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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

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

import java.util.TreeMap;
import java.util.Map;

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

* When multiple values are stored, however, this class doesn't let the caller * see individual values, and instead it returns a specially designated "MANY" value, * which is given as a parameter to the constructor. * * @author Kohsuke Kawaguchi */ final class MultiMap,V> extends TreeMap { private final V many; public MultiMap(V many) { this.many = many; } @Override public V put(K key, V value) { V old = super.put(key, value); if(old!=null && !old.equals(value)) { // different value stored super.put(key,many); } return old; } @Override public void putAll(Map map) { throw new UnsupportedOperationException(); } }





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