jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/schemagen/MultiMap.java@e530533619ec

     1 /*

     2  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.xml.internal.bind.v2.schemagen;

    28 import java.util.TreeMap;

    29 import java.util.Map;

    31 /**

    32  * A special {@link Map} that 'conceptually' stores a set of values for each key.

    33  *

    34  * <p>

    35  * When multiple values are stored, however, this class doesn't let the caller

    36  * see individual values, and instead it returns a specially designated "MANY" value,

    37  * which is given as a parameter to the constructor.

    38  *

    39  * @author Kohsuke Kawaguchi

    40  */

    41 final class MultiMap<K extends Comparable<K>,V> extends TreeMap<K,V> {

    42     private final V many;

    44     public MultiMap(V many) {

    45         this.many = many;

    46     }

    48     @Override

    49     public V put(K key, V value) {

    50         V old = super.put(key, value);

    51         if(old!=null && !old.equals(value)) {

    52             // different value stored

    53             super.put(key,many);

    54         }

    55         return old;

    56     }

    58     @Override

    59     public void putAll(Map<? extends K, ? extends V> map) {

    60         throw new UnsupportedOperationException();

    61     }

    62 }

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