- /*
- * @(#)InternalBindingKey.java 1.23 03/12/19
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package com.sun.corba.se.impl.naming.cosnaming;
-
- import org.omg.CosNaming.NameComponent;
-
- /**
- * Class InternalBindingKey implements the necessary wrapper code
- * around the org.omg.CosNaming::NameComponent class to implement the proper
- * equals() method and the hashCode() method for use in a hash table.
- * It computes the hashCode once and stores it, and also precomputes
- * the lengths of the id and kind strings for faster comparison.
- */
- public class InternalBindingKey
- {
- // A key contains a name
- public NameComponent name;
- private int idLen;
- private int kindLen;
- private int hashVal;
-
- // Default Constructor
- public InternalBindingKey() {}
-
- // Normal constructor
- public InternalBindingKey(NameComponent n)
- {
- idLen = 0;
- kindLen = 0;
- setup(n);
- }
-
- // Setup the object
- protected void setup(NameComponent n) {
- this.name = n;
- // Precompute lengths and values since they will not change
- if( this.name.id != null ) {
- idLen = this.name.id.length();
- }
- if( this.name.kind != null ) {
- kindLen = this.name.kind.length();
- }
- hashVal = 0;
- if (idLen > 0)
- hashVal += this.name.id.hashCode();
- if (kindLen > 0)
- hashVal += this.name.kind.hashCode();
- }
-
- // Compare the keys by comparing name's id and kind
- public boolean equals(java.lang.Object o) {
- if (o == null)
- return false;
- if (o instanceof InternalBindingKey) {
- InternalBindingKey that = (InternalBindingKey)o;
- // Both lengths must match
- if (this.idLen != that.idLen || this.kindLen != that.kindLen) {
- return false;
- }
- // If id is set is must be equal
- if (this.idLen > 0 && this.name.id.equals(that.name.id) == false) {
- return false;
- }
- // If kind is set it must be equal
- if (this.kindLen > 0 && this.name.kind.equals(that.name.kind) == false) {
- return false;
- }
- // Must be the same
- return true;
- } else {
- return false;
- }
- }
- // Return precomputed value
- public int hashCode() {
- return this.hashVal;
- }
- }
-