org.apache.flink.graph.asm.translate

Class TranslateVertexValues<K,OLD,NEW,EV>

java.lang.Object

org.apache.flink.graph.utils.proxy.GraphAlgorithmWrappingGraph<K,OLD,EV,K,NEW,EV>

org.apache.flink.graph.asm.translate.TranslateVertexValues<K,OLD,NEW,EV>

Type Parameters:

K - vertex ID type

OLD - old vertex value type

NEW - new vertex value type

EV - edge value type

All Implemented Interfaces:

GraphAlgorithm<K,OLD,EV,Graph<K,NEW,EV>>

public class TranslateVertexValues<K,OLD,NEW,EV>
extends GraphAlgorithmWrappingGraph<K,OLD,EV,K,NEW,EV>

Translate Vertex values using the given TranslateFunction.

Constructor Summary

Constructors

Constructor and Description
TranslateVertexValues(TranslateFunction<OLD,NEW> translator) Translate Vertex values using the given TranslateFunction.

Method Summary

Methods

Modifier and Type	Method and Description
protected String	getAlgorithmName() Algorithms are identified by name rather than by class to allow subclassing.
protected boolean	mergeConfiguration(GraphAlgorithmWrappingGraph other) An algorithm must first test whether the configurations can be merged before merging individual fields.
Graph<K,NEW,EV>	runInternal(Graph<K,OLD,EV> input) The implementation of the algorithm, renamed from GraphAlgorithm.run(Graph).
TranslateVertexValues<K,OLD,NEW,EV>	setParallelism(int parallelism) Override the operator parallelism.

Methods inherited from class org.apache.flink.graph.utils.proxy.GraphAlgorithmWrappingGraph

equals, hashCode, run

Methods inherited from class java.lang.Object

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

Constructor Detail

TranslateVertexValues

public TranslateVertexValues(TranslateFunction<OLD,NEW> translator)

Translate Vertex values using the given TranslateFunction.

Parameters:

translator - implements conversion from OLD to NEW

Method Detail

setParallelism

public TranslateVertexValues<K,OLD,NEW,EV> setParallelism(int parallelism)

Override the operator parallelism.

Parameters:

parallelism - operator parallelism

Returns:

this

getAlgorithmName

protected String getAlgorithmName()

Description copied from class: GraphAlgorithmWrappingGraph

Algorithms are identified by name rather than by class to allow subclassing.

Specified by:

getAlgorithmName in class GraphAlgorithmWrappingGraph<K,OLD,EV,K,NEW,EV>

Returns:

name of the algorithm, which may be shared by multiple classes implementing the same algorithm and generating the same output

mergeConfiguration

protected boolean mergeConfiguration(GraphAlgorithmWrappingGraph other)

Description copied from class: GraphAlgorithmWrappingGraph

An algorithm must first test whether the configurations can be merged before merging individual fields.

Specified by:

mergeConfiguration in class GraphAlgorithmWrappingGraph<K,OLD,EV,K,NEW,EV>

Parameters:

other - the algorithm with which to compare and merge

Returns:

true if and only if configuration has been merged and the algorithm's output can be reused

runInternal

public Graph<K,NEW,EV> runInternal(Graph<K,OLD,EV> input)
                            throws Exception

Description copied from class: GraphAlgorithmWrappingGraph

The implementation of the algorithm, renamed from GraphAlgorithm.run(Graph).

Specified by:

runInternal in class GraphAlgorithmWrappingGraph<K,OLD,EV,K,NEW,EV>

Parameters:

input - the input graph

Returns:

the algorithm's output

Throws:

Exception