svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_data / src / org / gvsig / fmap / data / index / PersistentIndex.java @ 23760
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1 | 23024 | jiyarza | /* 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 | * 2008 {{Company}} {{Task}}
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26 | */
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27 | |||
28 | |||
29 | package org.gvsig.fmap.data.index; |
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30 | |||
31 | import java.io.File; |
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32 | |||
33 | /**
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34 | 23760 | jiyarza | * FIXME This specification is due to change
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35 | 23024 | jiyarza | *
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36 | 23760 | jiyarza | * -open()
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37 | * -close()
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38 | * -delete()
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39 | * -getFile()
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40 | *
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41 | 23024 | jiyarza | * @author azabala
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42 | * @author jyarza
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43 | */
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44 | public interface PersistentIndex { |
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45 | |||
46 | /**
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47 | 23760 | jiyarza | * Makes persistent all changes in the index
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48 | 23024 | jiyarza | */
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49 | public void flush() throws IndexException; |
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50 | public void flush(File f) throws IndexException; |
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51 | |||
52 | /**
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53 | 23760 | jiyarza | * Checks if the persistent store of this index exists
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54 | 23024 | jiyarza | * @return
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55 | */
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56 | public boolean exists(); |
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57 | |||
58 | /**
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59 | * Loads an index from a file
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60 | * @throws IndexException
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61 | */
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62 | public void load() throws IndexException; |
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63 | public void load(File f) throws IndexException; |
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64 | |||
65 | /**
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66 | * Frees resources of persistent data store
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67 | * (closes files, etc)
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68 | *
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69 | */
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70 | public void close(); |
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71 | |||
72 | /**
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73 | * Obtains the index File
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74 | * @return
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75 | */
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76 | public File getFile(); |
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77 | |||
78 | } |