@ Configurable-Beans doesn't work with JPA-EntityListeners in Spring Boot
I am having a weird problem with a custom jpa-entity listener that I created in a spring boot application. I'm trying to use the Springs mechanism @Configurable
to set up an EntityListener (as shown in Springs AuditingEntityListener
), but spring refuses to recognize my listener as soon as it is used in @EntityListeners
-Annotation on the jpa object, if it is not configured on the jpa object, the Listener gets wired / set up with spring. as it should be.
I created an example project with junit test to demonstrate the problem: https://github.com/chrisi/aopconfig/find/master
@SpringBootApplication
@EnableSpringConfigured
@EnableLoadTimeWeaving
public class Application {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
EntityListener:
/**
* This bean will NOT be instanciated by Spring but it should be configured by Spring
* because of the {@link Configurable}-Annotation.
* <p>
* The configuration only works if the <code>UnmanagedBean</code> is not used as an <code>EntityListener</code>
* via the {@link javax.persistence.EntityListeners}-Annotation.
*
* @see FooEntity
*/
@Configurable
public class UnmanagedBean {
@Autowired
private ManagedBean bean;
public int getValue() {
return bean.getValue();
}
}
Bean I want to be injected into an EntityListener / UnmanagedBean:
/**
* This bean will be instanciated/managed by Spring and will be injected into the
* {@link UnmanagedBean} in the case the <code>UnmanagedBean</code> is not used as an JPA-EntityListener.
*/
@Component
@Data
public class ManagedBean {
private int value = 42;
}
The object in which the receiver should be used:
/**
* This simple entity only purpose is to demonstrate that as soon as
* it is annotated with <code>@EntityListeners({UnmanagedBean.class})</code>
* springs configurable mechanism will not longer work on the {@link UnmanagedBean}
* and therefore the <code>ConfigurableTest.testConfigureUnmanagedBean()</code> fails.
*/
@Entity
@EntityListeners({UnmanagedBean.class}) // uncomment to make the test fail
public class FooEntity {
@Id
private Long id;
private String bar;
}
And finally, a test that shows that the wiring doesn't work as soon as the listener is used:
@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = Application.class)
public class ConfigurableTest {
/**
* This test checks if the ManagedBean was injected into the UnmanagedBean
* by Spring after it was created with <code>new</code>
*/
@Test
public void testConfigureUnmanagedBean() {
UnmanagedBean edo = new UnmanagedBean();
int val = edo.getValue();
Assert.assertEquals(42, val);
}
}
Junit test (EntityListener / ManagedBean wiring) fails abstract @EntityListeners({UnmanagedBean.class})
in FooEntity
activated.
Is this a bug or am I missing something else?
To run the test, you must use -javaagent:spring-instrument-4.1.6.RELEASE.jar
the command line and provide a jar file in your working directory.
This is a "condensed" version of the question I asked earlier: @Configurable is not recognized in SpringBoot application
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