net.sf.tie.ext
Class CachingInjector

java.lang.Object
  net.sf.tie.ext.CachingInjector

All Implemented Interfaces:

InterceptionInjector

public class CachingInjector
extends Object
implements InterceptionInjector

An InterceptionInjector that delegates to another injector, and caches the result. The cache makes use of Reference objects to prevent the leaking of memory.

Constructor Summary

CachingInjector(InterceptionInjector parent)

Method Summary

void	clearCache()
boolean	isWrapped(Object value) Determines whether the supplied value is a wrapped value from this interceptor.
void	removeFromCache(Object endPoint)
<T> T	wrapObject(Class<T> type, T endPoint) Wraps the designated object endPoint in any preconfigured MethodInterceptors.

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingInjector

public CachingInjector(InterceptionInjector parent)

Method Detail

clearCache

public void clearCache()

removeFromCache

public void removeFromCache(Object endPoint)

wrapObject

public <T> T wrapObject(Class<T> type,
                        T endPoint)

Description copied from interface: InterceptionInjector

Wraps the designated object endPoint in any preconfigured MethodInterceptors. Returns an object O, such that if a method M is invoked on O, then the provided interceptors will be called, prior to an invocation of the original method M on endPoint. It is acceptable for implementations to return the endPoint directly if there is no interception to perform, or if the interception can be performed without constructing additional objects. However, it is typical for the return value to be a dynamically created proxy around endPoint.

Specified by:

wrapObject in interface InterceptionInjector

Parameters:

type - The java type (typically an interface) which the returned object should implement.

See Also:

ProxyInjector

isWrapped

public boolean isWrapped(Object value)

Description copied from interface: InterceptionInjector

Determines whether the supplied value is a wrapped value from this interceptor. NB: If value has been wrapped multiple times, then only the injector that performed the last wrapping is required to return true. It is acceptible for all other interceptors to return false.

Specified by:

isWrapped in interface InterceptionInjector