org.apache.hadoop.util
Enum QueueProcessingStatistics.State

java.lang.Object
  java.lang.Enum<QueueProcessingStatistics.State>
      org.apache.hadoop.util.QueueProcessingStatistics.State

All Implemented Interfaces:

Serializable, Comparable<QueueProcessingStatistics.State>

Enclosing class:

QueueProcessingStatistics

public static enum QueueProcessingStatistics.State
extends Enum<QueueProcessingStatistics.State>

This enum provides the "states" of a state machine for QueueProcessingStatistics. The meanings of the states are:

• BEGIN_COLLECTING - Ready to begin.
• IN_FIRST_CYCLE - Started the first cycle.
• IN_SOLE_CYCLE - Still in first cycle, but already know there will be no further cycles because this one will complete all needed work. When done, will go straight to "DONE_COLLECTING".
• DONE_FIRST_CYCLE - Done first cycle, doing subsequent cycles.
• IN_LAST_CYCLE - Started the last cycle.
• DONE_COLLECTING - Done with last cycle, finishing up.

Enum Constant Summary

BEGIN_COLLECTING

DONE_COLLECTING

DONE_FIRST_CYCLE

IN_FIRST_CYCLE

IN_LAST_CYCLE

IN_SOLE_CYCLE

Method Summary

static QueueProcessingStatistics.State	valueOf(String name) Returns the enum constant of this type with the specified name.
static QueueProcessingStatistics.State[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BEGIN_COLLECTING

public static final QueueProcessingStatistics.State BEGIN_COLLECTING

IN_FIRST_CYCLE

public static final QueueProcessingStatistics.State IN_FIRST_CYCLE

IN_SOLE_CYCLE

public static final QueueProcessingStatistics.State IN_SOLE_CYCLE

DONE_FIRST_CYCLE

public static final QueueProcessingStatistics.State DONE_FIRST_CYCLE

IN_LAST_CYCLE

public static final QueueProcessingStatistics.State IN_LAST_CYCLE

DONE_COLLECTING

public static final QueueProcessingStatistics.State DONE_COLLECTING

Method Detail

values

public static QueueProcessingStatistics.State[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (QueueProcessingStatistics.State c : QueueProcessingStatistics.State.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static QueueProcessingStatistics.State valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null