svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap / src / org / gvsig / fmap / drivers / writing / JdbcWriter.java @ 20989
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package org.gvsig.fmap.drivers.writing; |
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import java.sql.Connection; |
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import java.sql.ResultSet; |
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import java.sql.ResultSetMetaData; |
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import java.sql.SQLException; |
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import org.gvsig.fmap.core.features.IRow; |
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import org.gvsig.fmap.core.features.IRowEdited; |
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import org.gvsig.fmap.drivers.exceptions.ProcessWriterVisitorException; |
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import org.gvsig.fmap.drivers.exceptions.StartWriterVisitorException; |
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import org.gvsig.fmap.drivers.exceptions.StopWriterVisitorException; |
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import org.gvsig.fmap.drivers.reading.XTypes; |
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import com.hardcode.gdbms.engine.values.Value; |
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public class JdbcWriter extends AbstractWriter { |
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Connection conn;
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ResultSet rs;
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Value[] record;
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int numRecord;
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private boolean bCreateTable; |
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private ResultSetMetaData metaData = null; |
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public JdbcWriter(){
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} |
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public void initialize(Connection conn, ResultSet rs) throws SQLException{ |
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this.conn = conn;
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this.rs = rs;
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metaData = rs.getMetaData(); |
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System.out.println("INICIO CONEXI?N DE ESCRITURA"); |
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} |
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public void preProcess() throws StartWriterVisitorException { |
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numRecord = 0;
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try {
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conn.setAutoCommit(false);
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} catch (SQLException e) { |
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throw new StartWriterVisitorException(getName(),e); |
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} |
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/* Statement st = conn.createStatement();
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if (bCreateTable) {
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try {
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st.execute("DROP TABLE " + lyrDef.getTableName() + ";");
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} catch (SQLException e1) {
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// Si no existe la tabla, no hay que borrarla.
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}
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String sqlCreate = PostGIS.getSqlCreateSpatialTable(lyrDef,
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lyrDef.getFieldsDesc(), true);
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System.out.println("sqlCreate =" + sqlCreate);
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st.execute(sqlCreate);
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} */
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} |
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public void process(IRowEdited editedRow) throws ProcessWriterVisitorException { |
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IRow row = editedRow.getLinkedRow(); |
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try {
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System.out.println("Intento escribir el registro " + |
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numRecord + " de la capa " + metaData.getTableName(1)); |
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switch (editedRow.getStatus())
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{
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case IRowEdited.STATUS_ADDED:
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record=row.getAttributes(); |
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rs.moveToInsertRow(); |
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for (int i=0; i < record.length; i++) |
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XTypes.updateValue(rs, i, record[i]); |
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rs.insertRow(); |
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break;
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case IRowEdited.STATUS_MODIFIED:
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record=row.getAttributes(); |
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rs.absolute(editedRow.getIndex()+1);
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for (int i=0; i < record.length; i++) |
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XTypes.updateValue(rs, i, record[i]); |
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rs.updateRow(); |
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break;
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case IRowEdited.STATUS_ORIGINAL:
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if (bWriteAll)
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{
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record=row.getAttributes(); |
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rs.moveToInsertRow(); |
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for (int i=0; i < record.length; i++) |
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XTypes.updateValue(rs, i, record[i]); |
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rs.insertRow(); |
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} |
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break;
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case IRowEdited.STATUS_DELETED:
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rs.absolute(editedRow.getIndex()+1);
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rs.deleteRow(); |
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break;
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} |
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numRecord++; |
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rs.next(); |
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} catch (SQLException e) { |
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System.out.println(e.getSQLState() + " " + e.getMessage()); |
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try {
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conn.rollback(); |
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} catch (SQLException e1) { |
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throw new ProcessWriterVisitorException(getName(),e1); |
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} |
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throw new ProcessWriterVisitorException(getName(),e); |
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} |
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} |
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public void postProcess() throws StopWriterVisitorException { |
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try {
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conn.commit(); |
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} catch (SQLException e) { |
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try {
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conn.rollback(); |
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} catch (SQLException e1) { |
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throw new StopWriterVisitorException(getName(),e1); |
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} |
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throw new StopWriterVisitorException(getName(),e); |
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} |
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} |
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public boolean canWriteAttribute(int sqlType) { |
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return true; |
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} |
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public String getName() { |
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return "JDBC Writer"; |
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} |
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/**
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* @return Returns the bCreateTable.
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*/
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public boolean isCreateTable() { |
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return bCreateTable;
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} |
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/**
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* @param createTable
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* The bCreateTable to set.
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*/
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public void setCreateTable(boolean createTable) { |
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bCreateTable = createTable; |
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} |
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/**
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* @return Returns the bWriteAll.
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*/
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public boolean isWriteAll() { |
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return bWriteAll;
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} |
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/**
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* @param writeAll
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* The bWriteAll to set.
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*/
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public void setWriteAll(boolean writeAll) { |
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bWriteAll = writeAll; |
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} |
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public void close() throws SQLException |
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{
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rs.close(); |
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// conn.close();
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System.out.println("CIERRO CONEXI?N DE ESCRITURA"); |
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} |
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public boolean canAlterTable() { |
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// TODO Auto-generated method stub
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return false; |
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} |
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public boolean canSaveEdits() { |
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try {
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return (rs.getConcurrency() == ResultSet.CONCUR_UPDATABLE); |
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} catch (SQLException e) { |
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e.printStackTrace(); |
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return false; |
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} |
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} |
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} |