org.apache.cassandra.locator

Class AbstractReplicaCollection.ReplicaMap<K>

java.lang.Object

java.util.AbstractMap<K,Replica>

org.apache.cassandra.locator.AbstractReplicaCollection.ReplicaMap<K>

All Implemented Interfaces:

java.util.Map<K,Replica>

Enclosing class:

AbstractReplicaCollection<C extends AbstractReplicaCollection<C>>

protected static class AbstractReplicaCollection.ReplicaMap<K>
extends java.util.AbstractMap<K,Replica>

A simple map that ensures the underlying list's iteration order is maintained, and can be shared with subLists (either produced via subList, or via filter that naturally produced a subList). This permits us to reduce the amount of garbage generated, by not unnecessarily copying, reduces the amount of indirection necessary, as well as ensuring monomorphic callsites. The underlying map is also more efficient, particularly for such small collections as we typically produce.

Nested Class Summary

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

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

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

java.util.Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
ReplicaMap(AbstractReplicaCollection.ReplicaList list, java.util.function.Function<Replica,K> toKey)
ReplicaMap(AbstractReplicaCollection.ReplicaList list, java.util.function.Function<Replica,K> toKey, com.carrotsearch.hppc.ObjectIntHashMap<K> map)

Method Summary

Modifier and Type	Method and Description
boolean	containsKey(java.lang.Object key)
java.util.Set<java.util.Map.Entry<K,Replica>>	entrySet()
Replica	get(java.lang.Object key)
java.util.Set<K>	keySet()
Replica	remove(java.lang.Object key)
int	size()

Methods inherited from class java.util.AbstractMap

clear, clone, containsValue, equals, hashCode, isEmpty, put, putAll, toString, values

Methods inherited from class java.lang.Object

finalize, 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

ReplicaMap

public ReplicaMap(AbstractReplicaCollection.ReplicaList list,
                  java.util.function.Function<Replica,K> toKey)

ReplicaMap

public ReplicaMap(AbstractReplicaCollection.ReplicaList list,
                  java.util.function.Function<Replica,K> toKey,
                  com.carrotsearch.hppc.ObjectIntHashMap<K> map)

Method Detail

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map<K,Replica>

Overrides:

containsKey in class java.util.AbstractMap<K,Replica>

get

public Replica get(java.lang.Object key)

Specified by:

get in interface java.util.Map<K,Replica>

Overrides:

get in class java.util.AbstractMap<K,Replica>

remove

public Replica remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<K,Replica>

Overrides:

remove in class java.util.AbstractMap<K,Replica>

keySet

public java.util.Set<K> keySet()

Specified by:

keySet in interface java.util.Map<K,Replica>

Overrides:

keySet in class java.util.AbstractMap<K,Replica>

entrySet

public java.util.Set<java.util.Map.Entry<K,Replica>> entrySet()

Specified by:

entrySet in interface java.util.Map<K,Replica>

Specified by:

entrySet in class java.util.AbstractMap<K,Replica>

size

public int size()

Specified by:

size in interface java.util.Map<K,Replica>

Overrides:

size in class java.util.AbstractMap<K,Replica>