Re: [infinispan-dev] ISPN-78 and Large Object Support/Streaming API

On 20 May 2010, at 16:14, Galder Zamarreno wrote: > The following ties in a bit with my comment yesterday about return values: > > If these two methods would always return null, you'd never be able to find out whether a remove/replace worked on its own. Returning previous value would indeed not work, but you could still return a marker different to null. The problem with markers is typing. Returning a boolean, for example, would make a lot of sense. But returning anything else would in effect be used *as a boolean*. Using any other return type for this would be abuse of the type system.

> > V remove(K key); // except that this will always return a null > V replace(K key, V value); // except that this will always return a null > > So, if remove worked cos the key was present, a marker value would be returned, otherwise if the key was not present, null would be returned. > > Cheers, > > ----- "Manik Surtani" <manik(a)jboss.org&gt; wrote: > >> I have put together a brief design for ISPN-78. Please take a look, >> it is on the wiki: >> >> https://community.jboss.org/wiki/LargeObjectSupport >> >> I have also deferred ISPN-78 to 5.0.0 rather than 4.1.0 as I'd rather >> not hold up 4.1.0 for new features at this stage. >> >> Please have a look at the designs and let me know what you think - or >> comment on the wiki page. >> >> Cheers >> Manik >> -- >> Manik Surtani >> manik(a)jboss.org >> Lead, Infinispan >> Lead, JBoss Cache >> http://www.infinispan.org >> http://www.jbosscache.org >> >> >> >> >> >> _______________________________________________ >> infinispan-dev mailing list >> infinispan-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/infinispan-dev > _______________________________________________ > infinispan-dev mailing list > infinispan-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/infinispan-dev -- Manik Surtani manik(a)jboss.org Lead, Infinispan Lead, JBoss Cache http://www.infinispan.org http://www.jbosscache.org _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev