svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.api / src / main / java / org / gvsig / fmap / dal / feature / FeatureCache.java @ 40559
History | View | Annotate | Download (3.53 KB)
1 |
/**
|
---|---|
2 |
* gvSIG. Desktop Geographic Information System.
|
3 |
*
|
4 |
* Copyright (C) 2007-2013 gvSIG Association.
|
5 |
*
|
6 |
* 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 3
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* 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 |
*
|
16 |
* 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 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
19 |
* MA 02110-1301, USA.
|
20 |
*
|
21 |
* For any additional information, do not hesitate to contact us
|
22 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
23 |
*/
|
24 |
/* gvSIG. Geographic Information System of the Valencian Government
|
25 |
*
|
26 |
* Copyright (C) 2007-2008 Infrastructures and Transports Department
|
27 |
* of the Valencian Government (CIT)
|
28 |
*
|
29 |
* This program is free software; you can redistribute it and/or
|
30 |
* modify it under the terms of the GNU General Public License
|
31 |
* as published by the Free Software Foundation; either version 2
|
32 |
* of the License, or (at your option) any later version.
|
33 |
*
|
34 |
* This program is distributed in the hope that it will be useful,
|
35 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
36 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
37 |
* GNU General Public License for more details.
|
38 |
*
|
39 |
* You should have received a copy of the GNU General Public License
|
40 |
* along with this program; if not, write to the Free Software
|
41 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
42 |
* MA 02110-1301, USA.
|
43 |
*
|
44 |
*/
|
45 |
|
46 |
/*
|
47 |
* AUTHORS (In addition to CIT):
|
48 |
* 2009 {Iver T.I.} {Task}
|
49 |
*/
|
50 |
|
51 |
package org.gvsig.fmap.dal.feature; |
52 |
|
53 |
import org.gvsig.fmap.dal.exception.DataException; |
54 |
import org.gvsig.fmap.geom.primitive.Envelope; |
55 |
|
56 |
/**
|
57 |
* This class represents a vectorial cache that is used to save and retrieve
|
58 |
* {@link FeatureSet}s. First time that a {@link FeatureStore} have to retrieve
|
59 |
* data from a {@link FeatureStoreProvider} can save the {@link FeatureSet} in
|
60 |
* the cache with its envelope. Next time that the store has to access to a envelope
|
61 |
* contained in the previous envelope can retrieve the features directly
|
62 |
* from the cache and it is not necessary to retrieve data from the provider.
|
63 |
*
|
64 |
* The cache supports different scales and creates
|
65 |
*
|
66 |
* @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>
|
67 |
*/
|
68 |
public interface FeatureCache { |
69 |
|
70 |
/**
|
71 |
* Delete all the features for a concrete scale.
|
72 |
* @param scale
|
73 |
* The scale.
|
74 |
* @throws DataException
|
75 |
*/
|
76 |
public void delete(double scale) throws DataException; |
77 |
|
78 |
/**
|
79 |
* Delete all the features for all the scales in the cache system.
|
80 |
* @throws DataException
|
81 |
*/
|
82 |
public void deleteAll() throws DataException; |
83 |
|
84 |
/**
|
85 |
* Add a set of features contained in a envelope for a concrete scale.
|
86 |
* @param featureSet
|
87 |
* The feature set retrieved from the server.
|
88 |
* @throws DataException
|
89 |
*/
|
90 |
public void addFeatures(FeatureSet featureSet, FeatureStore featureStore) throws DataException; |
91 |
|
92 |
/**
|
93 |
* Return a feature set form a concrete envelope and a scale.
|
94 |
* @param envelope
|
95 |
* The envelope.
|
96 |
* @param scale
|
97 |
* The scale.
|
98 |
* @return
|
99 |
* A feature set contained in the evelope.
|
100 |
* @throws DataException
|
101 |
*/
|
102 |
public FeatureSet getFeatureSet(Envelope envelope, double scale) throws DataException; |
103 |
} |
104 |
|