Hi Linda, all,
Linda DeMichiel, am 26 Apr 2011 hast Du um 11:42 zum Thema "[jsr338-experts] Re: improved SQL result set mapp" geschrieben :
> I'm afraid I don't understand your comment below about the ordering
> of constructor parameters though. Could you explain further?
maybe I was a bit cryptic here, sorry. What I wanted to point out is :
If we have e.g.
@Target(value={})
@Retention(value=RUNTIME)
public @interface ConstructorResult
{
Class targetClass();
ColumnResult[] columns();
EntityResult[] entities();
}
then we force the users to provide a constructor that first takes
columns and then entities as parameters. You can't specify a
constructor like
MyClass(SomeObject firstColumn, SomeEntity firstEntity,
SomeOtherObject secondColumn, SomeOtherEntity secondEntity)
unless we provide means for that. And I was grumbling a bit that we
don't have inheritance with annotations such that we could introduce an
"abstract" annotation ContructorParameter as element of
ConstructorResult that is extended by both ColumnResult and
EntityResult. That's all.
Best regards
Rainer
---
Rainer Schweigkoffer SAP AG Walldorf
Business Solution & Technology TD Core JS&I
Technology Development Dietmar-Hopp-Allee 16
Java Server Core D-69190 Walldorf
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rainer.schweigkoffer_at_sap.com
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