org.springframework.aop.target
Class HotSwappableTargetSource

public class HotSwappableTargetSource

implements TargetSource

Implementation of TargetSource interface that caches a local target object, but allows the target to be swapped while the application is running. If configuring an object of this class in a Spring IoC container, use Type 3 (constructor-style) IoC.

Author:

Rod Johnson

Version: $Id: HotSwappableTargetSource.java,v 1.4 2003/12/30 01:07:12 jhoeller Exp $

public HotSwappableTargetSource(Object initialTarget)

Create a new HotSwappableTargetSource with the initial target

Parameters:

initialTarget - initial target

public boolean equals(Object other)

Two invoker interceptors are equal if they have the same target or if the targets are equal.

public final synchronized Object getTarget()

Synchronization around something that takes so little time is fine

See Also:

org.springframework.aop.TargetSource.getTarget()

public Class getTargetClass()

public final boolean isStatic()

See Also:

org.springframework.aop.TargetSource.isStatic()

public void releaseTarget(Object o)

See Also:

org.springframework.aop.TargetSource.releaseTarget(java.lang.Object)

public synchronized Object swap(Object newTarget)
                          throws org.springframework.aop.framework.AopConfigException

Swap the target, returning the old target

Parameters:

newTarget - new target

Returns: the old target

Throws:

AopConfigException - if the new target is invalid