春數據 - JPA，定製庫不工作

我想一個方法添加到所有JPA庫和我跟着manual並創建了以下類：春數據 - JPA，定製庫不工作

@NoRepositoryBean 
interface BillingEntityJPARepository<T, ID extends Serializable> extends JpaRepository<T, ID> { 

    /** 
     * @return 
     */ 
     public Set<T> findAllWithoutNullableObject(Class<T> clazz); 
} 

public class BillingEntityJPARepositoryImpl<T, ID extends Serializable> extends SimpleJpaRepository<T, ID> implements BillingEntityJPARepository<T, ID> { 

    @PersistenceContext(type = PersistenceContextType.EXTENDED) 
    private EntityManager entityManager; 

    @Autowired 
    private NullObjectsCache nullObjectsCache; 

    /** 
    * @param domainClass 
    * @param em 
    */ 
    public BillingEntityJPARepositoryImpl(Class<T> domainClass, EntityManager em) { 
    super(domainClass, em); 
    } 

    /** 
    * {@inheritDoc} 
    */ 
    @Override 
    public Set<T> findAllWithoutNullableObject(Class<T> clazz) { 
    //... 
    } 

} 

public class BillingEntityJPARepositoryFactoryBean<R extends JpaRepository<T, I>, T, I extends Serializable> extends JpaRepositoryFactoryBean<R, T, I> { 

/** 
* {@inheritDoc} 
*/ 
protected RepositoryFactorySupport createRepositoryFactory(EntityManager entityManager) { 
    return new BillingEntityJPARepositoryFactory(entityManager); 
} 

private static class BillingEntityJPARepositoryFactory<T, I extends Serializable> extends JpaRepositoryFactory { 

private EntityManager entityManager; 

/** 
* @param entityManager 
*/ 
public BillingEntityJPARepositoryFactory(EntityManager entityManager) { 
    super(entityManager); 
    this.entityManager = entityManager; 
} 

/** 
* {@inheritDoc} 
*/ 
protected Object getTargetRepository(RepositoryMetadata metadata) { 
    return new BillingEntityJPARepositoryImpl<T, I>((Class<T>) metadata.getDomainClass(), entityManager); 
} 

/** 
* {@inheritDoc} 
*/ 
protected Class<?> getRepositoryBaseClass(RepositoryMetadata metadata) { 
    return BillingEntityJPARepository.class; 
    } 
    } 
}

而且我修改庫配置：

<repositories base-package="xx.yy.billing.domain.repository.jpa" entity-manager-factory-ref="entityManagerFactory" factory-class="xx.yy.billing.domain.repository.jpa.BillingEntityJPARepositoryFactoryBean"/>

最後我讓所有存儲庫接口擴展BillingEntityJPARepository，現在每當我使用任何存儲庫時，一切正常，除非我調用在BillingEntityJPARepository（findAllWithoutNullableObject）中定義的方法，它會給我以下例外：

Caused by: java.lang.IllegalAccessException: Class org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor can not access a member of class com.colureware.billing.domain.repository.jpa.BillingEntityJPARepository with modifiers "public abstract" 
at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:95) 
at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(AccessibleObject.java:261) 
at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:253) 
at java.lang.reflect.Method.invoke(Method.java:594) 
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:368) 
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:349) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:155) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) 
... 61 more

任何想法？

來源

2012-05-27 Yazan Jaber

它是一個愚蠢的錯誤，我忘記了BillingEntityJPARepository聲明中的public修飾符。

來源

2012-05-27 11:31:33

春數據 - JPA，定製庫不工作

回答

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