[Building Sakai] cache automatically updates itself?

[Steve Swinsburg]

They are hibernate objects for persistence, but I am putting them into a
MemoryService cache.

cheers.

On Sat, May 29, 2010 at 6:02 PM, Aaron Zeckoski <azeckoski at unicon.net>wrote:

> Are these hibernate objects and are you talking about the hibernate
> cache or is this simply an object you are placing into the in-memory
> cache in the memory service?
>
> -AZ
>
>
> On Sat, May 29, 2010 at 12:13 AM, Steve Swinsburg
> <steve.swinsburg at gmail.com> wrote:
> > Hi all,
> >
> > I have a cache in my app that caches objects loaded from the database so
> that subsequent requests use the cached version and don't hit the database
> again.
> >
> > On one of my pages I allow a user to update their own version of the
> object and it is saved to the database. What I am seeing however, is that
> this change is also reflected in the cached version, ie they are kept in
> sync. Is this normal behaviour? I haven't specifically coded for updates to
> be readded to the cache, I was just testing and noticed this was happening
> anyway.  I am not sure if it's expected behaviour so will explicitly update
> the cache with the updated verison when it's saved.
> >
> > Some pseudocode of what I have at the moment:
> >
> > getRecord(userId) {
> >
> >   check cache
> >   if exists in cache, returned cached version
> >
> >   if not get from db and add to cache for future lookups
> > }
> >
> > updateRecord(object) {
> >   save object to db
> > }
> >
> > So no explicit cache update in the updateRecord method, but it's
> happening anyway.
> >
> > Any input on the Cache/MemoryService appreciated.
> >
> > cheers,
> > Steve
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>
>
> --
> Aaron Zeckoski - Software Engineer - http://tinyurl.com/azprofile
>
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