001: //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/trunk/src/org/deegree/graphics/sld/LayerFeatureConstraints.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: Aennchenstr. 19
030: 53115 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: ---------------------------------------------------------------------------*/
044: package org.deegree.graphics.sld;
045:
046: import java.util.ArrayList;
047: import java.util.List;
048:
049: import org.deegree.framework.xml.Marshallable;
050:
051: /**
052: * The LayerFeatureConstraints element is optional in a NamedLayer and allows the user to specify
053: * constraints on what features of what feature types are to be selected by the named-layer
054: * reference. It is essentially a filter that allows the selection of fewer features than are
055: * present in the named layer.
056: *
057: *
058: * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
059: * @author last edited by: $Author: mschneider $
060: *
061: * @version $Revision: 10547 $, $Date: 2008-03-11 01:40:28 -0700 (Tue, 11 Mar 2008) $
062: */
063: public class LayerFeatureConstraints implements Marshallable {
064: private List<FeatureTypeConstraint> featureTypeConstraint = null;
065:
066: /**
067: * constructor initializing the class with the <LayerFeatureConstraints>
068: */
069: public LayerFeatureConstraints(
070: FeatureTypeConstraint[] featureTypeConstraint) {
071: this .featureTypeConstraint = new ArrayList<FeatureTypeConstraint>();
072: setFeatureTypeConstraint(featureTypeConstraint);
073: }
074:
075: /**
076: * A FeatureTypeConstraint element is used to identify a feature type by a well-known name,
077: * using the FeatureTypeName element.
078: *
079: * @return the FeatureTypeConstraints as Array
080: *
081: */
082: public FeatureTypeConstraint[] getFeatureTypeConstraint() {
083: return featureTypeConstraint
084: .toArray(new FeatureTypeConstraint[featureTypeConstraint
085: .size()]);
086: }
087:
088: /**
089: * sets the <FeatureTypeConstraint>
090: *
091: * @param featureTypeConstraint
092: * the <FeatureTypeConstraint>
093: */
094: public void setFeatureTypeConstraint(
095: FeatureTypeConstraint[] featureTypeConstraint) {
096: this .featureTypeConstraint.clear();
097:
098: if (featureTypeConstraint != null) {
099: for (int i = 0; i < featureTypeConstraint.length; i++) {
100: this .featureTypeConstraint
101: .add(featureTypeConstraint[i]);
102: }
103: }
104: }
105:
106: /**
107: * adds the <FeatureTypeConstraint>
108: *
109: * @param featureTypeConstraint
110: * the <FeatureTypeConstraint>
111: */
112: public void addFeatureTypeConstraint(
113: FeatureTypeConstraint featureTypeConstraint) {
114: this .featureTypeConstraint.add(featureTypeConstraint);
115: }
116:
117: /**
118: * Removes a FeatureTypeConstraint.
119: *
120: * @param featureTypeConstraint
121: * the <FeatureTypeConstraint>
122: */
123: public void removeFeatureTypeConstraint(
124: FeatureTypeConstraint featureTypeConstraint) {
125: this .featureTypeConstraint.remove(this .featureTypeConstraint
126: .indexOf(featureTypeConstraint));
127: }
128:
129: /**
130: * returns the LayerFeatureConstraints as String.
131: *
132: * @return the LayerFeatureConstraints as String
133: */
134: public String toString() {
135: String ret = getClass().getName() + "\n";
136: ret = "featureTypeConstraint = " + featureTypeConstraint + "\n";
137:
138: return ret;
139: }
140:
141: /**
142: * exports the content of the Font as XML formated String
143: *
144: * @return xml representation of the Font
145: */
146: public String exportAsXML() {
147:
148: StringBuffer sb = new StringBuffer(1000);
149: sb.append("<LayerFeatureConstraints>");
150: for (int i = 0; i < featureTypeConstraint.size(); i++) {
151: sb.append(((Marshallable) featureTypeConstraint.get(i))
152: .exportAsXML());
153: }
154: sb.append("</LayerFeatureConstraints>");
155:
156: return sb.toString();
157: }
158:
159: }
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