org.apache.flink.graph.utils

Class GraphUtils

java.lang.Object

org.apache.flink.graph.utils.GraphUtils

public class GraphUtils
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GraphUtils.AddLongValue Add LongValue elements.
static class	GraphUtils.MapTo<I,O> Map each element to a value.

Constructor Summary

Constructors

Constructor and Description
GraphUtils()

Method Summary

Modifier and Type	Method and Description
static <T> org.apache.flink.api.java.DataSet<org.apache.flink.types.LongValue>	count(org.apache.flink.api.java.DataSet<T> input) Count the number of elements in a DataSet.

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphUtils

public GraphUtils()

Method Detail

count

public static <T> org.apache.flink.api.java.DataSet<org.apache.flink.types.LongValue> count(org.apache.flink.api.java.DataSet<T> input)

Count the number of elements in a DataSet.

Type Parameters:

T - element type

Parameters:

input - DataSet of elements to be counted

Returns:

count