com.apress.prospringintegration.springenterprise.stocks.dao.jdbc.JdbcTemplateStockDao.java Source code

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Here is the source code for com.apress.prospringintegration.springenterprise.stocks.dao.jdbc.JdbcTemplateStockDao.java

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/*
 * Copyright 2002-2011 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 com.apress.prospringintegration.springenterprise.stocks.dao.jdbc;

import com.apress.prospringintegration.springenterprise.stocks.dao.StockDao;
import com.apress.prospringintegration.springenterprise.stocks.model.Stock;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.PreparedStatementCreator;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.support.GeneratedKeyHolder;
import org.springframework.jdbc.support.KeyHolder;
import org.springframework.stereotype.Component;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

@Component
public class JdbcTemplateStockDao implements StockDao {

    @Autowired
    private JdbcTemplate jdbcTemplate;

    @Override
    public void insert(Stock stock) {
        KeyHolder keyHolder = new GeneratedKeyHolder();
        this.jdbcTemplate.update(new PSStockCreater(stock), keyHolder);
        stock.setId(keyHolder.getKey().intValue());
    }

    @Override
    public void update(final Stock stock) {
        jdbcTemplate.update(new PreparedStatementCreator() {
            public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
                String sql = "UPDATE STOCKS SET SYMBOL = ?, INVENTORY_CODE = ?, "
                        + "PRICE_PER_SHARE = ?, QUANTITY_AVAILABLE = ?, "
                        + "EXCHANGE_ID = ?, PURCHASE_DATE = ? where ID = ?";
                PreparedStatement ps = connection.prepareStatement(sql);
                ps.setString(1, stock.getSymbol());
                ps.setString(2, stock.getInventoryCode());
                ps.setFloat(3, stock.getSharePrice());
                ps.setFloat(4, stock.getQuantityAvailable());
                ps.setString(5, stock.getExchangeId());
                ps.setDate(6, new java.sql.Date(stock.getPurchaseDate().getTime()));
                ps.setInt(7, stock.getId());
                return ps;
            }
        });
    }

    @Override
    public void delete(Stock stock) {
        jdbcTemplate.update("delete from STOCKS where id = ?", stock.getId());
    }

    @Override
    public List<Stock> findAvailableStockBySymbol(String symbol) {
        String sql = " SELECT * from STOCKS" + " WHERE SYMBOL = ? order by PRICE_PER_SHARE";
        List<Stock> ret = jdbcTemplate.query(sql, new Object[] { symbol }, new RowMapper<Stock>() {
            public Stock mapRow(ResultSet rs, int rowNum) throws SQLException {
                Stock s = new Stock(rs.getString("SYMBOL"), rs.getString("INVENTORY_CODE"),
                        rs.getString("EXCHANGE_ID"), rs.getFloat("PRICE_PER_SHARE"),
                        rs.getInt("QUANTITY_AVAILABLE"), rs.getDate("PURCHASE_DATE"));
                return s;
            }
        });

        return ret;
    }

    @Override
    public List<Stock> get() {
        List<Stock> ret = jdbcTemplate.query("select * from STOCKS", new StockMapper());
        return ret;
    }

    @Override
    public Stock findByInventoryCode(String iCode) {
        String sql = " SELECT * from STOCKS" + " WHERE INVENTORY_CODE = ?";
        return jdbcTemplate.queryForObject(sql, new Object[] { iCode }, new StockMapper());
    }
}