JpaModule.java 文件源码

/**
 * Injects the currently active JPA <code>EntityManager</code> into all fields and methods that are
 * annotated with <code>javax.persistence.PersistenceContext</code>
 *
 * @param testObject The test object, not null
 */
public void injectEntityManager(Object testObject, Object target) {
    Set<Field> fields = getFieldsAnnotatedWith(target.getClass(), PersistenceContext.class);
    Set<Method> methods = getMethodsAnnotatedWith(target.getClass(), PersistenceContext.class);
    if (fields.isEmpty() && methods.isEmpty()) {
        // Jump out to make sure that we don't try to instantiate the EntityManagerFactory
        return;
    }

    EntityManager entityManager = getPersistenceContext(testObject);
    setFieldAndSetterValue(target, fields, methods, entityManager);
}