001 /* StringValueExp.java -- Represents strings to be passed to queries. 002 Copyright (C) 2007 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 package javax.management; 039 040 /** 041 * Represents a string being used as an argument 042 * to a relational constraint. 043 * 044 * @author Andrew John Hughes (gnu_andrew@member.fsf.org) 045 * @since 1.5 046 */ 047 public class StringValueExp 048 implements ValueExp 049 { 050 051 /** 052 * Compatible with JDK 1.5 053 */ 054 private static final long serialVersionUID = -3256390509806284044L; 055 056 /** 057 * The string value. 058 */ 059 private String val; 060 061 /** 062 * Constructs a new {@link StringValueExp}. 063 */ 064 public StringValueExp() 065 { 066 } 067 068 /** 069 * Constructs a new {@link StringValueExp} using the 070 * specified value. 071 * 072 * @param val the string value used for this expression. 073 */ 074 public StringValueExp(String val) 075 { 076 this.val = val; 077 } 078 079 /** 080 * Applies the {@link StringValueExp} to the specified 081 * management bean by simply returning the value. 082 * 083 * @param name the {@link ObjectName} of the bean. 084 * @return the {@link StringValueExp} itself. 085 * @throws BadStringOperationException if an invalid string 086 * operation is used by 087 * the value expression. 088 * @throws BadBinaryOpValueExpException if an invalid expression 089 * is used by the value expression. 090 * @throws BadAttributeValueExpException if an invalid attribute 091 * is used by the value expression. 092 * @throws InvalidApplicationException if the value expression is applied 093 * to the wrong type of bean. 094 */ 095 public ValueExp apply(ObjectName name) 096 throws BadStringOperationException, BadBinaryOpValueExpException, 097 BadAttributeValueExpException, InvalidApplicationException 098 { 099 return this; 100 } 101 102 /** 103 * Returns the value. 104 * 105 * @return the value. 106 */ 107 public String getValue() 108 { 109 return val; 110 } 111 112 /** 113 * Sets the {@link MBeanServer} on which the query 114 * will be performed. 115 * 116 * @param server the new server. 117 */ 118 public void setMBeanServer(MBeanServer server) 119 { 120 /* This seems to do nothing any more */ 121 } 122 123 /** 124 * Returns the value in quotes. 125 * 126 * @return the value (quoted). 127 */ 128 public String toString() 129 { 130 return "'" + val + "'"; 131 } 132 133 }