Here you can find the source of prepareStatement(Connection conn, String sql)
private static final PreparedStatement prepareStatement(Connection conn, String sql) throws SQLException
//package com.java2s; /*// w w w. ja v a 2s . com * Copyright 2007 Daniel Spiewak * * 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. */ import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.SQLException; import java.sql.Statement; public class Main { private static String uri = System.getProperty("db.uri.prefix"); private static final PreparedStatement prepareStatement(Connection conn, String sql) throws SQLException { if (uri.startsWith("jdbc:hsqldb") || uri.startsWith("jdbc:postgres")) { return conn.prepareStatement(sql); } return conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS); } }