/*
* Copyright 2002-2007 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.jdbc.support.nativejdbc;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
/**
* {@link NativeJdbcExtractor} implementation that delegates to JDBC 4.0's
* <code>unwrap</code> method, as defined by {@link java.sql.Wrapper}.
*
* <p>Note: Only use this when actually running against a JDBC 4.0 driver,
* with a connection pool that supports the JDBC 4.0 API (i.e. at least accepts
* JDBC 4.0 API calls and passes them through to the underlying driver)!
*
* @author Juergen Hoeller
* @since 2.5
* @see java.sql.Wrapper#unwrap
* @see SimpleNativeJdbcExtractor
* @see org.springframework.jdbc.core.JdbcTemplate#setNativeJdbcExtractor
* @see org.springframework.jdbc.support.lob.OracleLobHandler#setNativeJdbcExtractor
*/
public class Jdbc4NativeJdbcExtractor extends NativeJdbcExtractorAdapter {
protected Connection doGetNativeConnection(Connection con) throws SQLException {
return (Connection) con.unwrap(Connection.class);
}
public Statement getNativeStatement(Statement stmt) throws SQLException {
return (Statement) stmt.unwrap(Statement.class);
}
public PreparedStatement getNativePreparedStatement(PreparedStatement ps) throws SQLException {
return (PreparedStatement) ps.unwrap(PreparedStatement.class);
}
public CallableStatement getNativeCallableStatement(CallableStatement cs) throws SQLException {
return (CallableStatement) cs.unwrap(CallableStatement.class);
}
public ResultSet getNativeResultSet(ResultSet rs) throws SQLException {
return (ResultSet) rs.unwrap(ResultSet.class);
}
}