Java tutorial
/** * Copyright 2015-2018 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.mybatis.scripting.freemarker; import org.apache.ibatis.exceptions.PersistenceException; import org.apache.ibatis.io.Resources; import org.apache.ibatis.jdbc.ScriptRunner; import org.apache.ibatis.mapping.Environment; import org.apache.ibatis.session.Configuration; import org.apache.ibatis.session.SqlSession; import org.apache.ibatis.session.SqlSessionFactory; import org.apache.ibatis.session.SqlSessionFactoryBuilder; import org.apache.ibatis.transaction.TransactionFactory; import org.apache.ibatis.transaction.jdbc.JdbcTransactionFactory; import org.hsqldb.jdbc.JDBCDataSource; import org.junit.jupiter.api.Assertions; import org.junit.jupiter.api.BeforeAll; import org.junit.jupiter.api.Test; import java.io.Reader; import java.sql.Connection; import java.util.ArrayList; import java.util.List; /** * Test of using FreeMarker to generate prepared statements parameters. * * @author elwood */ public class PreparedParamsTest { protected static SqlSessionFactory sqlSessionFactory; @BeforeAll public static void setUp() throws Exception { Class.forName("org.hsqldb.jdbcDriver"); JDBCDataSource dataSource = new JDBCDataSource(); dataSource.setUrl("jdbc:hsqldb:mem:db3"); dataSource.setUser("sa"); dataSource.setPassword(""); try (Connection conn = dataSource.getConnection()) { try (Reader reader = Resources.getResourceAsReader("org/mybatis/scripting/freemarker/create-db.sql")) { ScriptRunner runner = new ScriptRunner(conn); runner.setLogWriter(null); runner.setErrorLogWriter(null); runner.runScript(reader); conn.commit(); } } TransactionFactory transactionFactory = new JdbcTransactionFactory(); Environment environment = new Environment("development", transactionFactory, dataSource); // You can call configuration.setDefaultScriptingLanguage(FreeMarkerLanguageDriver.class) // after this to use FreeMarker driver by default. Configuration configuration = new Configuration(environment); configuration.addMapper(PreparedParamsMapper.class); sqlSessionFactory = new SqlSessionFactoryBuilder().build(configuration); } @Test public void testInCall() { try (SqlSession sqlSession = sqlSessionFactory.openSession()) { PreparedParamsMapper mapper = sqlSession.getMapper(PreparedParamsMapper.class); List<Name> names = mapper.findByNames(new ArrayList<String>() { private static final long serialVersionUID = 1L; { add("Pebbles"); add("Barney"); add("Betty"); } }); Assertions.assertTrue(names.size() == 3); } } /** * PersistenceException will be thrown with cause of UnsupportedOperationException */ @Test public void testParamsObjectCall() { try (SqlSession sqlSession = sqlSessionFactory.openSession()) { final PreparedParamsMapper mapper = sqlSession.getMapper(PreparedParamsMapper.class); Assertions.assertThrows(PersistenceException.class, () -> { mapper.findUsingParamsObject(new PreparedParam()); }); } } @Test public void testNoParamsCall() { try (SqlSession sqlSession = sqlSessionFactory.openSession()) { PreparedParamsMapper mapper = sqlSession.getMapper(PreparedParamsMapper.class); Name name = mapper.findUsingParams(new PreparedParam.InnerClass()); Assertions.assertTrue(name != null && name.getFirstName().equals("Wilma")); } } }