001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/tags/2.1/src/org/deegree/framework/xml/schema/ElementReference.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2006 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstraße 19
030 53177 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042 ---------------------------------------------------------------------------*/
043 package org.deegree.framework.xml.schema;
044
045 import org.deegree.datatypes.QualifiedName;
046
047 /**
048 * Represents an element reference. The reference may be resolved or not. If it is resolved, the
049 * referenced <code>ElementDeclaration</code> is accessible, otherwise only the name of the
050 * element is available.
051 *
052 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
053 *
054 * @author last edited by: $Author: bezema $
055 *
056 * @version $Revision: 6259 $, $Date: 2007-03-20 10:15:15 +0100 (Di, 20 Mär 2007) $
057 *
058 * @since 2.0
059 */
060 public class ElementReference {
061
062 private QualifiedName elementName;
063
064 private ElementDeclaration declaration;
065
066 private boolean isResolved;
067
068 /**
069 * Creates an unresolved <code>ElementReference</code>.
070 *
071 * @param elementName
072 */
073 public ElementReference( QualifiedName elementName ) {
074 this.elementName = elementName;
075 }
076
077 public QualifiedName getName() {
078 return this.elementName;
079 }
080
081 public boolean isResolved() {
082 return this.isResolved;
083 }
084
085 public ElementDeclaration getElementDeclaration() {
086 return this.declaration;
087 }
088
089 public void resolve( ElementDeclaration declaration ) {
090 if ( isResolved() ) {
091 throw new RuntimeException( "ElementDeclaration to element '"
092 + elementName + "' has already been resolved." );
093 }
094 this.declaration = declaration;
095 this.isResolved = true;
096 }
097
098 public void resolve() {
099 if ( isResolved() ) {
100 throw new RuntimeException( "ElementDeclaration to element '"
101 + elementName + "' has already been resolved." );
102 }
103 this.isResolved = true;
104 }
105 }
106 /* ********************************************************************
107 Changes to this class. What the people have been up to:
108 $Log$
109 Revision 1.8 2006/08/29 19:54:14 poth
110 footer corrected
111
112 Revision 1.7 2006/08/24 06:39:17 poth
113 File header corrected
114
115 Revision 1.6 2006/07/12 14:46:16 poth
116 comment footer added
117
118 ********************************************************************** */