svn-gvsig-desktop / tags / v1_0_2_Build_898 / extensions / extGeoProcessing / src / com / iver / cit / gvsig / geoprocess / core / fmap / MaxFunction.java @ 10513
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/*
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* Created on 23-feb-2006
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*
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* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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/* CVS MESSAGES:
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*
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* $Id: MaxFunction.java 5919 2006-06-20 18:21:48Z azabala $
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* $Log$
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* Revision 1.2 2006-06-20 18:19:43 azabala
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* refactorizaci?n para que todos los nuevos geoprocesos cuelguen del paquete impl
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*
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* Revision 1.1 2006/05/24 21:12:16 azabala
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* primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing
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*
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* Revision 1.1 2006/02/26 20:55:28 azabala
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* *** empty log message ***
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*
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*
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*/
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package com.iver.cit.gvsig.geoprocess.core.fmap; |
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import com.hardcode.gdbms.engine.values.NumericValue; |
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import com.hardcode.gdbms.engine.values.ValueFactory; |
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/**
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* * Sumarization function that returns min value of all field values.
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*
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* @author azabala
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*/
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public class MaxFunction implements SummarizationFunction { |
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double maxValue = Double.MIN_VALUE; |
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public void process(NumericValue value) { |
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double val = value.doubleValue();
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if (maxValue < val) {
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maxValue = val; |
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} |
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} |
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public NumericValue getSumarizeValue() {
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if(maxValue == Double.MIN_VALUE){ |
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//process method wasnt be called
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return ValueFactory.createValue(0d); |
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} |
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return ValueFactory.createValue(maxValue);
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} |
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public String toString(){ |
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return "max"; |
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} |
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public void reset() { |
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maxValue = Double.MIN_VALUE;
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} |
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} |