A {@code Builder} pattern implementation for the {@link Map}. * * @param <B> The type of target {@link MapBuilder} implementation. * @param <K> The Map key type. * @param <V> The Map value type. * * @author Artem Bilan * @since 5.0 */ public class MapBuilder<B extends MapBuilder<B, K, V>, K, V> { protected final static SpelExpressionParser PARSER = new SpelExpressionParser(); private final Map<K, V> map = new HashMap<K, V>(); public B put(K key, V value) { this.map.put(key, value); return _this(); } public Map<K, V> get() { return this.map; } @SuppressWarnings("unchecked") protected final B _this() { return (B) this; } }