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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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package org.apache.openjpa.persistence.detachment;
import javax.persistence.EntityManager;
import org.apache.openjpa.persistence.detachment.model.DMCustomer;
import org.apache.openjpa.persistence.detachment.model.DMCustomerInventory;
import org.apache.openjpa.persistence.detachment.model.DMItem;
import org.apache.openjpa.persistence.test.SingleEMFTestCase;
public class TestDetachedEntityCascadePersist extends SingleEMFTestCase {
public void setUp() {
setUp(
CLEAR_TABLES,
DMCustomer.class,
DMItem.class,
DMCustomerInventory.class
);
}
public void testDetachedEntityCascadePersist() {
// Persist an item for finding later
EntityManager em = emf.createEntityManager();
DMItem item = new DMItem();
item.setName("openjpa");
item.setPrice(0.0);
em.getTransaction().begin();
em.persist(item);
// Persist a customer for finding later
DMCustomer customer = new DMCustomer();
customer.setFirstName("Open");
customer.setLastName("JPA");
em.persist(customer);
em.getTransaction().commit();
em.close();
em = emf.createEntityManager();
DMItem itemDetached = em.find(DMItem.class, item.getId());
em.close();
em = emf.createEntityManager();
DMCustomer customer2 = em.find(DMCustomer.class, customer.getId());
DMCustomerInventory customerInventory = new DMCustomerInventory();
customerInventory.setCustomer(customer2);
customerInventory.setItem(itemDetached);
customerInventory.setQuantity(20);
customer2.getCustomerInventories().add(customerInventory);
em.getTransaction().begin();
em.merge(customer2);
// At this point, itemDetached is still detached.
// The following commit causes a persist on CustomerInventory,
// which leads to a cascade-persist on the detached item.
// This cascade-persist on a detached item should be ignored,
// instead of a EntityExistsException being thrown
em.getTransaction().commit();
}
}