/*
* @(#)$Id: ExternalElementExp.java 1566 2003-06-09 20:37:49Z kk122374 $
*
* 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.relaxns.grammar;
import org.iso_relax.dispatcher.ElementDecl;
import org.xml.sax.Locator;
import com.sun.msv.grammar.ElementExp;
import com.sun.msv.grammar.Expression;
import com.sun.msv.grammar.ExpressionPool;
import com.sun.msv.grammar.NameClass;
import com.sun.msv.grammar.NamespaceNameClass;
/**
* place holder for imported element declaration.
*
* This class derives ElementExp because "elementDecl" is a constraint over one element.
* This class also provides stub methods so that programs who are not aware to
* divide&validate can gracefully degrade.
*
* @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
*/
public class ExternalElementExp extends ElementExp
{
public NameClass getNameClass() { return nameClass; }
/** NamespaceNameClass object that matchs this namespace. */
private final NamespaceNameClass nameClass;
/** namespace URI that this ExternalElementExp belongs to. */
public final String namespaceURI;
/** name of the imported Rule */
public final String ruleName;
/** where did this reference is written in the source file.
*
* can be set to null (to reduce memory usage) at anytime.
*/
public transient Locator source;
/**
* imported ElementDecl object that actually validates this element.
* this variable is set during binding phase.
*/
public ElementDecl rule;
public ExternalElementExp(
ExpressionPool pool, String namespaceURI, String ruleName,
Locator loc )
{
// set content model to nullSet
// to make this elementExp accept absolutely nothing.
// "ignoreUndeclaredAttributes" flag is also meaningless here
// because actual validation of this element will be done by a different
// IslandVerifier.
super(Expression.nullSet,false);
this.ruleName = ruleName;
this.namespaceURI = namespaceURI;
this.nameClass = new NamespaceNameClass(namespaceURI);
this.source = loc;
/* provide dummy content model
<mixed>
<zeroOrMore>
<choice>
<attribute>
<nsName/>
</attribute>
<<<< this >>>>
</choice>
</zeroOrMore>
</mixed>
*/
this.contentModel = pool.createZeroOrMore(
pool.createMixed(
pool.createChoice(
pool.createAttribute(nameClass),
this ) ) );
}
}