Re: what change to be done in OutputCollector to print custom writable object

[Rasit OZDAS]

There is also a good alternative,
We use ObjectInputFormat and ObjectRecordReader.
With it you can easily do File <-> Object translations.
I can send a code sample to your mail if you want.

Re: what change to be done in OutputCollector to print custom writable object

[Enis Soztutar]

Deepak Diwakar wrote:

Hi,

I am learning how to make custom-writable working. So I have implemented a
simple MyWriitable class.

And  I can play with the MyWritable object within the Map-Reduce. but
suppose in Reduce Values are a type of MyWritable object and  I put them
into OutputCollector to get final output. Since value is a custom object I
can't get  them into file but a reference.

 What and where I have to make changes /additions so that print into file
function handles the custom-writable object?

Thanks & regards,
  

just implement toString() in your MyWritable class.

what change to be done in OutputCollector to print custom writable object

[Deepak Diwakar]

Hi,

I am learning how to make custom-writable working. So I have implemented a
simple MyWriitable class.

And  I can play with the MyWritable object within the Map-Reduce. but
suppose in Reduce Values are a type of MyWritable object and  I put them
into OutputCollector to get final output. Since value is a custom object I
can't get  them into file but a reference.

 What and where I have to make changes /additions so that print into file
function handles the custom-writable object?

Thanks & regards,
-- 
- Deepak Diwakar,