svn-gvsig-desktop / trunk / extensions / extGraph / src / org / gvsig / graph / core / IFeatureExtractor.java @ 29994
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1 | 28552 | fpenarrubia | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | |||
23 | /*
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24 | * AUTHORS (In addition to CIT):
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25 | * 2009 Software Colaborativo (www.scolab.es) development
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26 | */
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27 | |||
28 | package org.gvsig.graph.core; |
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29 | |||
30 | import com.iver.cit.gvsig.fmap.core.IFeature; |
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31 | |||
32 | /**
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33 | * @author Francisco Jos? Pe?arrubia (fjp@scolab.es)
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34 | *
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35 | * Useful to deal with layers without fast random access (for example, PostGIS).
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36 | * DefaultFeatureExtractor may use a Layer and va.getFeature().
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37 | * CacheFeatureExtractor may use a cache.
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38 | * This way, the algorithms will be more isolated from refactoring, and porting will be easier.
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39 | */
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40 | public interface IFeatureExtractor { |
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41 | IFeature getFeature(long i);
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42 | } |