Java example source code file (ExtendedType.java)

This example Java source code file (ExtendedType.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

extendedtype, string

The ExtendedType.java Java example source code

/*
 * reserved comment block
 * DO NOT REMOVE OR ALTER!
 */
/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * $Id: ExtendedType.java,v 1.2.4.1 2005/09/15 08:15:06 suresh_emailid Exp $
 */
package com.sun.org.apache.xml.internal.dtm.ref;

/**
 * The class ExtendedType represents an extended type object used by
 * ExpandedNameTable.
 */
public final class ExtendedType
{
    private int nodetype;
    private String namespace;
    private String localName;
    private int hash;

    /**
     * Create an ExtendedType object from node type, namespace and local name.
     * The hash code is calculated from the node type, namespace and local name.
     *
     * @param nodetype Type of the node
     * @param namespace Namespace of the node
     * @param localName Local name of the node
     */
    public ExtendedType (int nodetype, String namespace, String localName)
    {
      this.nodetype = nodetype;
      this.namespace = namespace;
      this.localName = localName;
      this.hash = nodetype + namespace.hashCode() + localName.hashCode();
    }

    /**
     * Create an ExtendedType object from node type, namespace, local name
     * and a given hash code.
     *
     * @param nodetype Type of the node
     * @param namespace Namespace of the node
     * @param localName Local name of the node
     * @param hash The given hash code
     */
    public ExtendedType (int nodetype, String namespace, String localName, int hash)
    {
      this.nodetype = nodetype;
      this.namespace = namespace;
      this.localName = localName;
      this.hash = hash;
    }

    /**
     * Redefine this ExtendedType object to represent a different extended type.
     * This is intended to be used ONLY on the hashET object. Using it elsewhere
     * will mess up existing hashtable entries!
     */
    protected void redefine(int nodetype, String namespace, String localName)
    {
      this.nodetype = nodetype;
      this.namespace = namespace;
      this.localName = localName;
      this.hash = nodetype + namespace.hashCode() + localName.hashCode();
    }

    /**
     * Redefine this ExtendedType object to represent a different extended type.
     * This is intended to be used ONLY on the hashET object. Using it elsewhere
     * will mess up existing hashtable entries!
     */
    protected void redefine(int nodetype, String namespace, String localName, int hash)
    {
      this.nodetype = nodetype;
      this.namespace = namespace;
      this.localName = localName;
      this.hash = hash;
    }

    /**
     * Override the hashCode() method in the Object class
     */
    public int hashCode()
    {
      return hash;
    }

    /**
     * Test if this ExtendedType object is equal to the given ExtendedType.
     *
     * @param other The other ExtendedType object to test for equality
     * @return true if the two ExtendedType objects are equal.
     */
    public boolean equals(ExtendedType other)
    {
      try
      {
        return other.nodetype == this.nodetype &&
                other.localName.equals(this.localName) &&
                other.namespace.equals(this.namespace);
      }
      catch(NullPointerException e)
      {
        return false;
      }
    }

    /**
     * Return the node type
     */
    public int getNodeType()
    {
      return nodetype;
    }

    /**
     * Return the local name
     */
    public String getLocalName()
    {
      return localName;
    }

    /**
     * Return the namespace
     */
    public String getNamespace()
    {
      return namespace;
    }

}