On Friday, December 23, 2016 at 3:01:19 PM UTC+1, Oleksandr Gubchenko wrote:
>
> Try
> record.getIdentity();
>
> Il giorno venerdì 23 dicembre 2016 14:41:42 UTC+1, TomekK ha scritto:
>>
>> Hello, could you help me?
>>
>> I have class with documents with link to attachments in another class.
>> I need to get RIDs and some (not all) fields.
>>
>> My code:
>> final OSQLSynchQuery<ODocument> query = new
>> OSQLSynchQuery<ODocument>("select @rid as id, attachmentRID, field_1,
>> field_2 from Mail");
>> for (ODocument record : resultset) {
>> ORID rid = ((ODocument)record.field("id")).getIdentity();
>> ORID arrachmentRid =
>> ((ODocument)record.field("attachment")).getIdentity();
>> ...
>> }}
>>
>> 1) What's the proper way to get RID of document, or linked document?
>> I suppose that there is a better way, because I don't want to get all
>> document, but only RIDs.
>>
>> 2) Is "select field_1, field_2, ... field_k from..." faster or require
>> lower memory than getting all field "select * from... "?
>> Some of the fields stores files, and I don't want to download them from
>> the database, when it's not necessary. Should I put them into different
>> class and use OType.Link?
>>
>>
>>
>>
>>
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