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AbstractPrototypeBasedTargetSource (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.aop.target
Class AbstractPrototypeBasedTargetSource

java.lang.Object
  org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource
      org.springframework.aop.target.AbstractPrototypeBasedTargetSource

All Implemented Interfaces:

Serializable, TargetClassAware, TargetSource, BeanFactoryAware

Direct Known Subclasses:

AbstractPoolingTargetSource, PrototypeTargetSource, ThreadLocalTargetSource

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public abstract class AbstractPrototypeBasedTargetSource
extends AbstractBeanFactoryBasedTargetSource

Base class for dynamic TargetSources that can create new prototype bean instances to support a pooling or new-instance-per-invocation strategy.

Such TargetSources must run in a BeanFactory, as it needs to call the getBean method to create a new prototype instance. Therefore, this base class extends AbstractBeanFactoryBasedTargetSource.

Author:

Rod Johnson, Juergen Hoeller

See Also:

BeanFactory.getBean(java.lang.String), PrototypeTargetSource, ThreadLocalTargetSource, CommonsPoolTargetSource, Serialized Form

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Field Summary

 

Fields inherited from class org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource
logger

 

Constructor Summary
AbstractPrototypeBasedTargetSource()

 

Method Summary
protected  void	destroyPrototypeInstance(Object target)           Subclasses should call this method to destroy an obsolote prototype instance.
protected  Object	newPrototypeInstance()           Subclasses should call this method to create a new prototype instance.
void	setBeanFactory(BeanFactory beanFactory)           Set the owning BeanFactory.

 

Methods inherited from class org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource
copyFrom, equals, getBeanFactory, getTargetBeanName, getTargetClass, hashCode, isStatic, releaseTarget, setTargetBeanName, setTargetClass, toString, writeReplace

 

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Methods inherited from interface org.springframework.aop.TargetSource
getTarget

 

Constructor Detail

AbstractPrototypeBasedTargetSource

public AbstractPrototypeBasedTargetSource()

Method Detail

setBeanFactory

public void setBeanFactory(BeanFactory beanFactory)
                    throws BeansException

Description copied from class: AbstractBeanFactoryBasedTargetSource

Set the owning BeanFactory. We need to save a reference so that we can use the getBean method on every invocation.

Specified by:

setBeanFactory in interface BeanFactoryAware

Overrides:

setBeanFactory in class AbstractBeanFactoryBasedTargetSource

Parameters:

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

Throws:

BeansException - in case of initialization errors

See Also:

BeanInitializationException

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newPrototypeInstance

protected Object newPrototypeInstance()
                               throws BeansException

Subclasses should call this method to create a new prototype instance.

Throws:

BeansException - if bean creation failed

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destroyPrototypeInstance

protected void destroyPrototypeInstance(Object target)

Subclasses should call this method to destroy an obsolote prototype instance.

Parameters:

target - the bean instance to destroy

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