Utility functions

2013-02-08 Thread rkevinburton 


I was looking at CorrugatedIrons website and I see code like:

var query = new RiakMapReduceQuery()
.Inputs(BucketName)
.MapJs(m = m.Source(@function(o){return[1];}))
.ReduceJs(m = m.Name(@Riak.reduceSum).Keep(true));

I am assuming that functions like Riak.reduceSum are general utility 
functions that are part of the Riak distro. Is there a list of these 
somewhere documenting their use and purpose? There seems to be both 
JavaScript and Erlang methods. I would be interested in both. Thank you.
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Re: Utility functions

2013-02-08 Thread Jeremiah Peschka 
Built-in Javascript functions are provided in:
https://github.com/basho/riak_kv/blob/master/priv/mapred_builtins.js and
https://github.com/basho/erlang_js/blob/master/priv/json2.js

Built-in Erlang functions are in
https://github.com/basho/riak_kv/blob/master/src/riak_kv_mapreduce.erl

---
Jeremiah Peschka - Founder, Brent Ozar Unlimited
MCITP: SQL Server 2008, MVP
Cloudera Certified Developer for Apache Hadoop


On Fri, Feb 8, 2013 at 7:41 AM, rkevinbur...@charter.net wrote:

 I was looking at CorrugatedIrons website and I see code like:

 var query = new RiakMapReduceQuery()
 .Inputs(BucketName)
 .MapJs(m = m.Source(@function(o){return[1];}))
 .ReduceJs(m = m.Name(@Riak.reduceSum).Keep(true));


 I am assuming that functions like Riak.reduceSum are general utility
 functions that are part of the Riak distro. Is there a list of these
 somewhere documenting their use and purpose? There seems to be both
 JavaScript and Erlang methods. I would be interested in both. Thank you.

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riak-users@lists.basho.com
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Re: Utility functions

2013-02-08 Thread Charlie Voiselle 
Kevin:

As mentioned in the Riak MapReduce documentation, you can find more information 
about the pre-built MR jobs here:

https://github.com/basho/riak_kv/blob/master/src/riak_kv_mapreduce.erl  -- 
Erlang Module that contains all of the pre-built Erlang MapReduce Phases
https://github.com/basho/riak_kv/blob/master/priv/mapred_builtins.js -- 
JavaScript source of the pre-built JavaScript MapReduce phases

Hope this helps,
Charle Voiselle


On Feb 8, 2013, at 10:41 AM, rkevinbur...@charter.net wrote:

 I was looking at CorrugatedIrons website and I see code like:
 
 var query = new RiakMapReduceQuery()
 .Inputs(BucketName)
 .MapJs(m = m.Source(@function(o){return[1];}))
 .ReduceJs(m = m.Name(@Riak.reduceSum).Keep(true));
 
 
 I am assuming that functions like Riak.reduceSum are general utility 
 functions that are part of the Riak distro. Is there a list of these 
 somewhere documenting their use and purpose? There seems to be both 
 JavaScript and Erlang methods. I would be interested in both. Thank you.
 ___
 riak-users mailing list
 riak-users@lists.basho.com
 http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com

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riak-users@lists.basho.com
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