/*
* @(#)$Id: IDType.java,v 1.2 2002/04/07 15:42:37 kk122374 Exp $
*
* Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the proprietary information of Sun Microsystems, Inc.
* Use is subject to license terms.
*
*/
package com.sun.msv.datatype.xsd;
import com.sun.msv.datatype.xsd.NmtokenType;
import org.relaxng.datatype.ValidationContext;
/**
* very limited 'ID' type of XML Schema Part 2.
*
* <p>
* The cross-reference semantics of the ID/IDREF types must be
* implemented externally. This type by itself does not enforce such a
* constraint.
*
* <p>
* One can call the {@link #getIdType} method to enforce the cross-reference
* semantics.
*
* @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
*/
public class IDType extends NcnameType {
public static final IDType theInstance = new IDType();
protected IDType() { super("ID"); }
protected Object readResolve() {
// prevent serialization from breaking the singleton.
return theInstance;
}
public int getIdType() { return ID_TYPE_ID; }
}