/*
* Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.sun.xml.internal.rngom.parse.host;
import com.sun.xml.internal.rngom.ast.builder.Annotations;
import com.sun.xml.internal.rngom.ast.om.Location;
/**
*
* @author
* Kohsuke Kawaguchi (kk@kohsuke.org)
*/
public class Base {
protected AnnotationsHost cast( Annotations ann ) {
if(ann==null)
return nullAnnotations;
else
return (AnnotationsHost)ann;
}
protected LocationHost cast( Location loc ) {
if(loc==null)
return nullLocation;
else
return (LocationHost)loc;
}
private static final AnnotationsHost nullAnnotations = new AnnotationsHost(null,null);
private static final LocationHost nullLocation = new LocationHost(null,null);
}