de.mindmatters.faces.spring.factory
Class VariableResolverProcessor

java.lang.Object
  de.mindmatters.faces.spring.factory.VariableResolverProcessor

All Implemented Interfaces:

BeanFactoryAware, BeanPostProcessor, InstantiationAwareBeanPostProcessor

public final class VariableResolverProcessor
extends java.lang.Object
implements BeanFactoryAware, InstantiationAwareBeanPostProcessor

InstantiationAwareBeanPostProcessor that instantiates all mananged beans with the original VariableResolver of the underlying JSF implementation.

Usually Spring is used for bean creation - so if you want the original VariableResolver to create your managed beans put this processor into your ApplicationContext.

Note: The bean creation process will be short-circuited. E.g. no BeanPostProcessors will be applied but beans will be initialized via AutowireCapableBeanFactory.initializeBean(Object, String).

Author:

Andreas Kuhrwahl

Constructor Summary

VariableResolverProcessor()

Method Summary

java.lang.Object	postProcessAfterInitialization(java.lang.Object bean, java.lang.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(java.lang.Object bean, java.lang.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.
java.lang.Object	postProcessBeforeInitialization(java.lang.Object bean, java.lang.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).
java.lang.Object	postProcessBeforeInstantiation(java.lang.Class beanClass, java.lang.String beanName) Apply this BeanPostProcessor before the target bean gets instantiated.
PropertyValues	postProcessPropertyValues(PropertyValues pvs, java.beans.PropertyDescriptor[] pds, java.lang.Object bean, java.lang.String beanName) Post-process the given property values before the factory applies them to the given bean.
void	setBeanFactory(BeanFactory beanFactory) Callback that supplies the owning factory to a bean instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

VariableResolverProcessor

public VariableResolverProcessor()

Method Detail

setBeanFactory

public void setBeanFactory(BeanFactory beanFactory)

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

Parameters:

beanFactory - owning BeanFactory (may not be null). The bean can immediately call methods on the factory.

See Also:

BeanInitializationException

postProcessAfterInitialization

public java.lang.Object postProcessAfterInitialization(java.lang.Object bean,
                                                       java.lang.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). 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.

Specified by:

postProcessAfterInitialization in interface BeanPostProcessor

Parameters:

bean - the new bean instance

beanName - the name of the bean

Returns:

the bean instance to use, either the original or a wrapped one

See Also:

InitializingBean.afterPropertiesSet(), FactoryBean

postProcessBeforeInitialization

public java.lang.Object postProcessBeforeInitialization(java.lang.Object bean,
                                                        java.lang.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). The bean will already be populated with property values. The returned bean instance may be a wrapper around the original.

Specified by:

postProcessBeforeInitialization in interface BeanPostProcessor

Parameters:

bean - the new bean instance

beanName - the name of the bean

Returns:

the bean instance to use, either the original or a wrapped one

See Also:

InitializingBean.afterPropertiesSet()

postProcessAfterInstantiation

public boolean postProcessAfterInstantiation(java.lang.Object bean,
                                             java.lang.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.

Specified by:

postProcessAfterInstantiation in interface InstantiationAwareBeanPostProcessor

Parameters:

bean - the bean instance created, but whose properties have not yet been set

beanName - the name of the bean

Returns:

true 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.

postProcessPropertyValues

public PropertyValues postProcessPropertyValues(PropertyValues pvs,
                                                java.beans.PropertyDescriptor[] pds,
                                                java.lang.Object bean,
                                                java.lang.String beanName)

Post-process the given property values before the factory applies them to the given bean. Allows for checking whether all dependencies have been satisfied, for example based on a "Required" annotation on bean property setters.

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.

Specified by:

postProcessPropertyValues in interface InstantiationAwareBeanPostProcessor

Parameters:

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 set

beanName - the name of the bean

Returns:

the actual property values to apply to to the given bean (can be the passed-in PropertyValues instance), or null to skip property population

See Also:

MutablePropertyValues

postProcessBeforeInstantiation

public java.lang.Object postProcessBeforeInstantiation(java.lang.Class beanClass,
                                                       java.lang.String beanName)

Apply this BeanPostProcessor before the target bean gets instantiated. The returned bean object may be a proxy to use instead of the target bean, effectively suppressing default instantiation of the target bean.

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".

Specified by:

postProcessBeforeInstantiation in interface InstantiationAwareBeanPostProcessor

Parameters:

beanClass - the class of the bean to be instantiated

beanName - the name of the bean

Returns:

the bean object to expose instead of a default instance of the target bean, or null to proceed with default instantiation

See Also:

AbstractBeanDefinition.hasBeanClass(), AbstractBeanDefinition.getFactoryMethodName()