root / branches / v2_0_0_prep / libraries / libFMap_dal / src / org / gvsig / fmap / dal / feature / impl / IndexFeatureSet.java @ 36721
History | View | Annotate | Download (6.87 KB)
1 | 23950 | jiyarza | /* gvSIG. Geographic Information System of the Valencian Government
|
---|---|---|---|
2 | *
|
||
3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
|
||
4 | * of the Valencian Government (CIT)
|
||
5 | 24017 | jjdelcerro | *
|
6 | 23950 | jiyarza | * This program is free software; you can redistribute it and/or
|
7 | * modify it under the terms of the GNU General Public License
|
||
8 | * as published by the Free Software Foundation; either version 2
|
||
9 | * of the License, or (at your option) any later version.
|
||
10 | 24017 | jjdelcerro | *
|
11 | 23950 | jiyarza | * This program is distributed in the hope that it will be useful,
|
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
14 | * GNU General Public License for more details.
|
||
15 | 24017 | jjdelcerro | *
|
16 | 23950 | jiyarza | * You should have received a copy of the GNU General Public License
|
17 | * along with this program; if not, write to the Free Software
|
||
18 | 24017 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
19 | 23950 | jiyarza | * MA 02110-1301, USA.
|
20 | 24017 | jjdelcerro | *
|
21 | 23950 | jiyarza | */
|
22 | |||
23 | /*
|
||
24 | * AUTHORS (In addition to CIT):
|
||
25 | * 2008 {{Company}} {{Task}}
|
||
26 | */
|
||
27 | |||
28 | 24017 | jjdelcerro | |
29 | 24496 | jmvivo | package org.gvsig.fmap.dal.feature.impl; |
30 | 23950 | jiyarza | |
31 | 25716 | jiyarza | import java.util.ArrayList; |
32 | import java.util.Collections; |
||
33 | 23950 | jiyarza | import java.util.Iterator; |
34 | 25716 | jiyarza | import java.util.List; |
35 | 23950 | jiyarza | |
36 | 25716 | jiyarza | import org.gvsig.fmap.dal.DataStore; |
37 | 24505 | jmvivo | import org.gvsig.fmap.dal.exception.DataException; |
38 | import org.gvsig.fmap.dal.exception.ReadRuntimeException; |
||
39 | 25716 | jiyarza | import org.gvsig.fmap.dal.feature.EditableFeature; |
40 | 24496 | jmvivo | import org.gvsig.fmap.dal.feature.Feature; |
41 | import org.gvsig.fmap.dal.feature.FeatureReference; |
||
42 | 25716 | jiyarza | import org.gvsig.fmap.dal.feature.FeatureSet; |
43 | import org.gvsig.fmap.dal.feature.FeatureType; |
||
44 | 33657 | cordinyana | import org.gvsig.fmap.dal.feature.impl.featureset.DynObjectSetFeatureSetFacade; |
45 | 29289 | jmvivo | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
46 | 24496 | jmvivo | import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
47 | import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider; |
||
48 | import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider; |
||
49 | 25917 | jmvivo | import org.gvsig.fmap.dal.feature.spi.FeatureStoreProviderServices; |
50 | 24496 | jmvivo | import org.gvsig.fmap.dal.feature.spi.LongList; |
51 | import org.gvsig.fmap.dal.feature.spi.index.FeatureIndexProviderServices; |
||
52 | 33205 | cordinyana | import org.gvsig.tools.dispose.DisposableIterator; |
53 | 33657 | cordinyana | import org.gvsig.tools.dynobject.DynObjectSet; |
54 | 25716 | jiyarza | import org.gvsig.tools.exception.BaseException; |
55 | import org.gvsig.tools.visitor.Visitor; |
||
56 | 23950 | jiyarza | |
57 | |||
58 | 25716 | jiyarza | public class IndexFeatureSet implements FeatureSet, FeatureSetProvider { |
59 | 23950 | jiyarza | |
60 | LongList featureReferences = null;
|
||
61 | 25917 | jmvivo | FeatureStoreProvider storeProvider = null;
|
62 | FeatureStoreProviderServices store = null;
|
||
63 | 23950 | jiyarza | FeatureIndexProviderServices index = null;
|
64 | 25716 | jiyarza | List featureTypes = null; |
65 | 24017 | jjdelcerro | |
66 | 27525 | jmvivo | public class IndexIterator implements DisposableIterator { |
67 | 23950 | jiyarza | Iterator it = null; |
68 | 24017 | jjdelcerro | |
69 | 23950 | jiyarza | public IndexIterator(Iterator it) { |
70 | 24017 | jjdelcerro | this.it = it;
|
71 | 23950 | jiyarza | } |
72 | |||
73 | public boolean hasNext() { |
||
74 | return it.hasNext();
|
||
75 | } |
||
76 | |||
77 | public Object next() { |
||
78 | 24248 | jjdelcerro | Object oid = it.next();
|
79 | 29326 | jmvivo | FeatureReference ref = new DefaultFeatureReference(store
|
80 | .getFeatureStore(), oid); |
||
81 | 23950 | jiyarza | try {
|
82 | 29326 | jmvivo | return store.getFeatureStore().getFeatureByReference(ref);
|
83 | 23950 | jiyarza | } catch (DataException e) {
|
84 | 25917 | jmvivo | throw new ReadRuntimeException(store.getName(), e); |
85 | 23950 | jiyarza | } |
86 | } |
||
87 | |||
88 | public void remove() { |
||
89 | throw new UnsupportedOperationException(); |
||
90 | } |
||
91 | 27525 | jmvivo | |
92 | public void dispose() { |
||
93 | this.it = null; |
||
94 | } |
||
95 | 23950 | jiyarza | } |
96 | 24017 | jjdelcerro | |
97 | 27525 | jmvivo | public class FastIndexIterator implements DisposableIterator { |
98 | 23950 | jiyarza | Iterator it = null; |
99 | 25917 | jmvivo | DefaultFeature feature = null;
|
100 | 24017 | jjdelcerro | |
101 | 23950 | jiyarza | public FastIndexIterator(Iterator it) throws DataException { |
102 | 24017 | jjdelcerro | this.it = it;
|
103 | 25917 | jmvivo | feature = (DefaultFeature) store.createFeature(storeProvider |
104 | 29292 | jmvivo | .createFeatureProvider(index.getFeatureType())); |
105 | 23950 | jiyarza | } |
106 | |||
107 | public boolean hasNext() { |
||
108 | return it.hasNext();
|
||
109 | } |
||
110 | |||
111 | public Object next() { |
||
112 | 24248 | jjdelcerro | Object oid = it.next();
|
113 | 23950 | jiyarza | try {
|
114 | 25917 | jmvivo | // Long longer=new Long(((Integer)oid).longValue());
|
115 | 29326 | jmvivo | FeatureReference ref = new DefaultFeatureReference(store
|
116 | .getFeatureStore(), oid); |
||
117 | 29289 | jmvivo | FeatureProvider data = storeProvider |
118 | 29292 | jmvivo | .getFeatureProviderByReference((FeatureReferenceProviderServices) ref); |
119 | 25917 | jmvivo | |
120 | feature.setData(data); |
||
121 | |||
122 | return feature;
|
||
123 | 23950 | jiyarza | } catch (DataException e) {
|
124 | 25917 | jmvivo | throw new ReadRuntimeException(store.getName(), e); |
125 | 23950 | jiyarza | } |
126 | } |
||
127 | |||
128 | public void remove() { |
||
129 | throw new UnsupportedOperationException(); |
||
130 | } |
||
131 | 27525 | jmvivo | |
132 | public void dispose() { |
||
133 | this.it = null; |
||
134 | this.feature = null; |
||
135 | |||
136 | } |
||
137 | 24017 | jjdelcerro | } |
138 | |||
139 | 23950 | jiyarza | public IndexFeatureSet(FeatureIndexProviderServices index, LongList featureReferences) {
|
140 | this.featureReferences = featureReferences;
|
||
141 | 29326 | jmvivo | this.store = index.getFeatureStoreProviderServices();
|
142 | 25917 | jmvivo | this.storeProvider = store.getProvider();
|
143 | 23950 | jiyarza | this.index = index;
|
144 | } |
||
145 | 24017 | jjdelcerro | |
146 | 23950 | jiyarza | public boolean canFilter() { |
147 | return false; |
||
148 | } |
||
149 | |||
150 | public boolean canIterateFromIndex() { |
||
151 | return true; |
||
152 | } |
||
153 | |||
154 | public boolean canOrder() { |
||
155 | return false; |
||
156 | } |
||
157 | |||
158 | 27525 | jmvivo | public DisposableIterator fastIterator(long index) throws DataException { |
159 | 29326 | jmvivo | if (store.getFeatureStore().isEditing()) {
|
160 | 25917 | jmvivo | return this.iterator(index); |
161 | } |
||
162 | 25721 | jiyarza | return new FastIndexIterator(this.featureReferences.iterator(index)); |
163 | 23950 | jiyarza | } |
164 | |||
165 | 27525 | jmvivo | public DisposableIterator fastIterator() throws DataException { |
166 | 29326 | jmvivo | if (store.getFeatureStore().isEditing()) {
|
167 | 25917 | jmvivo | return this.iterator(); |
168 | } |
||
169 | 23950 | jiyarza | return new FastIndexIterator(this.featureReferences.iterator()); |
170 | } |
||
171 | |||
172 | public long getSize() throws DataException { |
||
173 | return featureReferences.getSize();
|
||
174 | } |
||
175 | |||
176 | 24017 | jjdelcerro | public boolean isEmpty() throws DataException { |
177 | 23950 | jiyarza | return featureReferences.isEmpty();
|
178 | } |
||
179 | |||
180 | 27525 | jmvivo | public DisposableIterator iterator() throws DataException { |
181 | 23950 | jiyarza | return new IndexIterator(this.featureReferences.iterator()); |
182 | } |
||
183 | |||
184 | 27525 | jmvivo | public DisposableIterator iterator(long index) throws DataException { |
185 | 25917 | jmvivo | return new IndexIterator(this.featureReferences.iterator(index)); |
186 | 23950 | jiyarza | } |
187 | |||
188 | 25716 | jiyarza | public void delete(Feature feature) throws DataException { |
189 | index.delete(feature); |
||
190 | 29326 | jmvivo | store.getFeatureStore().delete(feature); |
191 | 25716 | jiyarza | } |
192 | |||
193 | public FeatureType getDefaultFeatureType() {
|
||
194 | return index.getFeatureType();
|
||
195 | } |
||
196 | |||
197 | public List getFeatureTypes() { |
||
198 | List types = new ArrayList(); |
||
199 | types.add(index.getFeatureType()); |
||
200 | return Collections.unmodifiableList(types); |
||
201 | } |
||
202 | |||
203 | public void insert(EditableFeature feature) throws DataException { |
||
204 | index.insert(feature); |
||
205 | 29326 | jmvivo | store.getFeatureStore().insert(feature); |
206 | 25716 | jiyarza | } |
207 | |||
208 | public void update(EditableFeature feature) throws DataException { |
||
209 | 29326 | jmvivo | store.getFeatureStore().update(feature); |
210 | 25716 | jiyarza | // we need to re-index the feature, since its shape might have changed
|
211 | index.delete(feature); |
||
212 | index.insert(feature); |
||
213 | } |
||
214 | |||
215 | public void dispose() { |
||
216 | 25917 | jmvivo | |
217 | 25716 | jiyarza | } |
218 | |||
219 | public boolean isFromStore(DataStore store) { |
||
220 | return this.store.equals(store); |
||
221 | } |
||
222 | |||
223 | public void accept(Visitor visitor) throws BaseException { |
||
224 | 31110 | cordinyana | accept(visitor, 0);
|
225 | } |
||
226 | 25716 | jiyarza | |
227 | 31110 | cordinyana | public void accept(Visitor visitor, long firstValueIndex) |
228 | throws BaseException {
|
||
229 | DisposableIterator iterator = fastIterator(firstValueIndex); |
||
230 | |||
231 | 31074 | cordinyana | if (iterator != null) { |
232 | try {
|
||
233 | while (iterator.hasNext()) {
|
||
234 | Feature feature = (Feature) iterator.next(); |
||
235 | visitor.visit(feature); |
||
236 | } |
||
237 | } finally {
|
||
238 | iterator.dispose(); |
||
239 | } |
||
240 | 25716 | jiyarza | } |
241 | } |
||
242 | |||
243 | 33657 | cordinyana | public DynObjectSet getDynObjectSet() {
|
244 | return new DynObjectSetFeatureSetFacade(this, store.getFeatureStore()); |
||
245 | } |
||
246 | |||
247 | public DynObjectSet getDynObjectSet(boolean fast) { |
||
248 | return new DynObjectSetFeatureSetFacade(this, store.getFeatureStore(), |
||
249 | fast); |
||
250 | } |
||
251 | |||
252 | 31110 | cordinyana | } |