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From vaibhav thapliyal <vaibhav.thapliyal...@gmail.com>
Subject Re: Custom Iterator output
Date Sat, 18 Apr 2015 00:05:15 GMT
Hi,

I also had this query that might be similar to shweta.

What I want to do is process the key value pairs that I get from
getTopKey() and getTopValue() methods and I want to output that value.

Currently I was writing these values to tables from inside the iterators,
but I read in the new manual that says that doing this isn't a good
practice.

For eg:

If I have these entries in my table:

1 cf1:cq1 value1
2 cf2:cq2 value2
3 cf3:cq3 value3
And suppose I sum the values(or do any opeation) of the row ids using the
values that I get from the getTopKey().getRow() function and store this sum
in a variable called "sum".

So I want to output this variable. How do I go about this?

Thanks
Vaibhav
On 17-Apr-2015 6:40 pm, <dlmarion@comcast.net> wrote:

> via the getTopKey() and getTopValue() methods. [1] should be a simple
> example.
>
> [1]
> https://git-wip-us.apache.org/repos/asf?p=accumulo.git;a=blob;f=core/src/main/java/org/apache/accumulo/core/iterators/user/GrepIterator.java;h=043a729a778fc34d2ee87a0227056ffac81b7fe7;hb=refs/heads/master
>
> ------------------------------
> *From: *"shweta.agrawal" <shweta.agrawal@orkash.com>
> *To: *user@accumulo.apache.org
> *Sent: *Friday, April 17, 2015 8:50:26 AM
> *Subject: *Custom Iterator output
>
> Hi,
>
> I am working on custom iterator. I want to know, how do i get the output
> from the custom iterators?
>
> Thanks and Regards
> Shweta
>
>

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