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https://issues.apache.org/jira/browse/PROXY-10?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13459185#comment-13459185
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Matt Benson commented on PROXY-10:
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In the 2.0 branch {{ProxyFactory}} is in fact an interface.
> Introducing interfaces for ProxyFactory
> ---------------------------------------
>
> Key: PROXY-10
> URL: https://issues.apache.org/jira/browse/PROXY-10
> Project: Commons Proxy
> Issue Type: Improvement
> Affects Versions: 1.0
> Reporter: Brennan Spies
> Priority: Minor
>
> As per my conversation with James Carman, I am creating an enhancement
> request for Apache Commons Proxy (any version).
> I think that forcing all proxy factories to extend a concrete implementation,
> ProxyFactory, is not an optimal design choice. The obvious disadvantages are
> that all subclasses would inherit shared state, as well as potentially
> undesired behavior. Extending a concrete class also makes it much easier to
> break subclasses if ProxyFactory code changes.
> Given that the public API of this class could change, I am proposing that 3
> new interfaces be introduced: DelegatorProxyFactory, InterceptorProxyFactory,
> and InvokerProxyFactory. This would give flexibility to add new interfaces to
> the library (to define new proxy types) without necessarily having to change
> existing interfaces and break potential implementations in "the wild".
> Existing implementations would, of course, implement all three interfaces.
> public interface DelegatorProxyFactory {
> public Object createDelegatorProxy(ObjectProvider delegateProvider,
> Class[] proxyClasses) ;
> public Object createDelegatorProxy(ClassLoader classLoader,
> ObjectProvider delegateProvider, Class[] proxyClasses) ;
> }
> public interface InterceptorProxyFactory {
> public Object createInterceptorProxy(Object target, Interceptor
> interceptor, Class[] proxyClasses);
> public Object createInterceptorProxy(ClassLoader classLoader, Object
> target, Interceptor interceptor, Class[] proxyClasses) ;
> }
> public interface InvokerProxyFactory {
> public Object createInvokerProxy(ClassLoader classLoader, Invoker
> invoker, Class[] proxyClasses) ;
> public Object createInvokerProxy(Invoker invoker, Class[] proxyClasses) ;
> }
> Depending on the timing of the move to Java 5 (version 2.0?), a type-safe
> genericized method could be introduced with a non-array Class parameter.
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