org.apache.kafka.server.util

Class TranslatedValueMapView<K,V,B>

java.lang.Object

java.util.AbstractMap<K,V>

org.apache.kafka.server.util.TranslatedValueMapView<K,V,B>

All Implemented Interfaces:

Map<K,V>

public final class TranslatedValueMapView<K,V,B>
extends AbstractMap<K,V>

A map which presents a lightweight view of another "underlying" map. Values in the underlying map will be translated by a callback before they are returned. This class is not internally synchronized. (Typically the underlyingMap is treated as immutable.)

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
TranslatedValueMapView(Map<K,B> underlyingMap, Function<B,V> valueMapping)

Method Summary

Modifier and Type	Method and Description
boolean	containsKey(Object key)
Set<Map.Entry<K,V>>	entrySet()
V	get(Object key)
boolean	isEmpty()

Methods inherited from class java.util.AbstractMap

clear, containsValue, equals, hashCode, keySet, put, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

TranslatedValueMapView

public TranslatedValueMapView(Map<K,B> underlyingMap,
                              Function<B,V> valueMapping)

Method Detail

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

Overrides:

containsKey in class AbstractMap<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class AbstractMap<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

Specified by:

entrySet in class AbstractMap<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

Overrides:

isEmpty in class AbstractMap<K,V>