root / trunk / libraries / libjni-gdal / src / es / gva / cit / jogr / OGRDataSource.java @ 1101
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/**********************************************************************
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* $Id: OGRDataSource.java 1101 2005-01-19 13:12:13Z igbrotru $
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*
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* Name: OGRDataSource.java
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* Project: JGDAL. Interface java to gdal (Frank Warmerdam).
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* Purpose:
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* Author: Nacho Brodin, brodin_ign@gva.es
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*
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**********************************************************************/
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/*Copyright (C) 2004 Nacho Brodin <brodin_ign@gva.es>
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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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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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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 es.gva.cit.jogr; |
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/**
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* Esta clase representa a una fuente de datos
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*
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* @author Nacho Brodin <brodin_ign@gva.es>.<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es
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* @version 0.0
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* @link http://www.gvsig.gva.es
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*/
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public class OGRDataSource extends JNIBase{ |
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private native String getNameNat(long cPtr); |
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private native long getLayerNat(long cPtr, int i); |
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private native void FreeOGRDataSource(long cPtr); |
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private native long getLayerByNameNat(long cPtr, String name); |
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private native int deleteLayerNat(long cPtr, int iLayer); //Excepciones |
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private native int testCapabilityNat(long cPtr, String odr ); |
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private native long createLayerNat(long cPtr, String pszName, |
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long poSpatialRef,
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String eGType, //OGRwkbGeometryType OGRFeatureDefn |
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String[] papszOptions); |
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private native long copyLayerNat(long cPtr, long poSrcLayer, |
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String pszNewName,
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String[] papszOptions); |
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private native long getStyleTableNat(long cPtr); |
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private native long executeSQLNat(long cPtr, String pszStatement, |
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long poSpatialFilter,
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String pszDialect );
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private native void releaseResultSetNat(long cPtr, long poResultsSet ); |
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private native int syncToDiskNat(long cPtr); //Excepciones |
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/**
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* Constructor
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* @param cPtr direcci?n de memoria al objeto OGRDataSource de C.
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*/
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public OGRDataSource(long cPtr){ |
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this.cPtr=cPtr;
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} |
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/**
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* Obtiene el nombre del datasource
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* @throws OGRException
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* @return Nombre del datasource
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*/
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public String getName()throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en getName(). El constructor ha fallado."); |
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String name = getNameNat(cPtr);
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if(name==null) |
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throw new OGRException("Error en getName(). No se ha podido obtener el nombre del datasource."); |
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return name;
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} |
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/**
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* Obtiene el n?mero de capas
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* @throws OGRException
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* @return N?mero de capas
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*/
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public int getLayerCount()throws OGRException{ |
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String msg1="Error en getLayerCount. El constructor no tuvo exito."; |
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String msg2="Error en el conteo de capas."; |
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return baseSimpleFunctions(1,msg1,msg2); |
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} |
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/**
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* Obtiene la capa indicada por el ?ndice
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* @throws OGRException
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* @return una capa
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*/
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public OGRLayer getLayer(int i)throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en getLayer(). El constructor no tuvo exito"); |
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long layer = getLayerNat(cPtr, i);
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if(layer<=0) |
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throw new OGRException("Error en getLayer(). No se ha podido obtener la capa indicada."); |
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return new OGRLayer(layer); |
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} |
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/**
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* Destructor
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*/
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protected void finalize(){ |
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if(cPtr > 0) |
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FreeOGRDataSource(cPtr); |
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} |
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/**
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*
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*/
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public OGRLayer getLayerByName(String name)throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en getLayerByName(). El constructor no tuvo exito"); |
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long ptr_name = getLayerByNameNat(cPtr, name);
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if(ptr_name<=0) |
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throw new OGRException("Error en getLayerByName(). No se ha podido obtener un puntero a un OGRLayer valido."); |
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return new OGRLayer(ptr_name); |
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} |
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/**
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*
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*/
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public void deleteLayer(int iLayer)throws OGRException{ //Excepciones |
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if(cPtr <= 0) |
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throw new OGRException("Error en deleteLayer(). El constructor no tuvo exito"); |
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int ogrerr = deleteLayerNat(cPtr, iLayer);
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lanzarExcepcion(ogrerr, "Error en deleteLayer()");
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} |
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/**
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*
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*/
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public int testCapability( String odr )throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en testCapability(). El constructor no tuvo exito"); |
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int res=-1; |
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res = testCapabilityNat(cPtr, odr); |
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if(res<0) |
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throw new OGRException("Error en testCapability(). No se ha podido obtener un valor de retorno valido."); |
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return res;
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} |
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/**
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*
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*/
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public OGRLayer createLayer(String pszName, |
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OGRSpatialReference poSpatialRef, |
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String eGType, //OGRwkbGeometryType OGRFeatureDefn |
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String[] papszOptions)throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en createLayer(). El constructor no tuvo exito"); |
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if(poSpatialRef.getPtro()<=0) |
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throw new OGRException("Error en createLayer(). Referencia del par?metro OGRSpatialReference invalida."); |
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long ptr_layer = createLayerNat(cPtr, pszName, poSpatialRef.getPtro(), eGType, papszOptions);
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if(ptr_layer<0) |
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throw new OGRException("Error en createLayer(). No se ha podido obtener una referencia valida a un OGRLayer."); |
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return new OGRLayer(ptr_layer); |
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} |
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/**
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*
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*/
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public OGRLayer copyLayer( OGRLayer poSrcLayer,
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String pszNewName,
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String[] papszOptions)throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en copyLayer(). El constructor no tuvo exito"); |
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if(poSrcLayer.getPtro()<=0) |
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throw new OGRException("Error en copyLayer(). Referencia del par?metro OGRSpatialReference invalida."); |
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long ptr_layer = copyLayerNat(cPtr, poSrcLayer.getPtro(), pszNewName, papszOptions);
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if(ptr_layer<=0) |
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throw new OGRException("Error en copyLayer(). No se ha podido obtener una referencia valida a un OGRLayer."); |
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return new OGRLayer(ptr_layer); |
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} |
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/**
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*
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*/
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public OGRStyleTable getStyleTable()throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en getStyleTable(). El constructor no tuvo exito"); |
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long ptr_styletable = getStyleTableNat(cPtr);
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if(ptr_styletable<=0) |
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throw new OGRException("Error en getStyleTable(). No se ha podido obtener una referencia valida a un OGRStyleTable."); |
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return new OGRStyleTable(ptr_styletable); |
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} |
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/**
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*
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*/
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public OGRLayer executeSQL( String pszStatement, |
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OGRGeometry poSpatialFilter, |
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String pszDialect )throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en executeSQL(). El constructor no tuvo exito"); |
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if(poSpatialFilter.getPtro()<=0) |
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throw new OGRException("Error en executeSQL(). Referencia del par?metro OGRGeometry invalida."); |
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long ptr_layer = executeSQLNat(cPtr, pszStatement, poSpatialFilter.getPtro(), pszDialect);
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if(ptr_layer<=0) |
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throw new OGRException("Error en executeSQL(). No se ha podido obtener una referencia valida a un OGRLayer."); |
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return new OGRLayer(ptr_layer); |
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} |
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/**
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*
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*/
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public void releaseResultSet( OGRLayer poResultsSet )throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en poResultsSet(). El constructor no tuvo exito"); |
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if(poResultsSet.getPtro()<=0) |
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throw new OGRException("Error en poResultsSet(). Referencia del par?metro OGRLayer invalida."); |
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releaseResultSetNat(cPtr, poResultsSet.getPtro()); |
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} |
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/**
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*
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*/
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public void syncToDisk()throws OGRException{//Excepciones |
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if(cPtr <= 0) |
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throw new OGRException("Error en syncToDisk(). El constructor no tuvo exito"); |
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int ogrerr = syncToDiskNat(cPtr);
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lanzarExcepcion(ogrerr, "Error en syncToDisk().");
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} |
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/**
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*
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*/
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public int reference()throws OGRException{ |
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String msg1="Error en reference(). El constructor no tuvo exito."; |
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String msg2="Error en reference()."; |
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return baseSimpleFunctions(6,msg1,msg2); |
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} |
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/**
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*
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*/
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public int dereference()throws OGRException{ |
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String msg1="Error en dereference(). El constructor no tuvo exito."; |
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String msg2="Error en dereference()."; |
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return baseSimpleFunctions(7,msg1,msg2); |
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} |
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/**
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*
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*/
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public int getRefCount()throws OGRException{ |
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String msg1="Error en getRefCount(). El constructor no tuvo exito."; |
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String msg2="Error en getRefCount(). No se ha obtenido un n?mero de referencias valido."; |
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return baseSimpleFunctions(8,msg1,msg2); |
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} |
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/**
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*
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*/
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public int getSummaryRefCount()throws OGRException{ |
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String msg1="Error en getSummaryRefCount(). El constructor no tuvo exito."; |
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String msg2="Error en getSummaryRefCount()."; |
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return baseSimpleFunctions(9,msg1,msg2); |
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} |
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} |
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