Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2014 abel533@gmail.com * * 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 com.tiamaes.mybatis.test.rowbounds; import com.tiamaes.mybatis.PageHelper; import com.tiamaes.mybatis.PageInfo; import com.tiamaes.mybatis.Pagination; import com.tiamaes.mybatis.mapper.CountryMapper; import com.tiamaes.mybatis.model.Country; import com.tiamaes.mybatis.util.MybatisRowBoundsHelper; import org.apache.ibatis.session.RowBounds; import org.apache.ibatis.session.SqlSession; import org.junit.Test; import java.util.HashMap; import java.util.List; import java.util.Map; import static org.junit.Assert.assertEquals; public class RowBoundsTest { /** * Mapper??RowBounds???xml?? * <p/> * RowBounds??count?Page? * <p/> * ??startPagestartPage */ @Test public void testMapperWithRowBounds() { SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession(); CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class); try { //?110?count List<Country> list = countryMapper.selectAll(new RowBounds(1, 10)); //PageInfo? PageInfo<Country> page = new PageInfo<Country>(list); assertEquals(10, list.size()); assertEquals(183, page.getTotal()); //?? assertEquals(1, list.get(0).getId()); assertEquals(10, list.get(list.size() - 1).getId()); //?1010??count list = countryMapper.selectAll(new RowBounds(10, 10)); assertEquals(10, list.size()); assertEquals(183, ((Pagination<?>) list).getTotal()); //?? assertEquals(91, list.get(0).getId()); assertEquals(100, list.get(list.size() - 1).getId()); //?320?count list = countryMapper.selectAll(new RowBounds(6, 20)); assertEquals(20, list.size()); assertEquals(183, ((Pagination<?>) list).getTotal()); //?? assertEquals(101, list.get(0).getId()); assertEquals(120, list.get(list.size() - 1).getId()); } finally { sqlSession.close(); } } /** * ???RowBoundsRowBounds?count * ??count?? * ?count?startPage * <p/> * ?startPagestartPage?startPage?? */ @Test public void testNamespaceWithRowBounds() { SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession(); try { //?010? List<Country> list = sqlSession.selectList("selectAll", null, new RowBounds(1, 10)); assertEquals(10, list.size()); assertEquals(183, ((Pagination<?>) list).getTotal()); //?? assertEquals(1, list.get(0).getId()); assertEquals(10, list.get(list.size() - 1).getId()); //?1010? list = sqlSession.selectList("selectAll", null, new RowBounds(10, 10)); assertEquals(10, list.size()); assertEquals(183, ((Pagination<?>) list).getTotal()); //?? assertEquals(91, list.get(0).getId()); assertEquals(100, list.get(list.size() - 1).getId()); //?2020? list = sqlSession.selectList("selectAll", null, new RowBounds(6, 20)); assertEquals(20, list.size()); assertEquals(183, ((Pagination<?>) list).getTotal()); //?? assertEquals(101, list.get(0).getId()); assertEquals(120, list.get(list.size() - 1).getId()); } finally { sqlSession.close(); } } @Test public void testNamespaceWithRowBounds2() { SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession(); try { //?010? List<Country> list = sqlSession.selectList("selectIf", null, new RowBounds(1, 10)); assertEquals(10, list.size()); assertEquals(183, ((Pagination<?>) list).getTotal()); //?? assertEquals(1, list.get(0).getId()); assertEquals(10, list.get(list.size() - 1).getId()); Map<String, Object> map = new HashMap<String, Object>(); map.put("id", 10); //?1010? list = sqlSession.selectList("selectIf", map, new RowBounds(10, 10)); assertEquals(10, list.size()); assertEquals(173, ((Pagination<?>) list).getTotal()); //?? assertEquals(101, list.get(0).getId()); assertEquals(110, list.get(list.size() - 1).getId()); } finally { sqlSession.close(); } } @Test public void testNamespaceWithRowBounds3() { SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession(); try { //?010? PageHelper.startPage(1, 10); List<Country> list = sqlSession.selectList("selectIf", null); assertEquals(10, list.size()); assertEquals(183, ((Pagination<?>) list).getTotal()); //?? assertEquals(1, list.get(0).getId()); assertEquals(10, list.get(list.size() - 1).getId()); Map<String, Object> map = new HashMap<String, Object>(); map.put("id", 10); //?1010? PageHelper.startPage(10, 10); list = sqlSession.selectList("selectIf", map); assertEquals(10, list.size()); assertEquals(173, ((Pagination<?>) list).getTotal()); //?? assertEquals(101, list.get(0).getId()); assertEquals(110, list.get(list.size() - 1).getId()); IdBean country = new IdBean(); //?1010? PageHelper.startPage(10, 10); list = sqlSession.selectList("selectIf", country); assertEquals(10, list.size()); assertEquals(183, ((Pagination<?>) list).getTotal()); //?? assertEquals(91, list.get(0).getId()); assertEquals(100, list.get(list.size() - 1).getId()); } finally { sqlSession.close(); } } /** * Mapper?PageHelper.startPage??Mapper?? */ @Test public void testWithRowboundsAndCountTrue() { SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession(); CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class); try { //limit=0,?count,????rounbounds?count?-1 //?-1 List<Country> list = countryMapper.selectAll(new RowBounds(1, 0)); PageInfo<Country> page = new PageInfo<Country>(list); assertEquals(0, list.size()); assertEquals(183, page.getTotal()); //pageSize<0? list = countryMapper.selectAll(new RowBounds(1, -100)); page = new PageInfo<Country>(list); assertEquals(0, list.size()); assertEquals(183, page.getTotal()); } finally { sqlSession.close(); } } class IdBean { private Integer id; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } } }