org.springframework.beans.factory.support

Class FactoryBeanRegistrySupport

java.lang.Object

org.springframework.core.SimpleAliasRegistry

org.springframework.beans.factory.support.DefaultSingletonBeanRegistry

org.springframework.beans.factory.support.FactoryBeanRegistrySupport

All Implemented Interfaces:

SingletonBeanRegistry, AliasRegistry

Direct Known Subclasses:

AbstractBeanFactory

public abstract class FactoryBeanRegistrySupport
extends DefaultSingletonBeanRegistry

Support base class for singleton registries which need to handle FactoryBean instances, integrated with DefaultSingletonBeanRegistry's singleton management.

Serves as base class for AbstractBeanFactory.

Since:

2.5.1

Author:

Juergen Hoeller

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Map<java.lang.String,java.lang.Object>	factoryBeanObjectCache Cache of singleton objects created by FactoryBeans: FactoryBean name --> object

Fields inherited from class org.springframework.beans.factory.support.DefaultSingletonBeanRegistry

logger, NULL_OBJECT

Constructor Summary

Constructors

Constructor and Description
FactoryBeanRegistrySupport()

Method Summary

Modifier and Type	Method and Description
private java.lang.Object	doGetObjectFromFactoryBean(FactoryBean<?> factory, java.lang.String beanName) Obtain an object to expose from the given FactoryBean.
protected java.security.AccessControlContext	getAccessControlContext() Returns the security context for this bean factory.
protected java.lang.Object	getCachedObjectForFactoryBean(java.lang.String beanName) Obtain an object to expose from the given FactoryBean, if available in cached form.
protected FactoryBean<?>	getFactoryBean(java.lang.String beanName, java.lang.Object beanInstance) Get a FactoryBean for the given bean if possible.
protected java.lang.Object	getObjectFromFactoryBean(FactoryBean<?> factory, java.lang.String beanName, boolean shouldPostProcess) Obtain an object to expose from the given FactoryBean.
protected java.lang.Class<?>	getTypeForFactoryBean(FactoryBean<?> factoryBean) Determine the type for the given FactoryBean.
protected java.lang.Object	postProcessObjectFromFactoryBean(java.lang.Object object, java.lang.String beanName) Post-process the given object that has been obtained from the FactoryBean.
protected void	removeSingleton(java.lang.String beanName) Overridden to clear the FactoryBean object cache as well.

Methods inherited from class org.springframework.beans.factory.support.DefaultSingletonBeanRegistry

addSingleton, addSingletonFactory, afterSingletonCreation, beforeSingletonCreation, containsSingleton, destroyBean, destroySingleton, destroySingletons, getDependenciesForBean, getDependentBeans, getSingleton, getSingleton, getSingleton, getSingletonCount, getSingletonMutex, getSingletonNames, hasDependentBean, isActuallyInCreation, isCurrentlyInCreation, isDependent, isSingletonCurrentlyInCreation, onSuppressedException, registerContainedBean, registerDependentBean, registerDisposableBean, registerSingleton, setCurrentlyInCreation

Methods inherited from class org.springframework.core.SimpleAliasRegistry

allowAliasOverriding, canonicalName, checkForAliasCircle, getAliases, isAlias, registerAlias, removeAlias, resolveAliases

Methods inherited from class java.lang.Object

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

Field Detail

factoryBeanObjectCache

private final java.util.Map<java.lang.String,java.lang.Object> factoryBeanObjectCache

Cache of singleton objects created by FactoryBeans: FactoryBean name --> object

Constructor Detail

FactoryBeanRegistrySupport

public FactoryBeanRegistrySupport()

Method Detail

getTypeForFactoryBean

protected java.lang.Class<?> getTypeForFactoryBean(FactoryBean<?> factoryBean)

Determine the type for the given FactoryBean.

Parameters:

factoryBean - the FactoryBean instance to check

Returns:

the FactoryBean's object type, or null if the type cannot be determined yet

getCachedObjectForFactoryBean

protected java.lang.Object getCachedObjectForFactoryBean(java.lang.String beanName)

Obtain an object to expose from the given FactoryBean, if available in cached form. Quick check for minimal synchronization.

Parameters:

beanName - the name of the bean

Returns:

the object obtained from the FactoryBean, or null if not available

getObjectFromFactoryBean

protected java.lang.Object getObjectFromFactoryBean(FactoryBean<?> factory,
                                                    java.lang.String beanName,
                                                    boolean shouldPostProcess)

Obtain an object to expose from the given FactoryBean.

Parameters:

factory - the FactoryBean instance

beanName - the name of the bean

shouldPostProcess - whether the bean is subject to post-processing

Returns:

the object obtained from the FactoryBean

Throws:

BeanCreationException - if FactoryBean object creation failed

See Also:

FactoryBean.getObject()

doGetObjectFromFactoryBean

private java.lang.Object doGetObjectFromFactoryBean(FactoryBean<?> factory,
                                                    java.lang.String beanName)
                                             throws BeanCreationException

Obtain an object to expose from the given FactoryBean.

Parameters:

factory - the FactoryBean instance

beanName - the name of the bean

Returns:

the object obtained from the FactoryBean

Throws:

BeanCreationException - if FactoryBean object creation failed

See Also:

FactoryBean.getObject()

postProcessObjectFromFactoryBean

protected java.lang.Object postProcessObjectFromFactoryBean(java.lang.Object object,
                                                            java.lang.String beanName)
                                                     throws BeansException

Post-process the given object that has been obtained from the FactoryBean. The resulting object will get exposed for bean references.

The default implementation simply returns the given object as-is. Subclasses may override this, for example, to apply post-processors.

Parameters:

object - the object obtained from the FactoryBean.

beanName - the name of the bean

Returns:

the object to expose

Throws:

BeansException - if any post-processing failed

getFactoryBean

protected FactoryBean<?> getFactoryBean(java.lang.String beanName,
                                        java.lang.Object beanInstance)
                                 throws BeansException

Get a FactoryBean for the given bean if possible.

Parameters:

beanName - the name of the bean

beanInstance - the corresponding bean instance

Returns:

the bean instance as FactoryBean

Throws:

BeansException - if the given bean cannot be exposed as a FactoryBean

removeSingleton

protected void removeSingleton(java.lang.String beanName)

Overridden to clear the FactoryBean object cache as well.

Overrides:

removeSingleton in class DefaultSingletonBeanRegistry

Parameters:

beanName - the name of the bean

See Also:

DefaultSingletonBeanRegistry.getSingletonMutex()

getAccessControlContext

protected java.security.AccessControlContext getAccessControlContext()

Returns the security context for this bean factory. If a security manager is set, interaction with the user code will be executed using the privileged of the security context returned by this method.

See Also:

AccessController.getContext()