package org.apache.ojb.broker.prevayler.demo;
/* Copyright 2003-2005 The Apache Software Foundation
*
* 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.
*/
import org.apache.ojb.broker.PersistenceBroker;
import org.apache.ojb.broker.PersistenceBrokerException;
import org.apache.ojb.tutorial1.Product;
/**
* Insert the type's description here.
* Creation date: (04.03.2001 10:34:15)
* @author Thomas Mahler
*/
public class UCEnterNewProduct extends AbstractUseCase
{
/**
* UCEnterNewProduct constructor comment.
*/
public UCEnterNewProduct(PersistenceBroker broker)
{
super(broker);
}
/** perform this use case*/
public void apply()
{
// this will be our new object
Product newProduct = new Product();
// thma: attention, no sequence numbers yet for ojb/prevalyer
newProduct.setId((int)System.currentTimeMillis());
// now read in all relevant information and fill the new object:
System.out.println("please enter a new product");
String in = readLineWithMessage("enter name:");
newProduct.setName(in);
in = readLineWithMessage("enter price:");
newProduct.setPrice(Double.parseDouble(in));
in = readLineWithMessage("enter available stock:");
newProduct.setStock(Integer.parseInt(in));
// now perform persistence operations
try
{
// 1. open transaction
broker.beginTransaction();
// 2. make the new object persistent
broker.store(newProduct);
broker.commitTransaction();
}
catch (PersistenceBrokerException ex)
{
// if something went wrong: rollback
broker.abortTransaction();
System.out.println(ex.getMessage());
ex.printStackTrace();
}
}
/** get descriptive information on use case*/
public String getDescription()
{
return "Enter a new product";
}
}