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

On 25 May 2010, at 07:30, Galder Zamarreno wrote: > > ----- "Manik Surtani" <manik(a)jboss.org&gt; wrote: > >> 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. > > +1, a boolean would be enough. Right, but that in turn breaks the method signature of remove() and replace(), which return V. Hence my opting to return null and documenting as such.

> >> >> >>> >>> 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 > _______________________________________________ > 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