svn-gvsig-desktop / tags / v1_0_2_Build_914 / extensions / extGeoProcessing / src / com / iver / cit / gvsig / geoprocess / core / fmap / MaxFunction.java @ 12200
History | View | Annotate | Download (2.53 KB)
1 | 5412 | azabala | /*
|
---|---|---|---|
2 | * Created on 23-feb-2006
|
||
3 | *
|
||
4 | * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
||
5 | *
|
||
6 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
||
7 | *
|
||
8 | * This program is free software; you can redistribute it and/or
|
||
9 | * modify it under the terms of the GNU General Public License
|
||
10 | * as published by the Free Software Foundation; either version 2
|
||
11 | * of the License, or (at your option) any later version.
|
||
12 | *
|
||
13 | * This program is distributed in the hope that it will be useful,
|
||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
16 | * GNU General Public License for more details.
|
||
17 | *
|
||
18 | * You should have received a copy of the GNU General Public License
|
||
19 | * along with this program; if not, write to the Free Software
|
||
20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
||
21 | *
|
||
22 | * For more information, contact:
|
||
23 | *
|
||
24 | * Generalitat Valenciana
|
||
25 | * Conselleria d'Infraestructures i Transport
|
||
26 | * Av. Blasco Ib??ez, 50
|
||
27 | * 46010 VALENCIA
|
||
28 | * SPAIN
|
||
29 | *
|
||
30 | * +34 963862235
|
||
31 | * gvsig@gva.es
|
||
32 | * www.gvsig.gva.es
|
||
33 | *
|
||
34 | * or
|
||
35 | *
|
||
36 | * IVER T.I. S.A
|
||
37 | * Salamanca 50
|
||
38 | * 46005 Valencia
|
||
39 | * Spain
|
||
40 | *
|
||
41 | * +34 963163400
|
||
42 | * dac@iver.es
|
||
43 | */
|
||
44 | /* CVS MESSAGES:
|
||
45 | *
|
||
46 | * $Id$
|
||
47 | * $Log$
|
||
48 | 11226 | caballero | * Revision 1.2.2.1 2007-04-17 14:18:32 caballero
|
49 | * cambio MIN_VALUE por NEGATIVE_INFINITY
|
||
50 | *
|
||
51 | * Revision 1.2 2006/06/20 18:19:43 azabala
|
||
52 | 5919 | azabala | * refactorizaci?n para que todos los nuevos geoprocesos cuelguen del paquete impl
|
53 | *
|
||
54 | * Revision 1.1 2006/05/24 21:12:16 azabala
|
||
55 | 5412 | azabala | * primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing
|
56 | *
|
||
57 | * Revision 1.1 2006/02/26 20:55:28 azabala
|
||
58 | * *** empty log message ***
|
||
59 | *
|
||
60 | *
|
||
61 | */
|
||
62 | package com.iver.cit.gvsig.geoprocess.core.fmap; |
||
63 | |||
64 | import com.hardcode.gdbms.engine.values.NumericValue; |
||
65 | import com.hardcode.gdbms.engine.values.ValueFactory; |
||
66 | |||
67 | /**
|
||
68 | * * Sumarization function that returns min value of all field values.
|
||
69 | *
|
||
70 | * @author azabala
|
||
71 | */
|
||
72 | public class MaxFunction implements SummarizationFunction { |
||
73 | |||
74 | 11226 | caballero | double maxValue = Double.NEGATIVE_INFINITY; |
75 | 5412 | azabala | |
76 | public void process(NumericValue value) { |
||
77 | double val = value.doubleValue();
|
||
78 | if (maxValue < val) {
|
||
79 | maxValue = val; |
||
80 | } |
||
81 | } |
||
82 | |||
83 | public NumericValue getSumarizeValue() {
|
||
84 | 11226 | caballero | if(maxValue == Double.NEGATIVE_INFINITY){ |
85 | 5919 | azabala | //process method wasnt be called
|
86 | return ValueFactory.createValue(0d); |
||
87 | } |
||
88 | 5412 | azabala | return ValueFactory.createValue(maxValue);
|
89 | } |
||
90 | |||
91 | public String toString(){ |
||
92 | return "max"; |
||
93 | } |
||
94 | |||
95 | public void reset() { |
||
96 | 11226 | caballero | maxValue = Double.NEGATIVE_INFINITY;
|
97 | 5412 | azabala | |
98 | } |
||
99 | |||
100 | } |