org.apache.giraph.function.vertex

Interface FunctionWithVertex<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable,F,T>

Type Parameters:

I - Vertex id type

V - Vertex value type

E - Edge value type

F - Argument type

T - Result type

All Superinterfaces:

PairFunction<Vertex<I,V,E>,F,T>, Serializable

public interface FunctionWithVertex<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable,F,T>
extends PairFunction<Vertex<I,V,E>,F,T>, Serializable

Function: (vertex, F) -> T Determines an output value based on a vertex and an input value.

Method Summary

Modifier and Type	Method and Description
T	apply(Vertex<I,V,E> vertex, F input) Returns the result of applying this function to given vertex and input.

Method Detail

apply

T apply(Vertex<I,V,E> vertex,
        F input)

Returns the result of applying this function to given vertex and input. The returned object may or may not be a new instance, depending on the implementation.

Specified by:

apply in interface PairFunction<Vertex<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>,F,T>

Parameters:

vertex - Vertex

input - Input

Returns:

result