svn-gvsig-desktop / tags / v1_0_2_Build_906 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / operations / strategies / FeatureVisitor.java @ 10972
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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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package com.iver.cit.gvsig.fmap.operations.strategies; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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/**
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* Interfaz que ofrece los m?todos para iniciar, finalizar y visitar una
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* feature.
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*/
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public interface FeatureVisitor { |
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/**
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* Recibe las geometr?as a medida que se van recorriendo en la estrategia.
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*
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* @param g Geometr?a que se recorre
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* @param index ?ndice de la geometr?a
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*
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* @throws VisitException
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*/
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void visit(IGeometry g, int index) throws VisitException; |
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/**
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* Recibe las geometr?as con su s?mbolo correpondiente
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*
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* @param g Geometr?a que se recorre
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* @param index ?ndice de la geometr?a
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* @param symbol Symbol associated to feature
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*
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* @throws VisitException
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*/
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// void visitWithSymbol(IGeometry g, int index, ISymbol symbol) throws VisitException;
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/**
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* All FeatureVisitor is linked with a call to Strategy.processXXX method.
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* It represents an iterative process over all (or some) features of a Layer.
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* This method returns a descriptive text of the process that a visitor makes.
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*
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* FIXME Internacionalizamos el mensaje???
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* @return
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*/
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String getProcessDescription();
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/**
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* M?todo invocado al finalizar las visitas con el fin de que se puedan
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* liberar los recursos reservados en start
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*
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* @param layer Capa sobre la que se actua
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*/
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void stop(FLayer layer);
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/**
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* M?todo invocado antes de las visitas para que el visitor pueda reservar
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* alg?n tipo de recurso que sea necesario
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*
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* @param layer Capa sobre la que se act?a
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*
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* @return Devuelve true si el visitor se puede aplicar sobre la capa que
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* se pasa como par?metro
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*/
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boolean start(FLayer layer);
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} |