org.apache.hadoop.hdfs.util

Class EnumCounters.Map<K,E extends Enum<E>,C extends EnumCounters<E>>

java.lang.Object

org.apache.hadoop.hdfs.util.EnumCounters.Map<K,E,C>

Type Parameters:

K - the key type

E - the enum type

C - the counter type

Direct Known Subclasses:

Content.CountsMap

Enclosing class:

EnumCounters<E extends Enum<E>>

public static class EnumCounters.Map<K,E extends Enum<E>,C extends EnumCounters<E>>
extends Object

A key-value map which maps the keys to EnumCounters. Note that null key is supported.

Constructor Summary

Constructors

Constructor and Description
EnumCounters.Map(EnumCounters.Factory<E,C> factory) Construct a map.

Method Summary

Methods

Modifier and Type	Method and Description
C	getCounts(K key)
C	sum()
long	sum(E e)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumCounters.Map

public EnumCounters.Map(EnumCounters.Factory<E,C> factory)

Construct a map.

Method Detail

getCounts

public final C getCounts(K key)

Returns:

the counters for the given key.

sum

public final C sum()

Returns:

the sum of the values of all the counters.

sum

public final long sum(E e)

Returns:

the sum of the values of all the counters for e.

toString

public String toString()

Overrides:

toString in class Object