001 //$HeadURL: svn+ssh://mschneider@svn.wald.intevation.org/deegree/base/trunk/src/org/deegree/model/feature/DefaultFeatureCollection.java $
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 Department of Geography, University of Bonn
006 and
007 lat/lon GmbH
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036 package org.deegree.model.feature;
037
038 import java.io.Serializable;
039 import java.util.HashSet;
040 import java.util.Iterator;
041 import java.util.List;
042 import java.util.Set;
043
044 import org.deegree.datatypes.QualifiedName;
045 import org.deegree.io.datastore.PropertyPathResolvingException;
046 import org.deegree.model.spatialschema.Envelope;
047 import org.deegree.model.spatialschema.GeometryException;
048 import org.deegree.ogcbase.PropertyPath;
049
050 /**
051 * Represents a {@link FeatureCollection} that only contains <code>wfs:featureTuple</code> elements (as introduced by
052 * the draft WFS 1.2 spec).
053 * <p>
054 * NOTE: Some concepts of ordinary feature collections (like adding and removing of features) do not match well to this
055 * special kind of feature collection, mostly because it uses a <code>FeatureArrayPropertyType</code> for the
056 * <code>wfs:featureTuple</code> element. Thus, many methods inherited from {@link AbstractFeatureCollection} have no
057 * clear semantic and are not available.
058 *
059 * !!!Please note that most methods are not implemented yet!!!
060 *
061 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider</a>
062 * @version $Revision: 6840 $ $Date: 2007-05-07 10:27:43 +0200 (Mo, 07 Mai 2007) $
063 */
064 public class FeatureTupleCollection extends AbstractFeatureCollection implements Serializable {
065
066 private static final long serialVersionUID = 2651676067288914826L;
067
068 private int tupleLength;
069
070 private List<Feature[]> tuples;
071
072 private Set<Feature> allFeatures = new HashSet<Feature>();
073
074 private Envelope envelope;
075
076 FeatureTupleCollection( String id, List<Feature[]> tuples, int tupleLength ) {
077 super( id );
078 this.tuples = tuples;
079 this.tupleLength = tupleLength;
080 for ( Feature[] features : tuples ) {
081 assert features.length == tupleLength;
082 for ( Feature feature : features ) {
083 allFeatures.add( feature );
084 }
085 }
086 }
087
088 /*
089 * (non-Javadoc)
090 *
091 * @see org.deegree.model.feature.FeatureCollection#clear()
092 */
093 public void clear() {
094 allFeatures.clear();
095 }
096
097 /**
098 * Returns the feature tuple at the given index.
099 *
100 * @param index
101 * @return the feature tuple at the given index
102 */
103 public Feature[] getTuple( int index ) {
104 return this.tuples.get( index );
105 }
106
107 /**
108 * Returns the number of feature tuples contained in this collection.
109 *
110 * @return the number of feature tuples contained in this collection
111 */
112 public int numTuples() {
113 return this.tuples.size();
114 }
115
116 /**
117 * Returns the length (number of features) of each tuple.
118 *
119 * @return the length (number of features) of each tuple.
120 */
121 public int tupleLength() {
122 return this.tupleLength;
123 }
124
125 @Override
126 public synchronized Envelope getBoundedBy()
127 throws GeometryException {
128
129 Envelope combinedEnvelope = this.envelope;
130
131 if ( combinedEnvelope == null && this.allFeatures.size() > 0 ) {
132 for ( Feature feature : this.allFeatures ) {
133 Envelope nextFeatureEnvelope = feature.getBoundedBy();
134 if ( combinedEnvelope == null ) {
135 combinedEnvelope = nextFeatureEnvelope;
136 } else if ( nextFeatureEnvelope != null ) {
137 combinedEnvelope = combinedEnvelope.merge( nextFeatureEnvelope );
138 }
139 }
140 this.envelope = combinedEnvelope;
141 }
142 return combinedEnvelope;
143 }
144
145 public int size() {
146 return this.tuples.size();
147 }
148
149 public void add( Feature feature ) {
150 throw new NoSuchMethodError();
151 }
152
153 public Feature getFeature( int index ) {
154 return null;
155 }
156
157 public Feature getFeature( String id ) {
158 throw new NoSuchMethodError();
159 }
160
161 public Iterator<Feature> iterator() {
162 throw new NoSuchMethodError();
163 }
164
165 public Feature remove( Feature feature ) {
166 throw new NoSuchMethodError();
167 }
168
169 public Feature remove( int index ) {
170 throw new NoSuchMethodError();
171 }
172
173 public Feature[] toArray() {
174 throw new NoSuchMethodError();
175 }
176
177 public void addProperty( FeatureProperty property ) {
178 throw new NoSuchMethodError();
179 }
180
181 public FeatureProperty getDefaultProperty( PropertyPath path )
182 throws PropertyPathResolvingException {
183 throw new NoSuchMethodError();
184 }
185
186 public void removeProperty( QualifiedName propertyName ) {
187 throw new NoSuchMethodError();
188 }
189
190 public void replaceProperty( FeatureProperty oldProperty, FeatureProperty newProperty ) {
191 throw new NoSuchMethodError();
192 }
193
194 public void setProperty( FeatureProperty property, int index ) {
195 throw new NoSuchMethodError();
196 }
197
198 /*
199 * (non-Javadoc)
200 *
201 * @see org.deegree.model.feature.Feature#cloneDeep()
202 */
203 public Feature cloneDeep()
204 throws CloneNotSupportedException {
205 throw new CloneNotSupportedException();
206 }
207
208 }