Hi Gordon, all,
Gordon Yorke, am 14 Mar 2011 hast Du um 14:47 zum Thema "[jsr338-experts] Re: query improvements: downcast" geschrieben :
> My concern with IS or INSTANCEOF is those keywords already have an
> associated meaning and the TREAT functionality is more complex. It is a
> combination of an instanceof and a cast. IS or INSTANCEOF implies that
> it is an equality expression (ie "TYPE(p) = SmallProject") and fails to
> indicate that the type of p has changed in the expression. If the type
> is not changed then the expression becomes confusing and difficult to
> read. Parsing and validation becomes more challenging and far too much
> emphasis is place on the location of round brackets which will greatly
> impact readability.
>
> I do not think there is any concerns using TREAT as users are aware that
> this JPQL and JPQL has its own semantics.
Well, I am not an English native, but I was thinking in terms of
something like FEATURES or FEATURING.
Best regards
Rainer
---
Rainer Schweigkoffer SAP AG Walldorf
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