>-----Original Message----- >From: Igor Stolyarov [mailto:[EMAIL PROTECTED] >Sent: Friday, July 28, 2006 1:04 PM >To: harmony-dev@incubator.apache.org >Subject: Re: AWT 2D PERFORMANCE ISSUE > >I think using WeakReference and ReferenceQueue can't help because according >to RI I have to give customer array
You give the customer that array, and store a Weak- or PhantomReference in your object. When you need to update some data, you can check if the array you gave is still "alive" or not. I dealt with this kind of problem in javax.swing.text.GapContent. Its createPosition() method should return an object to client. This object returned must be updated when data (text) stored in GapContent is modified. To reduce the number of Position objects to be updated, I used PhantomReferences to be notified that the object I returned to client was cleared by garbage collector. Has anyone else dealt with reference APIs and similar problems? Regards, Alexey. > >On 7/28/06, Ivanov, Alexey A <[EMAIL PROTECTED]> wrote: >> >> >-----Original Message----- >> >From: Igor Stolyarov [mailto:[EMAIL PROTECTED] >> >Sent: Friday, July 28, 2006 9:25 AM >> >To: harmony-dev@incubator.apache.org >> >Subject: Re: AWT 2D PERFORMANCE ISSUE >> > >> >I'm sorry. May be I don't clear explained my question. Main target of >> my >> >question was discussion of synchronization of two arrays one of these >> is >> >java array, second is native array. Main issue of this synchronization >> is >> >the fact that customer can recieve reference to the java array and we >> don't >> >know when customer will release the array. >> >> What about using Weak- or PhantomReferences and ReferenceQueue? They may >> solve your problem. >> >> Regards, >> -- >> Alexey A. Ivanov >> Intel Middleware Product Division >> >> <SNIP> >> >> --------------------------------------------------------------------- >> Terms of use : http://incubator.apache.org/harmony/mailing.html >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > >-- >Igor V. Stolyarov >Intel Middleware Products Division -- Alexey A. Ivanov Intel Middleware Product Division --------------------------------------------------------------------- Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
