Hi Armin,
Thank you very much for your reply.
I forgot to ask you one thing: can I set the ObjectCacheDefaultImpl
timeout to infinite (object cache never timeouts)? For example, timeout
= -1?
Thanks,
Jair Jr
> Hi,
>
> Jair da Silva Ferreira Júnior wrote:
>
> > Hi,
> > I am using ojb1.0_rc5, ODMG api with OJB queries, mysql4 (innodb
tables)
> > in Linux Red Hat 7.3 (kernel 2.4.20-20.7).
> > I am using ObjectCacheDefaultImpl in my application as it's
> > read-intensive.
> > I have some questions about the behavior of the timeout attribute in
> > ObjectCacheDefaultImpl.
> > 1- Is the timeout attribute new in rc5? In other words, did the
> > timeout attribute exist in rc4?
>
> it's new to rc5
>
> > 2- If I configure the cache using the OJB.properties file like
this:
> >
> > ObjectCacheClass=org.apache.ojb.broker.cache.ObjectCacheDefaultImpl
> > descriptorBasedCaches=false
> > Is the timeout attribute set to 900 (default)?
>
> yes, default timeout is 900 sec
>
> > Is there a way I can set this attribute in the
OJB.properties
> > file
>
> no (think in 1.1 Version we will remove cache configuration from
> OJB.properties file)
>
> or is it only set through the <object-cache> tag in the repository?
>
> yep, within jdbc-connection-descriptor or class-descriptor
>
> > 3- Is the time counter of a cached object reset when it is
updated
> > (the object's data is changed and commited to the database)?
>
> yes
>
> > 4- If a cached object timeouts and it is still being referenced
by
> > other objects in my application (it is not elegible for garbage
collection),
> > will it be returned from cache or will the object's data be reloaded
from db
> > in the same JVM object or will a new JVM object be created to hold the
> > reloaded data?
>
> timeout has highest priority, thus it will be removed from cache whether
> or not it's being referenced by other objects and be reloaded from DB
>
> regards,
> Armin
>
> >
> > Thanks,
> > Jair Jr
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
> >
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
