org.apache.mahout.h2obindings.ops

Class MapBlock

java.lang.Object

org.apache.mahout.h2obindings.ops.MapBlock

public class MapBlock
extends Object

MapBlock operator.

Constructor Summary

Constructors

Constructor and Description
MapBlock()

Method Summary

Methods

Modifier and Type	Method and Description
static <K,R> H2ODrm	exec(H2ODrm drmA, int ncol, Object bmf, boolean isRstr, scala.reflect.ClassTag<K> k, scala.reflect.ClassTag<R> r) Execute a BlockMapFunction on DRM partitions to create a new DRM.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapBlock

public MapBlock()

Method Detail

exec

public static <K,R> H2ODrm exec(H2ODrm drmA,
                int ncol,
                Object bmf,
                boolean isRstr,
                scala.reflect.ClassTag<K> k,
                scala.reflect.ClassTag<R> r)

Execute a BlockMapFunction on DRM partitions to create a new DRM.

Parameters:

drmA - DRM representing matrix A.

ncol - Number of columns output by BMF.

bmf - BlockMapFunction which maps input DRM partition to output.

isRstr - flag indicating if key type of output DRM is a String.

k - ClassTag of intput DRM key type.

r - ClassTag of output DRM key type.

Returns:

new DRM constructed from mapped blocks of drmA through bmf.