Oh good. The way I am coding it, the flag will be ignored if SqlFragmentAlias elements are present.
On Mon, Jun 25, 2012 at 3:40 PM, Steve Ebersole <st...@hibernate.org> wrote: > And by the way, I think you are right in that if there are any explicit > SqlFragmentAlias bits supplied, that we infer 'deduceAliasInjectionPoints' > as being false. > > > On 06/25/2012 08:29 AM, Rob Worsnop wrote: > >> Got it. Earlier you were looking for suggestions for a less verbose name >> for this. How about "autoAliasInjection"? >> >> On Mon, Jun 25, 2012 at 8:20 AM, Steve Ebersole <st...@hibernate.org >> <mailto:st...@hibernate.org>> wrote: >> >> 'deduceAliasInjectionPoints' is important when you don't have >> injections. Otherwise Hibernate ends up scanning the condition >> fragment for no reason. >> >> >> On Fri 22 Jun 2012 11:09:31 AM CDT, Rob Worsnop wrote: >> >> On Mon, Jun 4, 2012 at 12:14 PM, Steve Ebersole >> <st...@hibernate.org <mailto:st...@hibernate.org>> wrote: >> >> 1) I think adding support for {alias} is a more general >> issue. Its >> applicable to many other pieces of mapping metadata >> (@Formula, etc). More I >> was responding to David's comment there. I totally think it >> makes sense to >> support this in all of those cases. I guess the vote point >> there is whether >> we want to introduce that support piecemeal or develop it >> across the board. >> If we do do it piecemeal I think another piece of >> information we will need >> is a flag indicating whether to scan for alias injection >> points. By >> "scanning" I mean the processing we do today where we >> tokenize the fragment >> string and then try to guess where an alias is needed. >> Let's call this >> flag 'deduceAliasInjectionPoints' for now. I tend to favor >> meaningful >> attribute names so my suggested names tend to get a little >> long; I am open >> to suggestions for a more succinct name. Anyway, I think it >> needs to be >> TRUE by default to maintain backwards compatible behavior. >> Here is an >> example: >> >> @Filter(name="iqMin", table="ZOOLOGY_HUMAN", >> condition="{alias}.HUMAN_IQ >= >> :min", deduceAliasInjectionPoints=__**false) >> >> >> Here there is no need to deduce the points at which to >> inject an alias; we >> have done that for Hibernate in the supplied condition >> fragment. >> >> I think another discussion revolves around cases in which >> the fragment >> involves references to columns from multiple tables. Mostly >> this is >> important for scenarios involving secondary tables and >> inheritance. Do we >> want to provide support for that? Using the classic >> org.hibernate.test.hql.Animal hierarchy from the testsuite, >> maybe something >> like: >> >> @Filter( >> name="iqMin", >> condition="{a}.bodyWeight >= :minWeight and {m}.birthdate < >> :ageCutOffBirthDate", >> deduceAliasInjectionPoints=__**false, >> >> aliases={ >> @SqlFragmentAlias( alias="a", entity=Animal.class ), >> @SqlFragmentAlias( alias="m", entity=Mammal.class ) >> } >> ) >> >> >> How about just applying the secondary table usage to everything? >> >> So, to rewrite your first example: >> >> @Filter(name="iqMin", condition="{h}.HUMAN_IQ >=> :min", >> aliases={@SqlFragmentAlias( alias="h", >> table="ZOOLOGY_HUMAN" )}) >> >> Note that I didn't include "deduceAliasInjectionPoints". Wouldn't >> we >> just infer that from the presence of the aliases element? >> >> >> -- >> st...@hibernate.org <mailto:st...@hibernate.org> >> http://hibernate.org >> >> >> > -- > st...@hibernate.org > http://hibernate.org > > > _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
