[jboss-jira] [JBoss JIRA] Updated: (JBCACHE-893) Create a pluggable PojoCache Collection class implementation

[Jason T. Greene (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBCACHE-893?page=all ]

Jason T. Greene updated JBCACHE-893:
------------------------------------

    Assignee: Jason T. Greene  (was: Ben Wang)

> Create a pluggable PojoCache Collection class implementation
> ------------------------------------------------------------
>
>                 Key: JBCACHE-893
>                 URL: http://jira.jboss.com/jira/browse/JBCACHE-893
>             Project: JBoss Cache
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: PojoCache
>            Reporter: Ben Wang
>         Assigned To: Jason T. Greene
>             Fix For: PojoCache
>
>   Original Estimate: 1 week
>  Remaining Estimate: 1 week
>
> Currently PojoCache only supports a single flavor of Collection classes, e.g., HashMap, HashSet, and ArrayList. To fully support different flavor of Collection implementation, we can either:
> 1. Enable array interception from Jboss Aop such that we can instrument all Collection implementation classes (including java.util.*). But JBoss Aop currently doesn't support it yet, and issues of instrumenting the Sun system classes also is problematic.
> 2. Create a pluggable architecture for different flavor of Collection implementation.
> I think Option #2 is more realistic now. What I propose is this:
> 1. Will need to implement a specific flavor of collection interceptor and cache impl. E.g., in the case of List, it will be CachedListInterceptor and CachedListImpl.
> 2. Register the specific impl and the corresponding Collection class name to a registry
> During runtime, when we encounter Collection classes, we will check the registry first to see which interceptor (and the corresponding cache impl) that we will use for this case.
> Performance impact should be minimal since this is needed only for attach phase.

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