1.1 --- a/emul/compact/src/main/java/java/util/Dictionary.java Tue Feb 26 14:55:55 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,155 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 1995, 2004, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation. Oracle designates this
1.11 - * particular file as subject to the "Classpath" exception as provided
1.12 - * by Oracle in the LICENSE file that accompanied this code.
1.13 - *
1.14 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 - * version 2 for more details (a copy is included in the LICENSE file that
1.18 - * accompanied this code).
1.19 - *
1.20 - * You should have received a copy of the GNU General Public License version
1.21 - * 2 along with this work; if not, write to the Free Software Foundation,
1.22 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 - *
1.24 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 - * or visit www.oracle.com if you need additional information or have any
1.26 - * questions.
1.27 - */
1.28 -
1.29 -package java.util;
1.30 -
1.31 -/**
1.32 - * The <code>Dictionary</code> class is the abstract parent of any
1.33 - * class, such as <code>Hashtable</code>, which maps keys to values.
1.34 - * Every key and every value is an object. In any one <tt>Dictionary</tt>
1.35 - * object, every key is associated with at most one value. Given a
1.36 - * <tt>Dictionary</tt> and a key, the associated element can be looked up.
1.37 - * Any non-<code>null</code> object can be used as a key and as a value.
1.38 - * <p>
1.39 - * As a rule, the <code>equals</code> method should be used by
1.40 - * implementations of this class to decide if two keys are the same.
1.41 - * <p>
1.42 - * <strong>NOTE: This class is obsolete. New implementations should
1.43 - * implement the Map interface, rather than extending this class.</strong>
1.44 - *
1.45 - * @author unascribed
1.46 - * @see java.util.Map
1.47 - * @see java.lang.Object#equals(java.lang.Object)
1.48 - * @see java.lang.Object#hashCode()
1.49 - * @see java.util.Hashtable
1.50 - * @since JDK1.0
1.51 - */
1.52 -public abstract
1.53 -class Dictionary<K,V> {
1.54 - /**
1.55 - * Sole constructor. (For invocation by subclass constructors, typically
1.56 - * implicit.)
1.57 - */
1.58 - public Dictionary() {
1.59 - }
1.60 -
1.61 - /**
1.62 - * Returns the number of entries (distinct keys) in this dictionary.
1.63 - *
1.64 - * @return the number of keys in this dictionary.
1.65 - */
1.66 - abstract public int size();
1.67 -
1.68 - /**
1.69 - * Tests if this dictionary maps no keys to value. The general contract
1.70 - * for the <tt>isEmpty</tt> method is that the result is true if and only
1.71 - * if this dictionary contains no entries.
1.72 - *
1.73 - * @return <code>true</code> if this dictionary maps no keys to values;
1.74 - * <code>false</code> otherwise.
1.75 - */
1.76 - abstract public boolean isEmpty();
1.77 -
1.78 - /**
1.79 - * Returns an enumeration of the keys in this dictionary. The general
1.80 - * contract for the keys method is that an <tt>Enumeration</tt> object
1.81 - * is returned that will generate all the keys for which this dictionary
1.82 - * contains entries.
1.83 - *
1.84 - * @return an enumeration of the keys in this dictionary.
1.85 - * @see java.util.Dictionary#elements()
1.86 - * @see java.util.Enumeration
1.87 - */
1.88 - abstract public Enumeration<K> keys();
1.89 -
1.90 - /**
1.91 - * Returns an enumeration of the values in this dictionary. The general
1.92 - * contract for the <tt>elements</tt> method is that an
1.93 - * <tt>Enumeration</tt> is returned that will generate all the elements
1.94 - * contained in entries in this dictionary.
1.95 - *
1.96 - * @return an enumeration of the values in this dictionary.
1.97 - * @see java.util.Dictionary#keys()
1.98 - * @see java.util.Enumeration
1.99 - */
1.100 - abstract public Enumeration<V> elements();
1.101 -
1.102 - /**
1.103 - * Returns the value to which the key is mapped in this dictionary.
1.104 - * The general contract for the <tt>isEmpty</tt> method is that if this
1.105 - * dictionary contains an entry for the specified key, the associated
1.106 - * value is returned; otherwise, <tt>null</tt> is returned.
1.107 - *
1.108 - * @return the value to which the key is mapped in this dictionary;
1.109 - * @param key a key in this dictionary.
1.110 - * <code>null</code> if the key is not mapped to any value in
1.111 - * this dictionary.
1.112 - * @exception NullPointerException if the <tt>key</tt> is <tt>null</tt>.
1.113 - * @see java.util.Dictionary#put(java.lang.Object, java.lang.Object)
1.114 - */
1.115 - abstract public V get(Object key);
1.116 -
1.117 - /**
1.118 - * Maps the specified <code>key</code> to the specified
1.119 - * <code>value</code> in this dictionary. Neither the key nor the
1.120 - * value can be <code>null</code>.
1.121 - * <p>
1.122 - * If this dictionary already contains an entry for the specified
1.123 - * <tt>key</tt>, the value already in this dictionary for that
1.124 - * <tt>key</tt> is returned, after modifying the entry to contain the
1.125 - * new element. <p>If this dictionary does not already have an entry
1.126 - * for the specified <tt>key</tt>, an entry is created for the
1.127 - * specified <tt>key</tt> and <tt>value</tt>, and <tt>null</tt> is
1.128 - * returned.
1.129 - * <p>
1.130 - * The <code>value</code> can be retrieved by calling the
1.131 - * <code>get</code> method with a <code>key</code> that is equal to
1.132 - * the original <code>key</code>.
1.133 - *
1.134 - * @param key the hashtable key.
1.135 - * @param value the value.
1.136 - * @return the previous value to which the <code>key</code> was mapped
1.137 - * in this dictionary, or <code>null</code> if the key did not
1.138 - * have a previous mapping.
1.139 - * @exception NullPointerException if the <code>key</code> or
1.140 - * <code>value</code> is <code>null</code>.
1.141 - * @see java.lang.Object#equals(java.lang.Object)
1.142 - * @see java.util.Dictionary#get(java.lang.Object)
1.143 - */
1.144 - abstract public V put(K key, V value);
1.145 -
1.146 - /**
1.147 - * Removes the <code>key</code> (and its corresponding
1.148 - * <code>value</code>) from this dictionary. This method does nothing
1.149 - * if the <code>key</code> is not in this dictionary.
1.150 - *
1.151 - * @param key the key that needs to be removed.
1.152 - * @return the value to which the <code>key</code> had been mapped in this
1.153 - * dictionary, or <code>null</code> if the key did not have a
1.154 - * mapping.
1.155 - * @exception NullPointerException if <tt>key</tt> is <tt>null</tt>.
1.156 - */
1.157 - abstract public V remove(Object key);
1.158 -}