001 //$HeadURL: svn+ssh://mschneider@svn.wald.intevation.org/deegree/base/trunk/src/org/deegree/model/feature/DefaultFeatureCollection.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2007 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.model.feature;
044
045 import java.io.Serializable;
046 import java.util.HashSet;
047 import java.util.Iterator;
048 import java.util.List;
049 import java.util.Set;
050
051 import org.deegree.datatypes.QualifiedName;
052 import org.deegree.io.datastore.PropertyPathResolvingException;
053 import org.deegree.model.spatialschema.Envelope;
054 import org.deegree.model.spatialschema.GeometryException;
055 import org.deegree.ogcbase.PropertyPath;
056
057 /**
058 * Represents a {@link FeatureCollection} that only contains <code>wfs:featureTuple</code>
059 * elements (as introduced by the draft WFS 1.2 spec).
060 * <p>
061 * NOTE: Some concepts of ordinary feature collections (like adding and removing of features) do not
062 * match well to this special kind of feature collection, mostly because it uses a
063 * <code>FeatureArrayPropertyType</code> for the <code>wfs:featureTuple</code> element. Thus,
064 * many methods inherited from {@link AbstractFeatureCollection} have no clear semantic and are not
065 * available.
066 *
067 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider</a>
068 * @version $Revision: 6840 $ $Date: 2007-05-07 10:27:43 +0200 (Mo, 07 Mai 2007) $
069 */
070 public class FeatureTupleCollection extends AbstractFeatureCollection implements Serializable {
071
072 private static final long serialVersionUID = 2651676067288914826L;
073
074 private int tupleLength;
075
076 private List<Feature[]> tuples;
077
078 private Set<Feature> allFeatures = new HashSet<Feature>();
079
080 private Envelope envelope;
081
082 FeatureTupleCollection( String id, List<Feature[]> tuples, int tupleLength ) {
083 super( id );
084 this.tuples = tuples;
085 this.tupleLength = tupleLength;
086 for ( Feature[] features : tuples ) {
087 assert features.length == tupleLength;
088 for ( Feature feature : features ) {
089 allFeatures.add( feature );
090 }
091 }
092 }
093
094 /**
095 * Returns the feature tuple at the given index.
096 *
097 * @param index
098 * @return the feature tuple at the given index
099 */
100 public Feature[] getTuple( int index ) {
101 return this.tuples.get( index );
102 }
103
104 /**
105 * Returns the number of feature tuples contained in this collection.
106 *
107 * @return the number of feature tuples contained in this collection
108 */
109 public int numTuples() {
110 return this.tuples.size();
111 }
112
113 /**
114 * Returns the length (number of features) of each tuple.
115 *
116 * @return the length (number of features) of each tuple.
117 */
118 public int tupleLength() {
119 return this.tupleLength;
120 }
121
122 @Override
123 public synchronized Envelope getBoundedBy()
124 throws GeometryException {
125
126 Envelope combinedEnvelope = this.envelope;
127
128 if ( combinedEnvelope == null && this.allFeatures.size() > 0 ) {
129 for ( Feature feature : this.allFeatures ) {
130 Envelope nextFeatureEnvelope = feature.getBoundedBy();
131 if ( combinedEnvelope == null ) {
132 combinedEnvelope = nextFeatureEnvelope;
133 } else if ( nextFeatureEnvelope != null ) {
134 combinedEnvelope = combinedEnvelope.merge( nextFeatureEnvelope );
135 }
136 }
137 this.envelope = combinedEnvelope;
138 }
139 return combinedEnvelope;
140 }
141
142 public int size() {
143 return this.tuples.size();
144 }
145
146 public void add( Feature feature ) {
147 throw new NoSuchMethodError();
148 }
149
150 public Feature getFeature( int index ) {
151 return null;
152 }
153
154 public Feature getFeature( String id ) {
155 throw new NoSuchMethodError();
156 }
157
158 public Iterator iterator() {
159 throw new NoSuchMethodError();
160 }
161
162 public Feature remove( Feature feature ) {
163 throw new NoSuchMethodError();
164 }
165
166 public Feature remove( int index ) {
167 throw new NoSuchMethodError();
168 }
169
170 public Feature[] toArray() {
171 throw new NoSuchMethodError();
172 }
173
174 public void addProperty( FeatureProperty property ) {
175 throw new NoSuchMethodError();
176 }
177
178 public FeatureProperty getDefaultProperty( PropertyPath path )
179 throws PropertyPathResolvingException {
180 throw new NoSuchMethodError();
181 }
182
183 public void removeProperty( QualifiedName propertyName ) {
184 throw new NoSuchMethodError();
185 }
186
187 public void replaceProperty( FeatureProperty oldProperty, FeatureProperty newProperty ) {
188 throw new NoSuchMethodError();
189 }
190
191 public void setProperty( FeatureProperty property, int index ) {
192 throw new NoSuchMethodError();
193 }
194 }