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Struts & Hibernate
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| | | Cache | Cache 2005-06-23 - By Dan Marchant
Back
I would also be a bit leary on using Soft Reference a whole lot in
high transactional systems. I have seen some bizarre garbage
collection behavior when using soft references in some jvms.
I agree with Jay use an existing one:
- OsCache
- EHCache - http://ehcache.sourceforge.net/
- SwarmCache - http://swarmcache.sourceforge.net/
Another thing you might want to play around with is ActiveSpaces -
http://activespace.codehaus.org/
Looks quite interesting.
- Dan
On 6/23/05, Baker, Jay <JBaker@(protected)> wrote:
>
> My suggestion would be to use an existing cache implementation rather than
> write your own (unless there are unusual reasons to do so). If you are
> worrying about weak and soft references, caching policies and the like, you
> can take advantage of the work that others have already done. If you don't
> need all that, you can stick with a more simple implementation.
>
> There are non-commercial caching solutions that would likely fit your needs.
> I use Open Symphony's OSCache quite a bit.
>
>
> -- --Original Message-- --
> From: Rumpa Giri [mailto:girirx@(protected)]
> Sent: Thursday, June 23, 2005 12:32 PM
> To: J2EEPATTERNS-INTEREST@(protected)
> Subject: Re: Cache
>
>
> I think I am going to go the memory route. I was reading the softreference
> API, I wanted to know if there area any good links/reading material besides
> the API description. I would like to create the cache using the
> SoftReference API.
>
> Thanks
> Rgiri.
>
> Chester Chen <chesterxgchen@(protected)> wrote:
> If the number of records is not large, retrieve all
> the reads into memory and cache it is the way to go.
> how does you select it is not important. The important
> is only cache the info you need.
>
> If the records is large, then read everything into
> memory will become impractical, as it consume too much
> memory.
>
> Chester
>
> --- Rumpa Giri wrote:
>
> > Hello,
> >
> > I would like to know what will be a good way to
> > implement the following:
> >
> > We have many read only tables in the database. I was
> > thinking rather than doing a select all from the
> > table all the time, we would like to keep the
> > collection of objects in memory to reduce the
> > database traffic. The SQLs for this is pretty much
> > SELECT * FROM TABLENAME. No filtering is present.
> > And this collection of objects is referenced too
> > many times.
> >
> > Any related articles, pointer will help us.
> >
> > Thanks,
> > Rgiri.
> >
> >
> > -- ---- ---- ---- ---- ---- -----
> > Yahoo! Mail Mobile
> > Take Yahoo! Mail with you! Check email on your
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> >
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