?? travelagentbean.java
字號:
package com.titan.travelagent;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import com.titan.domain.Customer;
@Stateless
public class TravelAgentBean implements TravelAgentRemote
{
@PersistenceContext(unitName="titan") private EntityManager manager;
public int createCustomer(Customer cust)
{
System.out.println("--------------------------------------");
System.out.println("Calling createCustomer():" + cust.getFirstName());
System.out.println("Calling manager.persist()");
manager.persist(cust);
System.out.println("Ending createCustomer.");
return cust.getId();
}
public Customer findCustomer(int pKey)
{
System.out.println("--------------------------------------");
System.out.println("Calling findCustomer()");
System.out.println("manager.find()");
Customer cust = manager.find(Customer.class, pKey);
System.out.println("Returing from findCustomer(): " + cust.getFirstName());
return cust;
}
public void doMerge(Customer cust)
{
System.out.println("--------------------------------------");
System.out.println("Calling doMerge()");
manager.merge(cust);
System.out.println("Returning from doMerge()");
}
public void doFlush(int pKey)
{
System.out.println("--------------------------------------");
System.out.println("Calling doFlush()");
System.out.println("manager.find()");
Customer cust = manager.find(Customer.class, pKey);
System.out.println("cust.setName()");
cust.setFirstName("doFlush");
System.out.println("calling manager.flush()");
manager.flush();
System.out.println("returning from doFlush()");
}
public void doRemove(int pKey)
{
System.out.println("--------------------------------------");
System.out.println("Calling doRemove()");
System.out.println("manager.find()");
Customer cust = manager.find(Customer.class, pKey);
System.out.println("calling manager.remove()");
manager.remove(cust);
System.out.println("returning from doRemove()");
}
}
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