Timeuuid inserted with now(), how to get the value back in Java client?

[Andy Atj2 <an...@gmail.com>]

I'm writing a Java client to a Cassandra db.

One of the main primary keys is a timeuuid.

I plan to do INSERTs using now() and have Cassandra generate the value of
the timeuuid.

After the INSERT, I need the Cassandra-generated timeuuid value. Is there
an easy wsay to get it, without having to re-query for the record I just
inserted, hoping to get only one record back? Remember, I don't have the PK.

Eg, in every other db there's a way to get the generated PK back. In sql
it's @@identity, in oracle its...etc etc.

I know Cassandra is not an RDBMS. All I want is the value Cassandra just
generated.

Thanks,
Andy

Re: Timeuuid inserted with now(), how to get the value back in Java client?

[Vivek Mishra <mi...@gmail.com>]

You would get UUID object from cassandra API. Then you may use
uuid.timestamp() to get time stamp for the same

-Vivek


On Tue, Apr 1, 2014 at 9:55 PM, Theo Hultberg <th...@iconara.net> wrote:

> no, there's no way. you should generate the TIMEUUID on the client side so
> that you have it.
>
> T#
>
>
> On Sat, Mar 29, 2014 at 1:01 AM, Andy Atj2 <an...@gmail.com> wrote:
>
>> I'm writing a Java client to a Cassandra db.
>>
>> One of the main primary keys is a timeuuid.
>>
>> I plan to do INSERTs using now() and have Cassandra generate the value of
>> the timeuuid.
>>
>> After the INSERT, I need the Cassandra-generated timeuuid value. Is there
>> an easy wsay to get it, without having to re-query for the record I just
>> inserted, hoping to get only one record back? Remember, I don't have the PK.
>>
>> Eg, in every other db there's a way to get the generated PK back. In sql
>> it's @@identity, in oracle its...etc etc.
>>
>> I know Cassandra is not an RDBMS. All I want is the value Cassandra just
>> generated.
>>
>> Thanks,
>> Andy
>>
>>
>

Re: Timeuuid inserted with now(), how to get the value back in Java client?

[Theo Hultberg <th...@iconara.net>]

no, there's no way. you should generate the TIMEUUID on the client side so
that you have it.

T#


On Sat, Mar 29, 2014 at 1:01 AM, Andy Atj2 <an...@gmail.com> wrote:

> I'm writing a Java client to a Cassandra db.
>
> One of the main primary keys is a timeuuid.
>
> I plan to do INSERTs using now() and have Cassandra generate the value of
> the timeuuid.
>
> After the INSERT, I need the Cassandra-generated timeuuid value. Is there
> an easy wsay to get it, without having to re-query for the record I just
> inserted, hoping to get only one record back? Remember, I don't have the PK.
>
> Eg, in every other db there's a way to get the generated PK back. In sql
> it's @@identity, in oracle its...etc etc.
>
> I know Cassandra is not an RDBMS. All I want is the value Cassandra just
> generated.
>
> Thanks,
> Andy
>
>