Package org.apache.wayang.basic.mapping

Class PageRankMapping.RankInitializer

java.lang.Object

org.apache.wayang.basic.mapping.PageRankMapping.RankInitializer

All Implemented Interfaces:

Serializable, Function<Long,Tuple2<Long,Float>>, ExtendedFunction, FunctionDescriptor.ExtendedSerializableFunction<Long,Tuple2<Long,Float>>, FunctionDescriptor.SerializableFunction<Long,Tuple2<Long,Float>>

Enclosing class:

PageRankMapping

public static class PageRankMapping.RankInitializer
extends Object
implements FunctionDescriptor.ExtendedSerializableFunction<Long,Tuple2<Long,Float>>

Creates intial page ranks.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
RankInitializer()

Method Summary

Modifier and Type	Method	Description
Tuple2<Long,Float>	apply(Long vertexId)
void	open(ExecutionContext ctx)	Called before this instance is actually executed.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Constructor Details

RankInitializer

public RankInitializer()

Method Details

open

public void open(ExecutionContext ctx)

Description copied from interface: ExtendedFunction

Called before this instance is actually executed.

Specified by:

open in interface ExtendedFunction

Parameters:

ctx - the ExecutionContext

apply

public Tuple2<Long,Float> apply(Long vertexId)

Specified by:

apply in interface Function<Long,Tuple2<Long,Float>>