java.lang.Object | ||
↳ | org.springframework.aop.framework.ProxyConfig | |
↳ | org.springframework.aop.framework.AbstractSingletonProxyFactoryBean |
Known Direct Subclasses |
Convenient proxy factory bean superclass for proxy factory beans that create only singletons.
Manages pre- and post-interceptors (references, rather than
interceptor names, as in ProxyFactoryBean
) and provides
consistent interface management.
Public Constructors | |||||||||||
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Public Methods | |||||||||||
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Invoked by a BeanFactory after it has set all bean properties supplied
(and satisfied BeanFactoryAware and ApplicationContextAware).
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Return an instance (possibly shared or independent) of the object
managed by this factory.
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Return the type of object that this FactoryBean creates,
or
null if not known in advance. | |||||||||||
Is the object managed by this factory a singleton? That is,
will
getObject() always return the same object
(a reference that can be cached)?
NOTE: If a FactoryBean indicates to hold a singleton object,
the object returned from | |||||||||||
Specify the AdvisorAdapterRegistry to use.
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Callback that supplies the bean
class loader to
a bean instance. | |||||||||||
Set additional interceptors (or advisors) to be applied after the
implicit transaction interceptor.
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Set additional interceptors (or advisors) to be applied before the
implicit transaction interceptor, e.g.
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Set the ClassLoader to generate the proxy class in.
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Specify the set of interfaces being proxied.
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Set the target object, that is, the bean to be wrapped with a transactional proxy.
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Protected Methods | |||||||||||
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Create the "main" interceptor for this proxy factory bean.
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Determine a TargetSource for the given target (or TargetSource).
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[Expand]
Inherited Methods | |||||||||||
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From class
org.springframework.aop.framework.ProxyConfig
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From class
java.lang.Object
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From interface
org.springframework.beans.factory.BeanClassLoaderAware
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From interface
org.springframework.beans.factory.FactoryBean
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From interface
org.springframework.beans.factory.InitializingBean
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Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.
Return an instance (possibly shared or independent) of the object managed by this factory.
As with a BeanFactory
, this allows support for both the
Singleton and Prototype design pattern.
If this FactoryBean is not fully initialized yet at the time of
the call (for example because it is involved in a circular reference),
throw a corresponding FactoryBeanNotInitializedException
.
As of Spring 2.0, FactoryBeans are allowed to return null
objects. The factory will consider this as normal value to be used; it
will not throw a FactoryBeanNotInitializedException in this case anymore.
FactoryBean implementations are encouraged to throw
FactoryBeanNotInitializedException themselves now, as appropriate.
null
)Return the type of object that this FactoryBean creates,
or null
if not known in advance.
This allows one to check for specific types of beans without instantiating objects, for example on autowiring.
In the case of implementations that are creating a singleton object, this method should try to avoid singleton creation as far as possible; it should rather estimate the type in advance. For prototypes, returning a meaningful type here is advisable too.
This method can be called before this FactoryBean has been fully initialized. It must not rely on state created during initialization; of course, it can still use such state if available.
NOTE: Autowiring will simply ignore FactoryBeans that return
null
here. Therefore it is highly recommended to implement
this method properly, using the current state of the FactoryBean.
null
if not known at the time of the callIs the object managed by this factory a singleton? That is,
will getObject()
always return the same object
(a reference that can be cached)?
NOTE: If a FactoryBean indicates to hold a singleton object,
the object returned from getObject()
might get cached
by the owning BeanFactory. Hence, do not return true
unless the FactoryBean always exposes the same reference.
The singleton status of the FactoryBean itself will generally be provided by the owning BeanFactory; usually, it has to be defined as singleton there.
NOTE: This method returning false
does not
necessarily indicate that returned objects are independent instances.
An implementation of the extended SmartFactoryBean
interface
may explicitly indicate independent instances through its
isPrototype()
method. Plain FactoryBean
implementations which do not implement this extended interface are
simply assumed to always return independent instances if the
isSingleton()
implementation returns false
.
Specify the AdvisorAdapterRegistry to use. Default is the global AdvisorAdapterRegistry.
Callback that supplies the bean class loader
to
a bean instance.
Invoked after the population of normal bean properties but
before an initialization callback such as
InitializingBean's
afterPropertiesSet()
method or a custom init-method.
classLoader | the owning class loader; may be null in
which case a default ClassLoader must be used, for example
the ClassLoader obtained via
getDefaultClassLoader()
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Set additional interceptors (or advisors) to be applied after the implicit transaction interceptor.
You may specify any AOP Alliance MethodInterceptors or other Spring AOP Advices, as well as Spring AOP Advisors.
Set additional interceptors (or advisors) to be applied before the implicit transaction interceptor, e.g. a PerformanceMonitorInterceptor.
You may specify any AOP Alliance MethodInterceptors or other Spring AOP Advices, as well as Spring AOP Advisors.
Set the ClassLoader to generate the proxy class in.
Default is the bean ClassLoader, i.e. the ClassLoader used by the containing BeanFactory for loading all bean classes. This can be overridden here for specific proxies.
Specify the set of interfaces being proxied.
If not specified (the default), the AOP infrastructure works out which interfaces need proxying by analyzing the target, proxying all the interfaces that the target object implements.
Set the target object, that is, the bean to be wrapped with a transactional proxy.
The target may be any object, in which case a SingletonTargetSource will be created. If it is a TargetSource, no wrapper TargetSource is created: This enables the use of a pooling or prototype TargetSource etc.
Create the "main" interceptor for this proxy factory bean. Typically an Advisor, but can also be any type of Advice.
Pre-interceptors will be applied before, post-interceptors will be applied after this interceptor.
Determine a TargetSource for the given target (or TargetSource).
target | target. If this is an implementation of TargetSource it is used as our TargetSource; otherwise it is wrapped in a SingletonTargetSource. |
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