svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / featureset / FastEditedIterator.java
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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.feature.impl.featureset; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.impl.DefaultEditableFeature; |
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import org.gvsig.fmap.dal.feature.impl.DefaultFeature; |
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import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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import org.gvsig.tools.exception.BaseException; |
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/**
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* Iterator implementation which shares the returned Feature object instance.
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*
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* @author gvSIG Team
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* @version $Id$
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*/
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public class FastEditedIterator extends EditedIterator { |
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private DefaultFeature myFeature;
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public FastEditedIterator(DefaultFeatureSet featureSet, long index, long elements) |
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throws DataException {
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super(featureSet, index, elements);
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} |
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@Override
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protected DefaultFeature createFeature(FeatureProvider data) throws DataException { |
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if(myFeature == null){ |
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myFeature = new DefaultFeature(fset.store);
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} |
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DefaultFeature f = this.featureManager.get(data);
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// DefaultFeature f = null;
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// try {
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// FeatureReference ref = new DefaultFeatureReference(fset.store, data);
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// f = (DefaultFeature) featureManager.get(ref, fset.store);
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// } catch (DataException e) {
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// RuntimeException ex = new RuntimeException();
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// e.initCause(e);
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// throw ex;
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// }
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if (f == null) { |
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this.myFeature.setData(data);
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} else {
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// TODO Sacamos una copia del data o no???
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this.myFeature.setData(f.getData().getCopy());
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} |
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if (this.fset.transform.isEmpty()) { |
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return myFeature;
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} else {
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if (f == null) { |
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myFeature = (DefaultFeature) |
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this.fset.transform.applyTransform(myFeature,
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fset.getDefaultFeatureType()); |
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} else {
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/*
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* In this case "f != null" the data comes from the featureManager,
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* so it is data inserted/updated by the user, so we must
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* overwrite the data after applying the transformations
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* because the transformations can be "Adding field"
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* and are necessary in some cases:
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*/
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DefaultFeature saved_feat = (DefaultFeature) myFeature.getCopy(); |
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myFeature = (DefaultFeature) |
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this.fset.transform.applyTransform(myFeature,
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fset.getDefaultFeatureType()); |
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myFeature = overwrite(myFeature, saved_feat); |
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} |
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return myFeature;
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} |
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} |
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private DefaultFeature overwrite(
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DefaultFeature old_feat, |
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DefaultFeature new_feat) { |
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DefaultEditableFeature resp = (DefaultEditableFeature) old_feat.getEditable(); |
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FeatureType fty = new_feat.getData().getType(); |
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FeatureAttributeDescriptor[] atts = fty.getAttributeDescriptors();
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for (int i=0; i<atts.length; i++) { |
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try {
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resp.set(atts[i].getName(), new_feat.get(atts[i].getName())); |
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} catch (Exception exc) { |
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// Field not found
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} |
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} |
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return (DefaultFeature) resp.getNotEditableCopy();
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} |
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@Override
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public void remove() { |
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super.remove();
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myFeature = new DefaultFeature(fset.store);
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} |
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@Override
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protected void doDispose() throws BaseException { |
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super.doDispose();
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myFeature = null;
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} |
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} |