/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ejb.plugins.cmp.jdbc.keygen;
import java.sql.PreparedStatement;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.CallableStatement;
import org.jboss.ejb.plugins.cmp.jdbc.JDBCIdentityColumnCreateCommand;
import org.jboss.ejb.plugins.cmp.jdbc.SQLUtil;
import org.jboss.ejb.plugins.cmp.jdbc.JDBCUtil;
import org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager;
import org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCEntityCommandMetaData;
import org.jboss.ejb.EntityEnterpriseContext;
import org.jboss.deployment.DeploymentException;
/**
* Create command for use with Oracle that uses a sequence in conjuction with
* a RETURNING clause to generate keys in a single statement
*
* @author <a href="mailto:jeremy@boynes.com">Jeremy Boynes</a>
* @version $Revision: 81030 $
*/
public class JDBCOracleCreateCommand extends JDBCIdentityColumnCreateCommand
{
private String sequence;
private int jdbcType;
public void init(JDBCStoreManager manager) throws DeploymentException
{
super.init(manager);
}
protected void initEntityCommand(JDBCEntityCommandMetaData entityCommand) throws DeploymentException
{
super.initEntityCommand(entityCommand);
sequence = entityCommand.getAttribute("sequence");
if (sequence == null) {
throw new DeploymentException("Sequence must be specified");
}
}
protected void initInsertSQL()
{
jdbcType = pkField.getJDBCType().getJDBCTypes()[0];
StringBuffer sql = new StringBuffer();
sql.append("{call INSERT INTO ").append(entity.getQualifiedTableName());
sql.append(" (");
SQLUtil.getColumnNamesClause(pkField, sql)
.append(", ");
SQLUtil.getColumnNamesClause(insertFields, sql);
sql.append(")");
sql.append(" VALUES (");
sql.append(sequence+".NEXTVAL, ");
SQLUtil.getValuesClause(insertFields, sql);
sql.append(")");
sql.append(" RETURNING ");
SQLUtil.getColumnNamesClause(pkField, sql)
.append(" INTO ? }");
insertSQL = sql.toString();
if (debug) {
log.debug("Insert Entity SQL: " + insertSQL);
}
}
protected PreparedStatement prepareStatement(Connection c, String sql, EntityEnterpriseContext ctx) throws SQLException
{
return c.prepareCall(sql);
}
protected int executeInsert(int paramIndex, PreparedStatement ps, EntityEnterpriseContext ctx) throws SQLException
{
CallableStatement cs = (CallableStatement) ps;
cs.registerOutParameter(paramIndex, jdbcType);
cs.execute();
Object pk = JDBCUtil.getParameter(log, cs, paramIndex, jdbcType, pkField.getFieldType());
pkField.setInstanceValue(ctx, pk);
return 1;
}
}