hal/src/zutil/db/handler/SimpleSQLHandler.java

/*******************************************************************************
 * Copyright (c) 2011 Ziver Koc
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 ******************************************************************************/
package zutil.db.handler;

import java.sql.SQLException;
import java.sql.Statement;
import java.sql.ResultSet;

import zutil.db.SQLResultHandler;

/**
 * Returns the first column of the first row from the query
 * 
 * @author Ziver
 */
public class SimpleSQLHandler<T> implements SQLResultHandler<T> {
	/**
	 * Is called to handle an result from an query.
	 * 
	 * @param stmt is the query
	 * @param result is the ResultSet
	 */
	@SuppressWarnings("unchecked")
	public T handleQueryResult(Statement stmt, ResultSet result) throws SQLException{
		if( result.next() )
			return (T) result.getObject(1);
		return null;
	}
}