Package org.springframework.aop.framework.autoproxy

Class AbstractAdvisorAutoProxyCreator

java.lang.Object

org.springframework.aop.framework.ProxyConfig

org.springframework.aop.framework.ProxyProcessorSupport

org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator

org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator

All Implemented Interfaces:

Serializable, AopInfrastructureBean, Aware, BeanClassLoaderAware, BeanFactoryAware, BeanPostProcessor, InstantiationAwareBeanPostProcessor, SmartInstantiationAwareBeanPostProcessor, Ordered

Direct Known Subclasses:

AspectJAwareAdvisorAutoProxyCreator, DefaultAdvisorAutoProxyCreator, InfrastructureAdvisorAutoProxyCreator

public abstract class AbstractAdvisorAutoProxyCreator
extends AbstractAutoProxyCreator

Generic auto proxy creator that builds AOP proxies for specific beans based on detected Advisors for each bean.

Subclasses may override the findCandidateAdvisors() method to return a custom list of Advisors applying to any object. Subclasses can also override the inherited AbstractAutoProxyCreator.shouldSkip(java.lang.Class<?>, java.lang.String) method to exclude certain objects from auto-proxying.

Advisors or advices requiring ordering should be annotated with @Order or implement the Ordered interface. This class sorts advisors using the AnnotationAwareOrderComparator. Advisors that are not annotated with @Order or don't implement the Ordered interface will be considered as unordered; they will appear at the end of the advisor chain in an undefined order.

Author:

Rod Johnson, Juergen Hoeller

See Also:

• findCandidateAdvisors()
• Serialized Form

Field Summary

Fields inherited from class org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator

DO_NOT_PROXY, logger, PROXY_WITHOUT_ADDITIONAL_INTERCEPTORS

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor	Description
AbstractAdvisorAutoProxyCreator()

Method Summary

Modifier and Type	Method	Description
protected boolean	advisorsPreFiltered()	This auto-proxy creator always returns pre-filtered Advisors.
protected void	extendAdvisors(List<Advisor> candidateAdvisors)	Extension hook that subclasses can override to register additional Advisors, given the sorted Advisors obtained to date.
protected List<Advisor>	findAdvisorsThatCanApply(List<Advisor> candidateAdvisors, Class<?> beanClass, String beanName)	Search the given candidate Advisors to find all Advisors that can apply to the specified bean.
protected List<Advisor>	findCandidateAdvisors()	Find all candidate Advisors to use in auto-proxying.
protected List<Advisor>	findEligibleAdvisors(Class<?> beanClass, String beanName)	Find all eligible Advisors for auto-proxying this class.
protected Object[]	getAdvicesAndAdvisorsForBean(Class<?> beanClass, String beanName, TargetSource targetSource)	Return whether the given bean is to be proxied, what additional advices (e.g.
protected void	initBeanFactory(ConfigurableListableBeanFactory beanFactory)
protected boolean	isEligibleAdvisorBean(String beanName)	Return whether the Advisor bean with the given name is eligible for proxying in the first place.
void	setBeanFactory(BeanFactory beanFactory)	Callback that supplies the owning factory to a bean instance.
protected List<Advisor>	sortAdvisors(List<Advisor> advisors)	Sort advisors based on ordering.

Methods inherited from class org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator

buildAdvisors, createProxy, customizeProxyFactory, determineBeanType, determineCandidateConstructors, getBeanFactory, getCacheKey, getCustomTargetSource, getEarlyBeanReference, isFrozen, isInfrastructureClass, postProcessAfterInitialization, postProcessBeforeInstantiation, postProcessProperties, predictBeanType, setAdvisorAdapterRegistry, setApplyCommonInterceptorsFirst, setCustomTargetSourceCreators, setFrozen, setInterceptorNames, shouldProxyTargetClass, shouldSkip, wrapIfNecessary

Methods inherited from class org.springframework.aop.framework.ProxyProcessorSupport

evaluateProxyInterfaces, getOrder, getProxyClassLoader, isConfigurationCallbackInterface, isInternalLanguageInterface, setBeanClassLoader, setOrder, setProxyClassLoader

Methods inherited from class org.springframework.aop.framework.ProxyConfig

copyFrom, isExposeProxy, isOpaque, isOptimize, isProxyTargetClass, setExposeProxy, setOpaque, setOptimize, setProxyTargetClass, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.springframework.beans.factory.config.BeanPostProcessor

postProcessBeforeInitialization

Methods inherited from interface org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessor

postProcessAfterInstantiation

Constructor Details

AbstractAdvisorAutoProxyCreator

public AbstractAdvisorAutoProxyCreator()

Method Details

setBeanFactory

public void setBeanFactory(BeanFactory beanFactory)

Description copied from interface: BeanFactoryAware

Callback that supplies the owning factory to a bean instance.

Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean.afterPropertiesSet() or a custom init-method.

Specified by:

setBeanFactory in interface BeanFactoryAware

Overrides:

setBeanFactory in class AbstractAutoProxyCreator

Parameters:

beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.

See Also:

• BeanInitializationException

initBeanFactory

protected void initBeanFactory(ConfigurableListableBeanFactory beanFactory)

getAdvicesAndAdvisorsForBean

@Nullable
protected Object[] getAdvicesAndAdvisorsForBean(Class<?> beanClass,
 String beanName,
 @Nullable
 TargetSource targetSource)

Description copied from class: AbstractAutoProxyCreator

Return whether the given bean is to be proxied, what additional advices (e.g. AOP Alliance interceptors) and advisors to apply.

Specified by:

getAdvicesAndAdvisorsForBean in class AbstractAutoProxyCreator

Parameters:

beanClass - the class of the bean to advise

beanName - the name of the bean

targetSource - the TargetSource returned by the AbstractAutoProxyCreator.getCustomTargetSource(java.lang.Class<?>, java.lang.String) method: may be ignored. Will be null if no custom target source is in use.

Returns:

an array of additional interceptors for the particular bean; or an empty array if no additional interceptors but just the common ones; or null if no proxy at all, not even with the common interceptors. See constants DO_NOT_PROXY and PROXY_WITHOUT_ADDITIONAL_INTERCEPTORS.

See Also:

• AbstractAutoProxyCreator.DO_NOT_PROXY
• AbstractAutoProxyCreator.PROXY_WITHOUT_ADDITIONAL_INTERCEPTORS

findEligibleAdvisors

protected List<Advisor> findEligibleAdvisors(Class<?> beanClass,
 String beanName)

Find all eligible Advisors for auto-proxying this class.

Parameters:

beanClass - the clazz to find advisors for

beanName - the name of the currently proxied bean

Returns:

the empty List, not null, if there are no pointcuts or interceptors

See Also:

• findCandidateAdvisors()
• sortAdvisors(java.util.List<org.springframework.aop.Advisor>)
• extendAdvisors(java.util.List<org.springframework.aop.Advisor>)

findCandidateAdvisors

protected List<Advisor> findCandidateAdvisors()

Find all candidate Advisors to use in auto-proxying.

Returns:

the List of candidate Advisors

findAdvisorsThatCanApply

protected List<Advisor> findAdvisorsThatCanApply(List<Advisor> candidateAdvisors,
 Class<?> beanClass,
 String beanName)

Search the given candidate Advisors to find all Advisors that can apply to the specified bean.

Parameters:

candidateAdvisors - the candidate Advisors

beanClass - the target's bean class

beanName - the target's bean name

Returns:

the List of applicable Advisors

See Also:

• ProxyCreationContext.getCurrentProxiedBeanName()

isEligibleAdvisorBean

protected boolean isEligibleAdvisorBean(String beanName)

Return whether the Advisor bean with the given name is eligible for proxying in the first place.

Parameters:

beanName - the name of the Advisor bean

Returns:

whether the bean is eligible

sortAdvisors

protected List<Advisor> sortAdvisors(List<Advisor> advisors)

Sort advisors based on ordering. Subclasses may choose to override this method to customize the sorting strategy.

Parameters:

advisors - the source List of Advisors

Returns:

the sorted List of Advisors

See Also:

• Ordered
• Order
• AnnotationAwareOrderComparator

extendAdvisors

protected void extendAdvisors(List<Advisor> candidateAdvisors)

Extension hook that subclasses can override to register additional Advisors, given the sorted Advisors obtained to date.

The default implementation is empty.

Typically used to add Advisors that expose contextual information required by some of the later advisors.

Parameters:

candidateAdvisors - the Advisors that have already been identified as applying to a given bean

advisorsPreFiltered

protected boolean advisorsPreFiltered()

This auto-proxy creator always returns pre-filtered Advisors.

Overrides:

advisorsPreFiltered in class AbstractAutoProxyCreator

Returns:

whether the Advisors are pre-filtered

See Also:

• AbstractAutoProxyCreator.getAdvicesAndAdvisorsForBean(java.lang.Class<?>, java.lang.String, org.springframework.aop.TargetSource)
• Advised.setPreFiltered(boolean)