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1: /* DateTimeSyntax.java -- 2: Copyright (C) 2003 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: package javax.print.attribute; 39: 40: import java.io.Serializable; 41: import java.util.Date; 42: 43: /** 44: * @author Michael Koch 45: */ 46: public abstract class DateTimeSyntax implements Cloneable, Serializable 47: { 48: private static final long serialVersionUID = -1400819079791208582L; 49: 50: private Date value; 51: 52: /** 53: * Creates a <code>DateTimeSyntax</code> with a given value. 54: * 55: * @param value the value for this syntax 56: * 57: * @exception NullPointerException if value is null 58: */ 59: protected DateTimeSyntax(Date value) 60: { 61: if (value == null) 62: throw new NullPointerException("value may not be null"); 63: 64: this.value = value; 65: } 66: 67: /** 68: * Returns the date value of this object. 69: * 70: * @return the date value 71: */ 72: public Date getValue() 73: { 74: return value; 75: } 76: 77: /** 78: * Tests if the given object is equal to this one. 79: * 80: * @param obj the object to test 81: * 82: * @return True if both objects are equal, false otherwise. 83: */ 84: public boolean equals(Object obj) 85: { 86: if (! (obj instanceof DateTimeSyntax)) 87: return false; 88: 89: return value.equals(((DateTimeSyntax) obj).getValue()); 90: } 91: 92: /** 93: * Returns the hashcode for this object. 94: * 95: * @return the hashcode 96: */ 97: public int hashCode() 98: { 99: return value.hashCode(); 100: } 101: }
GNU Classpath (0.17) |