org.springframework.messaging.core

Class CachingDestinationResolverProxy<D>

java.lang.Object

org.springframework.messaging.core.CachingDestinationResolverProxy<D>

All Implemented Interfaces:

InitializingBean, DestinationResolver<D>

public class CachingDestinationResolverProxy<D>
extends Object
implements DestinationResolver<D>, InitializingBean

DestinationResolver implementation that proxies a target DestinationResolver, caching its resolveDestination(java.lang.String) results. Such caching is particularly useful if the destination resolving process is expensive (e.g. the destination has to be resolved through an external system) and the resolution results are stable anyway.

Since:

4.1

Author:

Agim Emruli, Juergen Hoeller

See Also:

DestinationResolver.resolveDestination(java.lang.String)

Constructor Summary

Constructors

Constructor and Description
CachingDestinationResolverProxy() Create a new CachingDestinationResolverProxy, setting the target DestinationResolver through the setTargetDestinationResolver(org.springframework.messaging.core.DestinationResolver<D>) bean property.
CachingDestinationResolverProxy(DestinationResolver<D> targetDestinationResolver) Create a new CachingDestinationResolverProxy using the given target DestinationResolver to actually resolve destinations.

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet() Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
D	resolveDestination(String name) Resolves and caches destinations if successfully resolved by the target DestinationResolver implementation.
void	setTargetDestinationResolver(DestinationResolver<D> targetDestinationResolver) Set the target DestinationResolver to delegate to.

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingDestinationResolverProxy

public CachingDestinationResolverProxy()

Create a new CachingDestinationResolverProxy, setting the target DestinationResolver through the setTargetDestinationResolver(org.springframework.messaging.core.DestinationResolver<D>) bean property.

CachingDestinationResolverProxy

public CachingDestinationResolverProxy(DestinationResolver<D> targetDestinationResolver)

Create a new CachingDestinationResolverProxy using the given target DestinationResolver to actually resolve destinations.

Parameters:

targetDestinationResolver - the target DestinationResolver to delegate to

Method Detail

setTargetDestinationResolver

public void setTargetDestinationResolver(DestinationResolver<D> targetDestinationResolver)

Set the target DestinationResolver to delegate to.

afterPropertiesSet

public void afterPropertiesSet()

Description copied from interface: InitializingBean

Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).

This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.

Specified by:

afterPropertiesSet in interface InitializingBean

resolveDestination

public D resolveDestination(String name)
                     throws DestinationResolutionException

Resolves and caches destinations if successfully resolved by the target DestinationResolver implementation.

Specified by:

resolveDestination in interface DestinationResolver<D>

Parameters:

name - the destination name to be resolved

Returns:

the currently resolved destination or an already cached destination

Throws:

DestinationResolutionException - if the target DestinationResolver reports an error during destination resolution