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Diffstat (limited to 'libjava/java/util/Dictionary.java')
-rw-r--r-- | libjava/java/util/Dictionary.java | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/libjava/java/util/Dictionary.java b/libjava/java/util/Dictionary.java deleted file mode 100644 index 0d44ab67de1..00000000000 --- a/libjava/java/util/Dictionary.java +++ /dev/null @@ -1,136 +0,0 @@ -/* Dictionary.java -- an abstract (and essentially worthless) - class which is Hashtable's superclass - Copyright (C) 1998, 2001, 2002 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package java.util; - -/** - * A Dictionary maps keys to values; <i>how</i> it does that is - * implementation-specific. - * - * This is an abstract class which has really gone by the wayside. - * People at Javasoft are probably embarrassed by it. At this point, - * it might as well be an interface rather than a class, but it remains - * this poor, laughable skeleton for the sake of backwards compatibility. - * At any rate, this was what came before the {@link Map} interface - * in the Collections framework. - * - * @author Jon Zeppieri - * @author Eric Blake (ebb9@email.byu.edu) - * @see Map - * @see Hashtable - * @since 1.0 - * @status updated to 1.4 - */ -public abstract class Dictionary -{ - // WARNING: Dictionary is a CORE class in the bootstrap cycle. See the - // comments in vm/reference/java/lang/Runtime for implications of this fact. - - /** - * Sole constructor (often called implicitly). - */ - public Dictionary() - { - } - - /** - * Returns an Enumeration of the values in this Dictionary. - * - * @return an Enumeration of the values - * @see #keys() - */ - public abstract Enumeration elements(); - - /** - * Returns the value associated with the supplied key, or null - * if no such value exists. Since Dictionaries are not allowed null keys - * or elements, a null result always means the key is not present. - * - * @param key the key to use to fetch the value - * @return the mapped value - * @throws NullPointerException if key is null - * @see #put(Object, Object) - */ - public abstract Object get(Object key); - - /** - * Returns true when there are no elements in this Dictionary. - * - * @return <code>size() == 0</code> - */ - public abstract boolean isEmpty(); - - /** - * Returns an Enumeration of the keys in this Dictionary - * - * @return an Enumeration of the keys - * @see #elements() - */ - public abstract Enumeration keys(); - - /** - * Inserts a new value into this Dictionary, located by the - * supplied key. Dictionary does not support null keys or values, so - * a null return can safely be interpreted as adding a new key. - * - * @param key the key which locates the value - * @param value the value to put into the Dictionary - * @return the previous value of the key, or null if there was none - * @throws NullPointerException if key or value is null - * @see #get(Object) - */ - public abstract Object put(Object key, Object value); - - /** - * Removes from the Dictionary the value located by the given key. A null - * return safely means that the key was not mapped in the Dictionary. - * - * @param key the key used to locate the value to be removed - * @return the value associated with the removed key - * @throws NullPointerException if key is null - */ - public abstract Object remove(Object key); - - /** - * Returns the number of values currently in this Dictionary. - * - * @return the number of keys in the Dictionary - */ - public abstract int size(); -} // class Dictionary |