diff -r fd16c54261b3 -r 90ce3da70b43 jdk/src/share/classes/javax/management/Attribute.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/share/classes/javax/management/Attribute.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,135 @@ +/* + * Copyright 1999-2005 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun in the LICENSE file that accompanied this code. + * + * This code 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 + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +package javax.management; + + +// java import +import java.io.Serializable; + + +/** + * Represents an MBean attribute by associating its name with its value. + * The MBean server and other objects use this class to get and set attributes values. + * + * @since 1.5 + */ +public class Attribute implements Serializable { + + /* Serial version */ + private static final long serialVersionUID = 2484220110589082382L; + + /** + * @serial Attribute name. + */ + private String name; + + /** + * @serial Attribute value + */ + private Object value= null; + + + /** + * Constructs an Attribute object which associates the given attribute name with the given value. + * + * @param name A String containing the name of the attribute to be created. Cannot be null. + * @param value The Object which is assigned to the attribute. This object must be of the same type as the attribute. + * + */ + public Attribute(String name, Object value) { + + if (name == null) { + throw new RuntimeOperationsException(new IllegalArgumentException("Attribute name cannot be null ")); + } + + this.name = name; + this.value = value; + } + + + /** + * Returns a String containing the name of the attribute. + * + * @return the name of the attribute. + */ + public String getName() { + return name; + } + + /** + * Returns an Object that is the value of this attribute. + * + * @return the value of the attribute. + */ + public Object getValue() { + return value; + } + + /** + * Compares the current Attribute Object with another Attribute Object. + * + * @param object The Attribute that the current Attribute is to be compared with. + * + * @return True if the two Attribute objects are equal, otherwise false. + */ + + + public boolean equals(Object object) { + if (!(object instanceof Attribute)) { + return false; + } + Attribute val = (Attribute) object; + + if (value == null) { + if (val.getValue() == null) { + return name.equals(val.getName()); + } else { + return false; + } + } + + return ((name.equals(val.getName())) && + (value.equals(val.getValue()))); + } + + /** + * Returns a hash code value for this attribute. + * + * @return a hash code value for this attribute. + */ + public int hashCode() { + return name.hashCode() ^ (value == null ? 0 : value.hashCode()); + } + + /** + * Returns a String object representing this Attribute's value. The format of this + * string is not specified, but users can expect that two Attributes return the + * same string if and only if they are equal. + */ + public String toString() { + return getName() + " = " + getValue(); + } + }