Java Map Merge mergeMaps(Map into, Map from, boolean override)

Description

Merge maps.

License

Apache License

Parameter

Parameter	Description
K	the key type
V	the value type
into	the into
from	the from
override	the override

Declaration

public static <K, V> void mergeMaps(Map<K, V> into, Map<K, V> from, boolean override) 

Method Source Code

//package com.java2s;
/**// www.  ja v a2 s.c  om
 * 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.
 */

import java.util.Map;

public class Main {
    /**
     * Merge maps.
     *
     * @param <K>      the key type
     * @param <V>      the value type
     * @param into     the into
     * @param from     the from
     * @param override the override
     */
    public static <K, V> void mergeMaps(Map<K, V> into, Map<K, V> from, boolean override) {
        for (K key : from.keySet()) {
            if (override || !into.containsKey(key)) {
                into.put(key, from.get(key));
            }
        }
    }
}

Related

1. mergeMapIntoMap(Map> source, Map> destination)
2. mergeMapList(List> list)
3. mergeMaps(Map m1, Map m2)
4. mergeMaps(Map mainMap, Map defaultMap, String[] keys, boolean enforceValues)
5. mergeMaps(Map dest, Map inserts)
6. mergeMaps(Map m1, Map m2)
7. mergeMaps(Map map1, Map map2)
8. mergeMaps(Map defaultMap, Map customMap)
9. mergeMaps(Map destination, Map source)