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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin: 10px 0 0; margin-top: 0">Excerpts from the test case:</p> <p style="margin: 10px 0 0">@Entity<br> @SelectBeforeUpdate<br> @Audited<br> public class Book implements Serializable </p> { @Id private Long bookId; private String bookName; @ManyToOne @JoinColumn(name = "authorId", updatable = false) // note that the issue dissappears if you delete updatable=false. private Author author; @Version private Long version; ... } <p style="margin: 10px 0 0">public class ORMUnitTestCase extends BaseCoreFunctionalTestCase {<br> public void test() throws Exception </p> { // Test if unnecessary update occurs when using select-before-update for an entity which has immutable many-to-one property. Session s; Transaction t; // ---------------------------------------------------------------------------------------------- // insert s = openSession(); t = s.beginTransaction(); Author author = new Author(1L, "author1"); Book book = new Book(1L, "book1", author); s.save(author); s.save(book); t.commit(); s.close(); // ---------------------------------------------------------------------------------------------- // update s = openSession(); t = s.beginTransaction(); s.update(book); // update unchanged object, but actual update should not happen because Book has SelectBeforeUpdate annotation. t.commit(); s.close(); ... } <p style="margin: 10px 0 0">}</p> <p style="margin: 10px 0 0">After the update of unmodified Book object, there are two revisions for the object.</p> </td>
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