Yeah, sorry for being so abstract :-(
Here's the code that works for me:
return db.execute(ctx -> {
Record r = ctx.select().
from(PREFIXES).
where(PREFIXES.NATIONAL.eq(prefix + "")).
fetchOne();
if (r == null) {
return null;
}
return r.map(PREFIX_MAPPER);
});
This query can only ever return 0 or 1 rows. So I was wondering how to
get rid of the check for the null Record instance.
Does that make sense?
On Fri, Jun 27, 2014 at 4:10 PM, Lukas Eder <[email protected]> wrote:
> Ben, I'm sorry, but I don't really know what you're asking me :-)
> What are you looking for? Can you provide an example?
>
>
> 2014-06-27 17:05 GMT+02:00 Ben Hood <[email protected]>:
>>
>> Hey Lukas,
>>
>> Using 3.4 API on JDK8 I was wondering what the idiomatic way is of
>> chaining a map() onto a fetchOne() that could return null. Using
>> fetchOneInto(classDef) seems to handle this internally, which works in
>> a number of cases, but the map() API is more flexible. Or do you have
>> to use some kind of Scala-esque Option?
>>
>> Cheers,
>>
>> Ben
>>
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