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From Andres Angel <ingenieroandresan...@gmail.com>
Subject Re: Accessing variables build within a map/flatmap function within a DS
Date Wed, 24 Jul 2019 13:05:39 GMT
Sure guys thanks for the support.

I need to create an register a table based on the content of a DS<>, the
point is that within the content I need to parse it somehow and get the
part which is the values and the headers. I already tried to create a DS
and register the new DS as table with headers and values catch within the
anonymous function.

However the anonymous function can not reach my env and tenv. therefore I
can yes create the DS with values but I need to store the headers to be
accessed out from the anonymous and register the tenv with the content of
the new DS and the headers from my variable. I bit weird maybe I know but
this is what we need :).

AU

On Wed, Jul 24, 2019 at 9:01 AM Chesnay Schepler <chesnay@apache.org> wrote:

> Note that this will only work when running the the application in the IDE;
> specifically it will not work when running on an actual cluster, since your
> function isn't executed on the same machine as your (presumably) main[]
> function.
>
> We can give you better advice if you tell us what exactly you're trying to
> achieve.
>
> On 24/07/2019 14:53, Caizhi Weng wrote:
>
> Hi Andres,
>
> Just define a variable outside and modify it in the anonymous class.
>
> Andres Angel <ingenieroandresangel@gmail.com> 于2019年7月24日周三 下午8:44写道:
>
>> Hello everyone,
>>
>> I was wondering if there is a way how to read the content of a varible
>> build within a map/flatmap function out of the DS method.
>>
>> example:
>>
>>  DataStream<String> dsString = env.fromElements("1,a,1.1|2,b,2.2,-2",
>> "3,c|4,d,4.4");
>>     DataStream<Object> dsTuple = dsString.flatMap(new
>> FlatMapFunction<String, Object>() {
>>         @Override
>>         public void flatMap(String value, Collector<Object> out) throws
>> Exception {
>>             String var1 = "dummy";
>>
>>         }
>>     });
>>
>>     System.out.print(var1);
>>
>> thanks so much
>>
>
>

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