Package 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:

Map<K,Replica>

Enclosing class:

AbstractReplicaCollection<C extends AbstractReplicaCollection<C>>

protected static class AbstractReplicaCollection.ReplicaMap<K>
extends 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

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

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

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

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

Method Summary

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

ReplicaMap

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

ReplicaMap

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

Method Details

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,Replica>

Overrides:

containsKey in class AbstractMap<K,Replica>

get

public Replica get(Object key)

Specified by:

get in interface Map<K,Replica>

Overrides:

get in class AbstractMap<K,Replica>

remove

public Replica remove(Object key)

Specified by:

remove in interface Map<K,Replica>

Overrides:

remove in class AbstractMap<K,Replica>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,Replica>

Overrides:

keySet in class AbstractMap<K,Replica>

entrySet

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

Specified by:

entrySet in interface Map<K,Replica>

Specified by:

entrySet in class AbstractMap<K,Replica>

size

public int size()

Specified by:

size in interface Map<K,Replica>

Overrides:

size in class AbstractMap<K,Replica>