dbtransactionfactory.java

Enjoy Web Dev With Tapestry 一书的源代码

package com.ttdev.bank;

import java.sql.*;

import javax.naming.*;
import javax.sql.*;

public class DBTransactionFactory implements SystemTransactionFactory {
	public SystemTransaction start() {
		try {
			Context context = new InitialContext();
			DataSource ds = (DataSource) context.lookup("java:comp/env/jdbc/bankDataSource");
			Connection conn = ds.getConnection();
			conn.setTransactionIsolation(Connection.TRANSACTION_SERIALIZABLE);
			return new DBTransaction(conn);
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}
}