svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.file / org.gvsig.fmap.dal.file.shp / src / main / java / org / gvsig / fmap / dal / store / shp / SHPFeatureProvider.java @ 44022
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.dal.store.shp; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.ReadRuntimeException; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.spi.DefaultFeatureProvider; |
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import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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public class SHPFeatureProvider extends DefaultFeatureProvider { |
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protected SHPStoreProvider store;
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protected boolean loading; |
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protected boolean loaded; |
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public SHPFeatureProvider(SHPStoreProvider store, FeatureType type) {
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super(type);
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this.store = store;
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loading = false;
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loaded = false;
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} |
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protected void load() { |
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if (loading || loaded || this.isNew()) { |
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return;
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} |
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loading = true;
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try {
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this.store.loadFeatureProviderByIndex(this); |
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} catch (DataException e) {
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throw new ReadRuntimeException(getNameForMessages(), this.getOID(), e); |
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} finally {
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loading = false;
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loaded = true;
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} |
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} |
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protected String getNameForMessages() { |
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// Solo con proposito de mostrar en mensajes de error.
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try {
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return this.store.getName(); |
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} catch(Exception ex) { |
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return "unknown"; |
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} |
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} |
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public void set(int i, Object value) { |
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this.load();
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super.set(i, value);
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} |
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public void set(String name, Object value) { |
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this.load();
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super.set(featureType.getIndex(name), value);
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} |
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public Object get(int i) { |
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this.load();
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return super.get(i); |
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} |
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public Object get(String name) { |
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this.load();
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return super.get(name); |
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} |
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public Geometry getDefaultGeometry() {
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this.load();
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Geometry geom = this.defaultGeometry;
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if( geom!=null && geom.getProjection()==null ) { |
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geom.setProjection(this.store.getProjection());
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} |
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return geom;
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} |
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public Envelope getDefaultEnvelope() {
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return this.envelope; |
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} |
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public void setOID(Object oid) { |
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this.loaded = false; |
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super.setOID(oid);
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} |
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public FeatureProvider getCopy() {
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this.load();
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return super.getCopy(); |
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} |
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} |