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/*
* $Id: ExtendedType.java,v 1.8 2010-11-01 04:34:38 joehw 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;
}
}