Package com.google.common.collect

Class HashMultiset<E>

java.lang.Object

java.util.AbstractCollection<E>

com.google.common.collect.AbstractMultiset<E>

com.google.common.collect.AbstractMapBasedMultiset<E>

com.google.common.collect.HashMultiset<E>

All Implemented Interfaces:

Multiset<E>, java.io.Serializable, java.lang.Iterable<E>, java.util.Collection<E>

@GwtCompatible(serializable=true,
               emulated=true)
public final class HashMultiset<E>
extends AbstractMapBasedMultiset<E>

Multiset implementation backed by a HashMap.

Since:

2.0

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.collect.AbstractMultiset

AbstractMultiset.ElementSet, AbstractMultiset.EntrySet

Nested classes/interfaces inherited from interface com.google.common.collect.Multiset

Multiset.Entry<E>

Field Summary

Fields

Modifier and Type	Field	Description
private static long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor	Description
private	HashMultiset()
private	HashMultiset(int distinctElements)

Method Summary

Modifier and Type	Method	Description
static <E> HashMultiset<E>	create()	Creates a new, empty HashMultiset using the default initial capacity.
static <E> HashMultiset<E>	create(int distinctElements)	Creates a new, empty HashMultiset with the specified expected number of distinct elements.
static <E> HashMultiset<E>	create(java.lang.Iterable<? extends E> elements)	Creates a new HashMultiset containing the specified elements.
private void	readObject(java.io.ObjectInputStream stream)
private void	writeObject(java.io.ObjectOutputStream stream)

Methods inherited from class com.google.common.collect.AbstractMapBasedMultiset

add, clear, count, distinctElements, elementIterator, entryIterator, entrySet, forEachEntry, iterator, remove, setBackingMap, setCount, size

Methods inherited from class com.google.common.collect.AbstractMultiset

add, addAll, contains, createElementSet, createEntrySet, elementSet, equals, hashCode, isEmpty, remove, removeAll, retainAll, setCount, toString

Methods inherited from class java.util.AbstractCollection

containsAll, toArray, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray, toArray, toArray

Methods inherited from interface com.google.common.collect.Multiset

containsAll, forEach, spliterator

Field Detail

serialVersionUID

@GwtIncompatible
private static final long serialVersionUID

See Also:

Constant Field Values

Constructor Detail

HashMultiset

private HashMultiset()

HashMultiset

private HashMultiset(int distinctElements)

Method Detail

create

public static <E> HashMultiset<E> create()

Creates a new, empty HashMultiset using the default initial capacity.

create

public static <E> HashMultiset<E> create(int distinctElements)

Creates a new, empty HashMultiset with the specified expected number of distinct elements.

Parameters:

distinctElements - the expected number of distinct elements

Throws:

java.lang.IllegalArgumentException - if distinctElements is negative

create

public static <E> HashMultiset<E> create(java.lang.Iterable<? extends E> elements)

Creates a new HashMultiset containing the specified elements.

This implementation is highly efficient when elements is itself a Multiset.

Parameters:

elements - the elements that the multiset should contain

writeObject

@GwtIncompatible
private void writeObject(java.io.ObjectOutputStream stream)
                  throws java.io.IOException

Throws:

java.io.IOException

readObject

@GwtIncompatible
private void readObject(java.io.ObjectInputStream stream)
                 throws java.io.IOException,
                        java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException