io.druid.collections

Class CountingMap<K>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

io.druid.java.util.common.guava.DefaultingHashMap<K,AtomicLong>

io.druid.collections.CountingMap<K>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,AtomicLong>

public class CountingMap<K>
extends DefaultingHashMap<K,AtomicLong>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
CountingMap()

Method Summary

Modifier and Type	Method and Description
long	add(K key, long value)
Map<K,Long>	snapshot()

Methods inherited from class io.druid.java.util.common.guava.DefaultingHashMap

get

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

CountingMap

public CountingMap()

Method Detail

add

public long add(K key,
                long value)

snapshot

public Map<K,Long> snapshot()