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Posted to user@thrift.apache.org by Vivek Goel <go...@gmail.com> on 2013/07/22 17:23:02 UTC

Returning Null in thrift server

Hi,

Is there a way to return null in thrift server ?

I have a string data type , Which can have three possible values:

   1. Empty String
   2. Null String
   3. Some string value

I want to differentiate b/w Empty String and Null String.

Currently I have done like:

MyDataType{

string value;

bool is_null;

}

I set's is_null as true if value is null. Is there any better way of doing
this ?
regards
Vivek Goel

Re: Returning Null in thrift server

Posted by Randy Abernethy <Ra...@rx-m.com>.
Hello Vivek,

You might try making it optional. Then you could have three states:
not set,
set to ""
set to "hello Thrift"

Best,
Randy

On 7/22/2013 8:23 AM, Vivek Goel wrote:
> Hi,
>
> Is there a way to return null in thrift server ?
>
> I have a string data type , Which can have three possible values:
>
>     1. Empty String
>     2. Null String
>     3. Some string value
>
> I want to differentiate b/w Empty String and Null String.
>
> Currently I have done like:
>
> MyDataType{
>
> string value;
>
> bool is_null;
>
> }
>
> I set's is_null as true if value is null. Is there any better way of doing
> this ?
> regards
> Vivek Goel
>


-- 
Randy Abernethy
Managing Partner, RX-M, LLC
randy.abernethy@rx-m.com
Cell: +1-415-624-6447
San Francisco: +1-415-800-2922
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www.rx-m.com
@rxmllc

Re: Returning Null in thrift server

Posted by Dan Kuebrich <da...@gmail.com>.
You could use a union to get closer, but it's highly similar to what you
already proposed.  See: https://issues.apache.org/jira/browse/THRIFT-409


On Mon, Jul 22, 2013 at 11:23 AM, Vivek Goel <go...@gmail.com>wrote:

> Hi,
>
> Is there a way to return null in thrift server ?
>
> I have a string data type , Which can have three possible values:
>
>    1. Empty String
>    2. Null String
>    3. Some string value
>
> I want to differentiate b/w Empty String and Null String.
>
> Currently I have done like:
>
> MyDataType{
>
> string value;
>
> bool is_null;
>
> }
>
> I set's is_null as true if value is null. Is there any better way of doing
> this ?
> regards
> Vivek Goel
>