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From James Carman <>
Subject Re: [pool] Interceptors
Date Sun, 09 Aug 2015 00:04:40 GMT
We talked about this a while back with respect to logging,, having a
PoolListener interface or something.

On Sat, Aug 8, 2015 at 7:36 PM Phil Steitz <> wrote:

> Tomcat's jdbc-pool has an interceptor feature that allows custom
> code to be inserted into methods called on connections managed by
> the pool.  In [pool], we have the core infrastructure to support
> this in a generic way via the ProxiedObjectPool.  I propose that we
> extend this to allow users to configure interceptors to be called
> when registered methods are invoked on checked out objects.  I
> haven't really thought through how configuration would work, but
> basically clients would register methods and possibly interceptor
> properties and the interceptors would get references to the method,
> arguments, pool and pooled object.  Configuring interceptors in a
> GOP or GKOP would cause it to be wrapped in a ProxiedObjectPool.
> Eventually, we could use this [pool] capability to enable the kind
> of thing that jdbc-pool provides with its interceptors in DBCP.
> With [pool] itself, I could see providing method stats collectors,
> abandoned timer reset (avoiding having to implement use()) and maybe
> a pooled object properties cache.   If there are no objections, I
> will open a JIRA and start experimenting.
> Phil
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