001    /*
002     * Copyright (C) 2008-2010 by Holger Arndt
003     *
004     * This file is part of the Universal Java Matrix Package (UJMP).
005     * See the NOTICE file distributed with this work for additional
006     * information regarding copyright ownership and licensing.
007     *
008     * UJMP is free software; you can redistribute it and/or modify
009     * it under the terms of the GNU Lesser General Public License as
010     * published by the Free Software Foundation; either version 2
011     * of the License, or (at your option) any later version.
012     *
013     * UJMP is distributed in the hope that it will be useful,
014     * but WITHOUT ANY WARRANTY; without even the implied warranty of
015     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
016     * GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public
019     * License along with UJMP; if not, write to the
020     * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
021     * Boston, MA  02110-1301  USA
022     */
023    
024    package org.ujmp.core.collections;
025    
026    import java.util.Iterator;
027    import java.util.Map;
028    
029    public class SoftHashMapList<K, V> extends SoftHashMap<K, V> {
030            private static final long serialVersionUID = 6061017330977330118L;
031    
032            public SoftHashMapList() {
033                    super();
034            }
035    
036            public SoftHashMapList(Map<? extends K, ? extends V> m) {
037                    super(m);
038            }
039    
040            public synchronized V put(K key, V value) {
041                    return super.put(key, value);
042            }
043    
044            public synchronized int indexOf(V value) {
045                    Iterator<V> it = values().iterator();
046                    for (int i = 0; it.hasNext(); i++) {
047                            if (it.next().equals(value)) {
048                                    return i;
049                            }
050                    }
051                    return -1;
052            }
053    
054            public synchronized V get(int index) {
055                    Iterator<V> it = values().iterator();
056                    for (int i = 0; it.hasNext() && i < index; i++) {
057                            it.next();
058                    }
059                    return it.hasNext() ? it.next() : null;
060            }
061    
062            public synchronized V remove(Object key) {
063                    return super.remove(key);
064            }
065    
066    }