public abstract class InstantiationAwareBeanPostProcessorAdapter extends Object implements SmartInstantiationAwareBeanPostProcessor
SmartInstantiationAwareBeanPostProcessor
as no-ops, which will not change normal processing of each bean instantiated
by the container. Subclasses may override merely those methods that they are
actually interested in.
Note that this base class is only recommendable if you actually require
InstantiationAwareBeanPostProcessor
functionality. If all you need
is plain BeanPostProcessor
functionality, prefer a straight
implementation of that (simpler) interface.
Constructor and Description |
---|
InstantiationAwareBeanPostProcessorAdapter() |
Modifier and Type | Method and Description |
---|---|
Constructor<?>[] |
determineCandidateConstructors(Class<?> beanClass,
String beanName)
Determine the candidate constructors to use for the given bean.
|
Object |
getEarlyBeanReference(Object bean,
String beanName)
Obtain a reference for early access to the specified bean,
typically for the purpose of resolving a circular reference.
|
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). |
boolean |
postProcessAfterInstantiation(Object bean,
String beanName)
Perform operations after the bean has been instantiated, via a constructor or factory method,
but before Spring property population (from explicit properties or autowiring) occurs.
|
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). |
Object |
postProcessBeforeInstantiation(Class<?> beanClass,
String beanName)
Apply this BeanPostProcessor before the target bean gets instantiated.
|
PropertyValues |
postProcessPropertyValues(PropertyValues pvs,
PropertyDescriptor[] pds,
Object bean,
String beanName)
Post-process the given property values before the factory applies them
to the given bean.
|
Class<?> |
predictBeanType(Class<?> beanClass,
String beanName)
Predict the type of the bean to be eventually returned from this
processor's
InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation(java.lang.Class<?>, java.lang.String) callback. |
public InstantiationAwareBeanPostProcessorAdapter()
public Class<?> predictBeanType(Class<?> beanClass, String beanName)
SmartInstantiationAwareBeanPostProcessor
InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation(java.lang.Class<?>, java.lang.String)
callback.predictBeanType
in interface SmartInstantiationAwareBeanPostProcessor
beanClass
- the raw class of the beanbeanName
- the name of the beannull
if not predictablepublic Constructor<?>[] determineCandidateConstructors(Class<?> beanClass, String beanName) throws BeansException
SmartInstantiationAwareBeanPostProcessor
determineCandidateConstructors
in interface SmartInstantiationAwareBeanPostProcessor
beanClass
- the raw class of the bean (never null
)beanName
- the name of the beannull
if none specifiedBeansException
- in case of errorspublic Object getEarlyBeanReference(Object bean, String beanName) throws BeansException
SmartInstantiationAwareBeanPostProcessor
This callback gives post-processors a chance to expose a wrapper
early - that is, before the target bean instance is fully initialized.
The exposed object should be equivalent to the what
BeanPostProcessor.postProcessBeforeInitialization(java.lang.Object, java.lang.String)
/ BeanPostProcessor.postProcessAfterInitialization(java.lang.Object, java.lang.String)
would expose otherwise. Note that the object returned by this method will
be used as bean reference unless the post-processor returns a different
wrapper from said post-process callbacks. In other words: Those post-process
callbacks may either eventually expose the same reference or alternatively
return the raw bean instance from those subsequent callbacks (if the wrapper
for the affected bean has been built for a call to this method already,
it will be exposes as final bean reference by default).
getEarlyBeanReference
in interface SmartInstantiationAwareBeanPostProcessor
bean
- the raw bean instancebeanName
- the name of the beanBeansException
- in case of errorspublic Object postProcessBeforeInstantiation(Class<?> beanClass, String beanName) throws BeansException
InstantiationAwareBeanPostProcessor
If a non-null object is returned by this method, the bean creation process
will be short-circuited. The only further processing applied is the
BeanPostProcessor.postProcessAfterInitialization(java.lang.Object, java.lang.String)
callback from the configured
BeanPostProcessors
.
This callback will only be applied to bean definitions with a bean class. In particular, it will not be applied to beans with a "factory-method".
Post-processors may implement the extended
SmartInstantiationAwareBeanPostProcessor
interface in order
to predict the type of the bean object that they are going to return here.
postProcessBeforeInstantiation
in interface InstantiationAwareBeanPostProcessor
beanClass
- the class of the bean to be instantiatedbeanName
- the name of the beannull
to proceed with default instantiationBeansException
- in case of errorsAbstractBeanDefinition.hasBeanClass()
,
AbstractBeanDefinition.getFactoryMethodName()
public boolean postProcessAfterInstantiation(Object bean, String beanName) throws BeansException
InstantiationAwareBeanPostProcessor
This is the ideal callback for performing field injection on the given bean instance.
See Spring's own AutowiredAnnotationBeanPostProcessor
for a typical example.
postProcessAfterInstantiation
in interface InstantiationAwareBeanPostProcessor
bean
- the bean instance created, with properties not having been set yetbeanName
- the name of the beantrue
if properties should be set on the bean; false
if property population should be skipped. Normal implementations should return true
.
Returning false
will also prevent any subsequent InstantiationAwareBeanPostProcessor
instances being invoked on this bean instance.BeansException
- in case of errorspublic PropertyValues postProcessPropertyValues(PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException
InstantiationAwareBeanPostProcessor
Also allows for replacing the property values to apply, typically through creating a new MutablePropertyValues instance based on the original PropertyValues, adding or removing specific values.
postProcessPropertyValues
in interface InstantiationAwareBeanPostProcessor
pvs
- the property values that the factory is about to apply (never null
)pds
- the relevant property descriptors for the target bean (with ignored
dependency types - which the factory handles specifically - already filtered out)bean
- the bean instance created, but whose properties have not yet been setbeanName
- the name of the beannull
to skip property populationBeansException
- in case of errorsMutablePropertyValues
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 beannull
, no subsequent BeanPostProcessors will be invokedBeansException
- 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 beannull
, no subsequent BeanPostProcessors will be invokedBeansException
- in case of errorsInitializingBean.afterPropertiesSet()
,
FactoryBean