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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.fmap.geom.type.persistence;
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import org.gvsig.fmap.geom.GeometryException;
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import org.gvsig.fmap.geom.GeometryLocator;
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import org.gvsig.fmap.geom.GeometryManager;
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import org.gvsig.fmap.geom.type.GeometryType;
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import org.gvsig.fmap.geom.type.GeometryTypeNotSupportedException;
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import org.gvsig.tools.dynobject.DynStruct;
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import org.gvsig.tools.persistence.AbstractSinglePersistenceFactory;
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import org.gvsig.tools.persistence.PersistentState;
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import org.gvsig.tools.persistence.exception.PersistenceException;
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/**
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* Factory to persist {@link GeometryType} objects.
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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 GeometryTypePersistenceFactory extends
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AbstractSinglePersistenceFactory {
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private static final GeometryManager geometryManager = GeometryLocator
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.getGeometryManager();
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private static final String DYNCLASS_NAME = "GeometryType";
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private static final String DYNCLASS_DESCRIPTION = "gvSIG Geometry type";
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private static final String FIELD_TYPE = "type";
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private static final String FIELD_SUBTYPE = "subtype";
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/**
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* Creates a new {@link GeometryTypePersistenceFactory}. It will persist
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* the geometry type and subtype values, and use it to load
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* {@link GeometryType}s from persistence by calling
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* {@link GeometryManager#getGeometryType(int, int)}.
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*/
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public GeometryTypePersistenceFactory() {
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super(GeometryType.class, DYNCLASS_NAME, DYNCLASS_DESCRIPTION, null,
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null);
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DynStruct definition = this.getDefinition();
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definition.addDynFieldInt(FIELD_TYPE).setMandatory(true);
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definition.addDynFieldInt(FIELD_SUBTYPE).setMandatory(true);
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}
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public Object createFromState(PersistentState state)
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throws PersistenceException {
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int type = state.getInt(FIELD_TYPE);
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int subType = state.getInt(FIELD_SUBTYPE);
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try {
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return geometryManager.getGeometryType(type, subType);
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} catch (GeometryTypeNotSupportedException e) {
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throw new PersistenceException(
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"Error creating the geometry type with type = " + type
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+ ", subType = " + subType, e);
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} catch (GeometryException e) {
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throw new PersistenceException(
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"Error creating the geometry type with type = " + type
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+ ", subType = " + subType, e);
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}
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}
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public void saveToState(PersistentState state, Object obj)
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throws PersistenceException {
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GeometryType type = (GeometryType) obj;
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state.set(FIELD_TYPE, type.getType());
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state.set(FIELD_SUBTYPE, type.getSubType());
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}
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}
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