Java tutorial
/** * Copyright 2013 Carl-Philipp Harmant * * 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 fr.cph.stock.dao; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.ibatis.session.SqlSession; import fr.cph.stock.entities.Index; /** * This class implements IDao functions and add some more. It access to the Index in DB. * * @author Carl-Philipp Harmant * */ public class IndexDaoImpl extends AbstractDao<Index> { @Override public final void insert(final Index index) { SqlSession session = getSqlSessionFactory(); try { session.insert("IndexDao.insertOneIndex", index); session.commit(); } finally { session.close(); } } @Override public final Index select(final int id) { SqlSession session = getSqlSessionFactory(); Index index = null; try { index = session.selectOne("IndexDao.selectOneIndex", id); } finally { session.close(); } return index; } /** * Get Index from DB * * @param ind * the index * @return an index */ public final Index selectOneIndexWithIdAndIndex(final Index ind) { SqlSession session = getSqlSessionFactory(); Index index = null; try { index = session.selectOne("IndexDao.selectOneIndexWithIdAndIndex", ind); } finally { session.close(); } return index; } @Override public final void update(final Index index) { SqlSession session = getSqlSessionFactory(); try { session.update("IndexDao.updateOneIndex", index); session.commit(); } finally { session.close(); } } @Override public final void delete(final Index index) { SqlSession session = getSqlSessionFactory(); try { session.delete("IndexDao.deleteOneIndex", index); session.commit(); } finally { session.close(); } } /** * Get a list of Index * * @param yahooId * the index requested * @param from * first date * @param to * second date * @return a list of Index */ public final List<Index> selectListFrom(final String yahooId, final Date from, final Date to) { SqlSession session = getSqlSessionFactory(); List<Index> indexes = null; Map<String, Object> map = new HashMap<String, Object>(); map.put("yahooId", yahooId); map.put("from", from); map.put("to", to); try { indexes = session.selectList("IndexDao.selectListIndexFromTo", map); } finally { session.close(); } return indexes; } /** * Get last Index * * @param yahooId * the index requested * @return and Index with last data */ public final Index selectLast(final String yahooId) { SqlSession session = getSqlSessionFactory(); Index index = null; try { index = session.selectOne("IndexDao.selectLastIndex", yahooId); } finally { session.close(); } return index; } }