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136 lines
3.0 KiB
136 lines
3.0 KiB
/*
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* Copyright (c) 1999, 2005, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.management;
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// java import
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import java.io.Serializable;
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/**
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* Represents an MBean attribute by associating its name with its value.
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* The MBean server and other objects use this class to get and set attributes values.
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*
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* @since 1.5
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*/
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public class Attribute implements Serializable {
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/* Serial version */
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private static final long serialVersionUID = 2484220110589082382L;
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/**
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* @serial Attribute name.
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*/
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private String name;
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/**
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* @serial Attribute value
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*/
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private Object value= null;
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/**
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* Constructs an Attribute object which associates the given attribute name with the given value.
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*
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* @param name A String containing the name of the attribute to be created. Cannot be null.
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* @param value The Object which is assigned to the attribute. This object must be of the same type as the attribute.
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*
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*/
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public Attribute(String name, Object value) {
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if (name == null) {
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throw new RuntimeOperationsException(new IllegalArgumentException("Attribute name cannot be null "));
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}
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this.name = name;
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this.value = value;
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}
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/**
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* Returns a String containing the name of the attribute.
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*
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* @return the name of the attribute.
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*/
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public String getName() {
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return name;
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}
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/**
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* Returns an Object that is the value of this attribute.
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*
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* @return the value of the attribute.
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*/
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public Object getValue() {
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return value;
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}
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/**
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* Compares the current Attribute Object with another Attribute Object.
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*
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* @param object The Attribute that the current Attribute is to be compared with.
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*
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* @return True if the two Attribute objects are equal, otherwise false.
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*/
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public boolean equals(Object object) {
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if (!(object instanceof Attribute)) {
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return false;
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}
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Attribute val = (Attribute) object;
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if (value == null) {
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if (val.getValue() == null) {
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return name.equals(val.getName());
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} else {
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return false;
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}
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}
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return ((name.equals(val.getName())) &&
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(value.equals(val.getValue())));
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}
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/**
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* Returns a hash code value for this attribute.
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*
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* @return a hash code value for this attribute.
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*/
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public int hashCode() {
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return name.hashCode() ^ (value == null ? 0 : value.hashCode());
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}
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/**
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* Returns a String object representing this Attribute's value. The format of this
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* string is not specified, but users can expect that two Attributes return the
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* same string if and only if they are equal.
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*/
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public String toString() {
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return getName() + " = " + getValue();
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}
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}
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