org.apache.flink.runtime.managementgraph

Class ManagementGroupVertexIterator

java.lang.Object

org.apache.flink.runtime.managementgraph.ManagementGroupVertexIterator

All Implemented Interfaces:

Iterator<ManagementGroupVertex>

public final class ManagementGroupVertexIterator
extends Object
implements Iterator<ManagementGroupVertex>

This class provides an implementation of the Iterator interface which allows to traverse a management graph and visit every reachable group vertex exactly once. The order in which the group vertices are visited corresponds to the order of their discovery in a depth first search. This class is not thread-safe.

Constructor Summary

Constructors

Constructor and Description
ManagementGroupVertexIterator(ManagementGraph managementGraph, boolean forward, int stage) Creates a new management group vertex iterator.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	hasNext()
ManagementGroupVertex	next()
void	remove()

Methods inherited from class java.lang.Object

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

Constructor Detail

ManagementGroupVertexIterator

public ManagementGroupVertexIterator(ManagementGraph managementGraph,
                             boolean forward,
                             int stage)

Creates a new management group vertex iterator.

Parameters:

managementGraph - the management graph that should be traversed

forward - true if the graph should be traversed in correct order, false to reverse it in reverse order

stage - the number of the stage whose vertices should be traversed or -1 if all stages should be included in the traversal

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<ManagementGroupVertex>

next

public ManagementGroupVertex next()

Specified by:

next in interface Iterator<ManagementGroupVertex>

remove

public void remove()

Specified by:

remove in interface Iterator<ManagementGroupVertex>