| /* CharsetSyntax.java -- |
| Copyright (C) 2006 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 gnu.javax.print.ipp.attribute; |
| |
| import java.io.Serializable; |
| |
| /** |
| * <code>CharsetSyntax</code> is the abstract base class of all attribute |
| * classes which provide a charset (US-ASCII) string as value. |
| * |
| * @author Wolfgang Baer (WBaer@gmx.de) |
| */ |
| public abstract class CharsetSyntax implements Cloneable, Serializable |
| { |
| private final String value; |
| |
| /** |
| * Creates a <code>CharsetSyntax</code> object with the given value |
| * and locale. |
| * |
| * @param value the value for this syntax |
| * |
| * @exception NullPointerException if value is null |
| */ |
| protected CharsetSyntax(String value) |
| { |
| if (value == null) |
| throw new NullPointerException("value may not be null"); |
| |
| this.value = value; |
| } |
| |
| /** |
| * Returns the value of this syntax object. |
| * |
| * @return The value. |
| */ |
| public String getValue() |
| { |
| return value; |
| } |
| |
| /** |
| * Returns the hashcode for this object. |
| * |
| * @return The hashcode. |
| */ |
| public int hashCode() |
| { |
| return value.hashCode(); |
| } |
| |
| /** |
| * Tests if the given object is equal to this object. |
| * |
| * @param obj the object to test |
| * |
| * @return true if both objects are equal, false otherwise. |
| */ |
| public boolean equals(Object obj) |
| { |
| if (! (obj instanceof CharsetSyntax)) |
| return false; |
| |
| CharsetSyntax tmp = (CharsetSyntax) obj; |
| return value.equals(tmp.getValue()); |
| } |
| |
| /** |
| * Returns a string representing the object. The returned |
| * string is the underlying text value of this object. |
| * |
| * @return The string representation. |
| */ |
| public String toString() |
| { |
| return getValue(); |
| } |
| } |