001: //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/trunk/src/org/deegree/framework/xml/schema/ElementReference.java $
002: /*---------------- FILE HEADER ------------------------------------------
003:
004: This file is part of deegree.
005: Copyright (C) 2001-2008 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: apoth $
055: *
056: * @version $Revision: 9339 $, $Date: 2007-12-27 04:31:52 -0800 (Thu, 27 Dec 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(
092: "ElementDeclaration to element '" + elementName
093: + "' has already been resolved.");
094: }
095: this .declaration = declaration;
096: this .isResolved = true;
097: }
098:
099: public void resolve() {
100: if (isResolved()) {
101: throw new RuntimeException(
102: "ElementDeclaration to element '" + elementName
103: + "' has already been resolved.");
104: }
105: this .isResolved = true;
106: }
107: }
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