/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.stonehenge.stocktrader.util;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.stonehenge.stocktrader.dal.DAOException;
public class StockTraderSQLUtil {
private static final Log logger = LogFactory
.getLog(StockTraderSQLUtil.class);
public static Object executeScalarNoParm(String query, Connection sqlConnection)
throws DAOException {
PreparedStatement preparedStatement = null;
try {
preparedStatement = sqlConnection.prepareStatement(query);
ResultSet rs = preparedStatement.executeQuery();
if (rs.next()) {
return rs.getObject(1);
}
return null;
} catch (SQLException e) {
throw new DAOException("", e);
} finally {
if (preparedStatement != null) {
try {
preparedStatement.close();
} catch (SQLException e) {
logger.debug("", e);
}
}
}
}
}