svn-gvsig-desktop / trunk / extensions / extGeoreferencing / src / org / gvsig / georeferencing / ui / zoom / ViewRecord.java @ 18530
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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) 2007 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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package org.gvsig.georeferencing.ui.zoom; |
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import java.util.ArrayList; |
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/**
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* Historial de peticiones para poder recuperar las anteriores a
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* la actual.
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*
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* 11/01/2008
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class ViewRecord { |
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private ArrayList record = new ArrayList(); |
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private int pos = -1; |
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/**
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* Asigna la petici?n siguiente
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* @param request
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*/
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public void setRequest(Object request) { |
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record.add(++ pos, request); |
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} |
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/**
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* Obtiene la petici?n anterior
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* @return
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*/
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public Object getRequest() { |
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if(pos > 0) { |
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pos --; |
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return record.get(pos);
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} else if(pos == 0) |
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return record.get(pos);
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return null; |
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} |
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/**
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* Vacia el historial
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*/
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public void clear() { |
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record.clear(); |
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} |
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} |