org.apache.juneau.internal

Class MultiSet<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<E>

org.apache.juneau.internal.MultiSet<E>

Type Parameters:

E - The object type of this set.

All Implemented Interfaces:

Iterable<E>, Collection<E>, Set<E>

public class MultiSet<E>
extends AbstractSet<E>

Encapsulates multiple collections so they can be iterated over as if they were all part of the same collection.

Constructor Summary

Constructors

Constructor and Description
MultiSet(Collection<E>... c) Create a new Set that consists as a coalesced set of the specified collections.

Method Summary

Modifier and Type	Method and Description
MultiSet<E>	append(Collection<E> c) Appends the specified collection to this set of collections.
Enumeration<E>	enumerator() Enumerates over all entries in all collections.
Iterator<E>	iterator() Iterates over all entries in all collections.
int	size()

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, isEmpty, 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, clear, contains, containsAll, isEmpty, 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

MultiSet

public MultiSet(Collection<E>... c)

Create a new Set that consists as a coalesced set of the specified collections.

Parameters:

c - Zero or more collections to add to this set.

Method Detail

append

public MultiSet<E> append(Collection<E> c)

Appends the specified collection to this set of collections.

Parameters:

c - The collection to append to this set of collections.

Returns:

This object (for method chaining).

iterator

public Iterator<E> iterator()

Iterates over all entries in all collections.

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in interface Set<E>

Specified by:

iterator in class AbstractCollection<E>

enumerator

public Enumeration<E> enumerator()

Enumerates over all entries in all collections.

Returns:

An enumeration wrapper around this set.

size

public int size()

Specified by:

size in interface Collection<E>

Specified by:

size in interface Set<E>

Specified by:

size in class AbstractCollection<E>