what is decision about constrains/modifiers on prototypes ? I have found easy way how to disable constrains checks, but to turn off all modifiers(concern, side effect…) seems harder task.
nice to have for prototypes: often I have to keep value builder reference in UI code for later newInstance() call. And if VC are nested, I need to keep all builders around. Any solution for this? Wasn't there ValueComposite.build() method in old version ? On Jun 25, 2012, at 11:30 AM, Niclas Hedhman wrote: > Right, I was more thinking of disallowing java.util.Date/Calendar and > FORCE people to either JodaTime or JSR-310. > > On Mon, Jun 25, 2012 at 4:50 PM, Kent Sølvsten <[email protected]> wrote: >> I dont think we have to completely disallow Date's. That would probably >> require usage of som Qi4jDate instead - and creating a great Date API is >> beyond scope of Qi4J i think. >> >> What about this: >> >> On vb.prototype().att1().set(new Date()) we either store and immutable copy >> of the date (or just the millisecond value). value.att1().get() return an >> immutable date >> >> ? >> >> And then we simply allow a value to contain types, that are known to be >> immutable, or known types which we can handle more or less this way. >> >> >> /Kent >> >> Den 25/06/2012 kl. 10.29 skrev Niclas Hedhman: >> >>> On Mon, Jun 25, 2012 at 3:50 PM, Kent Sølvsten <[email protected]> wrote: >>>> So you are basically saying that >>>> >>>> 1) The prototype for a value is mutable. >>>> 2) You can assign 'primitive' values or ValueComposite's to its attributes >>>> 3) A prototype cannot be assigned to an attribute of another prototype >>> >>> Correct >>> >>> 4) Special handling for List, Map and possibly other Collections. >>> 5) Special handling for Date and Calendar (they are mutable, and >>> should probably be disallowed completely!!!) >>> >>>> Not sure if it worth the effort to ensure mutability inside all types of >>>> weird values in general. >>> >>> Good point. It is somewhere between hard to impossible to figure out... >>> >>> Cheers >>> -- >>> Niclas Hedhman, Software Developer >>> http://www.qi4j.org - New Energy for Java >>> >>> I live here; http://tinyurl.com/3xugrbk >>> I work here; http://tinyurl.com/6a2pl4j >>> I relax here; http://tinyurl.com/2cgsug >>> >>> _______________________________________________ >>> qi4j-dev mailing list >>> [email protected] >>> http://lists.ops4j.org/mailman/listinfo/qi4j-dev >>> >> >> >> _______________________________________________ >> qi4j-dev mailing list >> [email protected] >> http://lists.ops4j.org/mailman/listinfo/qi4j-dev > > > > -- > Niclas Hedhman, Software Developer > http://www.qi4j.org - New Energy for Java > > I live here; http://tinyurl.com/3xugrbk > I work here; http://tinyurl.com/6a2pl4j > I relax here; http://tinyurl.com/2cgsug > > _______________________________________________ > qi4j-dev mailing list > [email protected] > http://lists.ops4j.org/mailman/listinfo/qi4j-dev _______________________________________________ qi4j-dev mailing list [email protected] http://lists.ops4j.org/mailman/listinfo/qi4j-dev
