org.springframework.aop.target.dynamic
Class BeanFactoryRefreshableTargetSource

java.lang.Object
  org.springframework.aop.target.dynamic.AbstractRefreshableTargetSource
      org.springframework.aop.target.dynamic.BeanFactoryRefreshableTargetSource

All Implemented Interfaces:

Refreshable, TargetClassAware, TargetSource

Direct Known Subclasses:

RefreshableScriptTargetSource

public class BeanFactoryRefreshableTargetSource
extends AbstractRefreshableTargetSource

Refreshable TargetSource that fetches fresh target beans from a BeanFactory.

Can be subclassed to override requiresRefresh() to suppress unnecessary refreshes. By default, a refresh will be performed every time the "refreshCheckDelay" has elapsed.

Since:

2.0

Author:

Rob Harrop, Rod Johnson, Juergen Hoeller, Mark Fisher

See Also:

BeanFactory, AbstractRefreshableTargetSource.requiresRefresh(), AbstractRefreshableTargetSource.setRefreshCheckDelay(long)

Field Summary

Fields inherited from class org.springframework.aop.target.dynamic.AbstractRefreshableTargetSource

logger, targetObject

Constructor Summary

BeanFactoryRefreshableTargetSource(BeanFactory beanFactory, String beanName)
Create a new BeanFactoryRefreshableTargetSource for the given bean factory and bean name.

Method Summary

protected Object	freshTarget() Retrieve a fresh target object.
protected Object	obtainFreshBean(BeanFactory beanFactory, String beanName) A template method that subclasses may override to provide a fresh target object for the given bean factory and bean name.

Methods inherited from class org.springframework.aop.target.dynamic.AbstractRefreshableTargetSource

getLastRefreshTime, getRefreshCount, getTarget, getTargetClass, isStatic, refresh, releaseTarget, requiresRefresh, setRefreshCheckDelay

Methods inherited from class java.lang.Object

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

Constructor Detail

BeanFactoryRefreshableTargetSource

public BeanFactoryRefreshableTargetSource(BeanFactory beanFactory,
                                          String beanName)

Create a new BeanFactoryRefreshableTargetSource for the given bean factory and bean name.

Note that the passed-in BeanFactory should have an appropriate bean definition set up for the given bean name.

Parameters:

beanFactory - the BeanFactory to fetch beans from

beanName - the name of the target bean

Method Detail

freshTarget

protected final Object freshTarget()

Retrieve a fresh target object.

Specified by:

freshTarget in class AbstractRefreshableTargetSource

Returns:

the fresh target object

obtainFreshBean

protected Object obtainFreshBean(BeanFactory beanFactory,
                                 String beanName)

A template method that subclasses may override to provide a fresh target object for the given bean factory and bean name.

This default implementation fetches a new target bean instance from the bean factory.

See Also:

BeanFactory.getBean(java.lang.String)