com.hazelcast.util.collection

Class MapDelegatingSet<V>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<V>

com.hazelcast.util.collection.MapDelegatingSet<V>

Type Parameters:

V - The generic type of the set.

All Implemented Interfaces:

Iterable<V>, Collection<V>, Set<V>

public final class MapDelegatingSet<V>
extends AbstractSet<V>

Read-only collection which delegates its operations to an underlying map and a couple of functions. Designed to easily implement keyset() and values() methods in a map.

Constructor Summary

Constructors

Constructor and Description
MapDelegatingSet(Map<?,?> delegate, Supplier<Iterator<V>> iterator, Predicate contains)

Method Summary

Modifier and Type	Method and Description
void	clear()
boolean	contains(Object o)
boolean	isEmpty()
Iterator<V>	iterator()
int	size()

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

add, addAll, containsAll, remove, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Set

add, addAll, containsAll, remove, retainAll, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

MapDelegatingSet

public MapDelegatingSet(Map<?,?> delegate,
                        Supplier<Iterator<V>> iterator,
                        Predicate contains)

Method Detail

size

public int size()

Specified by:

size in interface Collection<V>

Specified by:

size in interface Set<V>

Specified by:

size in class AbstractCollection<V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<V>

Specified by:

isEmpty in interface Set<V>

Overrides:

isEmpty in class AbstractCollection<V>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<V>

Specified by:

contains in interface Set<V>

Overrides:

contains in class AbstractCollection<V>

iterator

public Iterator<V> iterator()

Specified by:

iterator in interface Iterable<V>

Specified by:

iterator in interface Collection<V>

Specified by:

iterator in interface Set<V>

Specified by:

iterator in class AbstractCollection<V>

clear

public void clear()

Specified by:

clear in interface Collection<V>

Specified by:

clear in interface Set<V>

Overrides:

clear in class AbstractCollection<V>