@Stateless public class OrderEntry { @PersistenceContext EntityManager em; public void enterOrder(int custID, Order newOrder) { Customer cust = (Customer)em.find("Customer", custID); cust.getOrders().add(newOrder); newOrder.setCustomer(cust); } } OrderEntryã¯ã©ã¹ã¯ãã¢ãã¼ãã¼ã·ã§ã³@Statelessããããã¨ããã¹ãã¼ãã¬ã¹ãªã»ãã·ã§ã³ã»ãã¼ã³ã¨ãã¦åä½ãããã¨ã示ããã¦ãã¾ããã¾ãã@PersistentContextã«ãã£ã¦ãEJB 3.0ããå°å ¥ããããã¼ã·ã¹ã¿ã³ã¹APIã§ããEntityManagerãOrderEntryã»ã
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One of the main features of the new Java Persistence API that was introduced with the Java EE 5 platform is that you can plug in any persistence provider that you want. The Sun Java System Application Server 9 ships with Oracles's Toplink persistence provider. In this tutorial, we will install the Hibernate persistence provider on the application server and use it to develop a quick application th
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