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java.lang.Object org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor
public class PersistenceExceptionTranslationPostProcessor
Bean post-processor that automatically applies persistence exception
translation to any bean that carries the
Repository
annotation,
adding a corresponding PersistenceExceptionTranslationAdvisor
to the exposed proxy (either an existing AOP proxy or a newly generated
proxy that implements all of the target's interfaces).
Translates native resource exceptions to Spring's
DataAccessException
hierarchy.
Autodetects beans that implement the
PersistenceExceptionTranslator
interface, which are subsequently asked to translate candidate exceptions.
All of Spring's applicable resource factories implement the
PersistenceExceptionTranslator
interface out of the box.
As a consequence, all that is usually needed to enable automatic exception
translation is marking all affected beans (such as DAOs) with the
Repository
annotation, along with defining this post-processor
as bean in the application context.
PersistenceExceptionTranslationAdvisor
,
Repository
,
DataAccessException
,
PersistenceExceptionTranslator
Field Summary |
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Fields inherited from interface org.springframework.core.Ordered |
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HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE |
Constructor Summary | |
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PersistenceExceptionTranslationPostProcessor()
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Method Summary | |
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int |
getOrder()
Return the order value of this object, with a higher value meaning greater in terms of sorting. |
Object |
postProcessAfterInitialization(Object bean,
String beanName)
Apply this BeanPostProcessor to the given new bean instance after any bean initialization callbacks (like InitializingBean's afterPropertiesSet
or a custom init-method). |
Object |
postProcessBeforeInitialization(Object bean,
String beanName)
Apply this BeanPostProcessor to the given new bean instance before any bean initialization callbacks (like InitializingBean's afterPropertiesSet
or a custom init-method). |
void |
setBeanClassLoader(ClassLoader classLoader)
Callback that supplies the bean class loader to
a bean instance. |
void |
setBeanFactory(BeanFactory beanFactory)
Callback that supplies the owning factory to a bean instance. |
void |
setRepositoryAnnotationType(Class<? extends Annotation> repositoryAnnotationType)
Set the 'repository' annotation type. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PersistenceExceptionTranslationPostProcessor()
Method Detail |
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public void setRepositoryAnnotationType(Class<? extends Annotation> repositoryAnnotationType)
Repository
annotation.
This setter property exists so that developers can provide their own (non-Spring-specific) annotation type to indicate that a class has a repository role.
repositoryAnnotationType
- the desired annotation typepublic void setBeanClassLoader(ClassLoader classLoader)
BeanClassLoaderAware
class loader
to
a bean instance.
Invoked after the population of normal bean properties but
before an initialization callback such as
InitializingBean's
InitializingBean.afterPropertiesSet()
method or a custom init-method.
setBeanClassLoader
in interface BeanClassLoaderAware
classLoader
- the owning class loader; may be null
in
which case a default ClassLoader
must be used, for example
the ClassLoader
obtained via
ClassUtils.getDefaultClassLoader()
public void setBeanFactory(BeanFactory beanFactory) throws BeansException
BeanFactoryAware
Invoked after the population of normal bean properties
but before an initialization callback such as
InitializingBean.afterPropertiesSet()
or a custom init-method.
setBeanFactory
in interface BeanFactoryAware
beanFactory
- owning BeanFactory (never null
).
The bean can immediately call methods on the factory.
BeansException
- in case of initialization errorsBeanInitializationException
public int getOrder()
Ordered
Normally starting with 0 or 1, with Ordered.LOWEST_PRECEDENCE
indicating greatest. Same order values will result in arbitrary
positions for the affected objects.
Higher value can be interpreted as lower priority, consequently the first object has highest priority (somewhat analogous to Servlet "load-on-startup" values).
Note that order values below 0 are reserved for framework purposes. Application-specified values should always be 0 or greater, with only framework components (internal or third-party) supposed to use lower values.
Ordered.LOWEST_PRECEDENCE
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException
BeanPostProcessor
afterPropertiesSet
or a custom init-method). The bean will already be populated with property values.
The returned bean instance may be a wrapper around the original.
postProcessBeforeInitialization
in interface BeanPostProcessor
bean
- the new bean instancebeanName
- the name of the bean
BeansException
- in case of errorsInitializingBean.afterPropertiesSet()
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException
BeanPostProcessor
afterPropertiesSet
or a custom init-method). The bean will already be populated with property values.
The returned bean instance may be a wrapper around the original.
In case of a FactoryBean, this callback will be invoked for both the FactoryBean
instance and the objects created by the FactoryBean (as of Spring 2.0). The
post-processor can decide whether to apply to either the FactoryBean or created
objects or both through corresponding bean instanceof FactoryBean
checks.
This callback will also be invoked after a short-circuiting triggered by a
InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation(java.lang.Class, java.lang.String)
method,
in contrast to all other BeanPostProcessor callbacks.
postProcessAfterInitialization
in interface BeanPostProcessor
bean
- the new bean instancebeanName
- the name of the bean
BeansException
- in case of errorsInitializingBean.afterPropertiesSet()
,
FactoryBean
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