com.basho.riak.client.query

Class MapPhase

java.lang.Object

com.basho.riak.client.query.MapPhase

All Implemented Interfaces:

MapReducePhase

Direct Known Subclasses:

ReducePhase

public class MapPhase
extends Object
implements MapReducePhase

A Map Phase of a Map/Reduce job spec.

Author:

russell

Nested Class Summary

Nested classes/interfaces inherited from interface com.basho.riak.client.query.MapReducePhase

MapReducePhase.PhaseType

Constructor Summary

Constructors

Constructor and Description
MapPhase(Function phaseFunction) Create a MapPhase
MapPhase(Function phaseFunction, boolean keep) Create a MapPhase
MapPhase(Function phaseFunction, Object arg) Create a MapPhase
MapPhase(Function phaseFunction, Object arg, boolean keepResult) Create a MapPhase

Method Summary

Methods

Modifier and Type	Method and Description
Object	getArg()
Function	getPhaseFunction()
MapReducePhase.PhaseType	getType() The PhaseType of this MapReducePhase implementation.
Boolean	isKeep() Is this phase's output to be returned or only passed as input to the next phase.
static MapPhase	map(Function function, Object arg, boolean keep)

Methods inherited from class java.lang.Object

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

Constructor Detail

MapPhase

public MapPhase(Function phaseFunction,
        Object arg,
        boolean keepResult)

Create a MapPhase

Parameters:

phaseFunction - the Function

arg - an argument that will be passed to the phase verbatim (Object#toString)

keepResult - if the result should be returned or merely provide input for the next phase.

See Also:

MapReduce.addMapPhase(Function, Object, boolean)

MapPhase

public MapPhase(Function phaseFunction,
        Object arg)

Create a MapPhase

Parameters:

phaseFunction - the Function

arg - an argument that will be passed to the phase verbatim (Object#toString)

See Also:

MapReduce.addMapPhase(Function, Object)

MapPhase

public MapPhase(Function phaseFunction)

Create a MapPhase

Parameters:

phaseFunction - the Function

See Also:

MapReduce.addMapPhase(Function)

MapPhase

public MapPhase(Function phaseFunction,
        boolean keep)

Create a MapPhase

Parameters:

phaseFunction - the Function

keepResult - if the result should be returned or merely provide input for the next phase.

See Also:

MapReduce.addMapPhase(Function, Object, boolean)

Method Detail

getPhaseFunction

public Function getPhaseFunction()

Returns:

the phaseFunction

isKeep

public Boolean isKeep()

Description copied from interface: MapReducePhase

Is this phase's output to be returned or only passed as input to the next phase.

Specified by:

isKeep in interface MapReducePhase

Returns:

the keep

getArg

public Object getArg()

Returns:

the arg

map

public static MapPhase map(Function function,
           Object arg,
           boolean keep)

getType

public MapReducePhase.PhaseType getType()

Description copied from interface: MapReducePhase

The PhaseType of this MapReducePhase implementation.

Specified by:

getType in interface MapReducePhase

Returns:

a PhaseType.