SqlMapItemDao.java

/*
Copyright 2009 Ramnivas Laddad

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.springframework.samples.jpetstore.dao.ibatis;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.dao.DataAccessException;
import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
import org.springframework.samples.jpetstore.dao.ItemDao;
import org.springframework.samples.jpetstore.domain.Item;
import org.springframework.samples.jpetstore.domain.LineItem;
import org.springframework.samples.jpetstore.domain.Order;

public class SqlMapItemDao extends SqlMapClientDaoSupport implements ItemDao {

  public void updateQuantity(Order order) throws DataAccessException {
    for (int i = 0; i < order.getLineItems().size(); i++) {
      LineItem lineItem = (LineItem) order.getLineItems().get(i);
      String itemId = lineItem.getItemId();
      Integer increment = new Integer(lineItem.getQuantity());
      Map param = new HashMap(2);
      param.put("itemId", itemId);
      param.put("increment", increment);
      getSqlMapClientTemplate().update("updateInventoryQuantity", param, 1);
    }
  }

  public boolean isItemInStock(String itemId) throws DataAccessException {
    Integer i = (Integer) getSqlMapClientTemplate().queryForObject("getInventoryQuantity", itemId);
    return (i != null && i.intValue() > 0);
  }

  public List getItemListByProduct(String productId) throws DataAccessException {
    return getSqlMapClientTemplate().queryForList("getItemListByProduct", productId);
  }

  public Item getItem(String itemId) throws DataAccessException {
    Item item = (Item) getSqlMapClientTemplate().queryForObject("getItem", itemId);
		if (item != null) {
			Integer qty = (Integer) getSqlMapClientTemplate().queryForObject("getInventoryQuantity", itemId);
			item.setQuantity(qty.intValue());
		}
    return item;
  }

}