Attribute.java |
/* * JBoss, the OpenSource J2EE webOS * * Distributable under LGPL license. * See terms of license at gnu.org. */ package javax.management; import java.io.Serializable; /** * A representation of an MBean attribute. It is a pair, * a {@link #getName() Name} and a {@link #getValue() Value}.<p> * * An Attribute is returned by a getter operation or passed to a * a setter operation. * * @author <a href="mailto:juha@jboss.org">Juha Lindfors</a>. * @author <a href="mailto:Adrian.Brock@HappeningTimes.com">Adrian Brock</a>. * @version $Revision: 1.6 $ * * <p><b>Revisions:</b> * <p><b>20020730 Adrian Brock:</b> * <ul> * <li> Serialization </li> * </ul> * <p><b>20020930 Juha Lindfors:</b> * <ul> * <li> Overrode hashCode() to return same hash for objects that are equal</li> * <li> Removed 'instanceof' from equals() as it tends to break the symmetricity * requirement when subclasses are involved </li> * </ul> * */ public class Attribute extends Object implements Serializable { // Constants ----------------------------------------------------- private static final long serialVersionUID = 2484220110589082382L; // Attributes -------------------------------------------------------- /** * The name of the attribute. */ private String name = null; /** * The value of the attribute. */ private Object value = null; // Constructors -------------------------------------------------- /** * Contruct a new attribute given a name and value. * * @param name the name of the attribute. * @param value the value of the attribute. */ public Attribute(String name, Object value) { this.name = name; this.value = value; } // Public -------------------------------------------------------- /** * Retrieves the name of the attribute. * * @return the name of the attribute. */ public String getName() { return name; } /** * Retrieves the value of the attribute. * * @return the value of the attribute. */ public Object getValue() { return value; } // Object overrides ---------------------------------------------- /** * Compares two attributes for equality. * * @return true when the name value objects are equal, false otherwise. */ public boolean equals(Object object) { if (object == null) return false; if (!(object.getClass().equals(this.getClass()))) return false; Attribute attr = (Attribute) object; return (name.equals(attr.getName()) && value.equals(attr.getValue())); } public int hashCode() { return name.hashCode(); } /** * @return human readable string. */ public String toString() { StringBuffer buffer = new StringBuffer(50); buffer.append(getClass().getName()).append(":"); buffer.append(" name=").append(getName()); buffer.append(" value=").append(getValue()); return buffer.toString(); } }
Attribute.java |