RE: OSCache, caching, Decorator pattern

Our DAO communicates with an ERP system using a homegrown XML protocol.

We are using OSCache to cache XML responses.

Cayenne / Hibernate / OJB / Torque are not useful in our 
situation.

-Sean


> -----Original Message-----
> From: Andrus Adamchik [mailto:[email protected]]
> Sent: Thursday, January 08, 2004 1:17 PM
> To: Sullivan, Sean C - MWT
> Cc: [email protected]
> Subject: Re: [Opensymphony-oscache] OSCache, caching, Decorator
pattern
> 
> 
> On Dec 29, 2003, at 6:50 PM, Sullivan, Sean C - MWT wrote:
> 
> > My company is using the DAO pattern for data access operations.
> >
> > I am looking for articles or books that describe if/how to apply
> > the Decorator pattern for the purposes of caching.
> >
> > Thanks in advance.
> 
> Hi Sullivan,
> 
> I know that a choice of DAO over other persistent technologies may not
> be yours, and you and your company may have lots of reasons to stay
> with DAO. But it seems to me that by attempting to add things like
> caching to your framework you are basically building your own Object
> Relational Mapping (ORM) implementation. Writing a full-featured ORM
> from scratch and optimizing it for performance (esp. with a
distributed
> cache) is far from a trivial task. Adding decorators doesn't make
> things easier either....
> 
> Why not use an existing mature ORM framework instead? I can recommend
> Cayenne for an ORM (being one of its creators):
> 
> http://objectstyle.org/cayenne/
> 
> But there are many other choices as well.
> 
> ------------------------------
> Andrus Adamchik
> Cayenne Object-Relational Framework
> http://objectstyle.org/cayenne/



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