Package org.apache.commons.collections4.multimap

Class AbstractMultiValuedMap.WrappedCollection

java.lang.Object

org.apache.commons.collections4.multimap.AbstractMultiValuedMap.WrappedCollection

All Implemented Interfaces:

Iterable<V>, Collection<V>

Direct Known Subclasses:

AbstractListValuedMap.WrappedList, AbstractSetValuedMap.WrappedSet

Enclosing class:

AbstractMultiValuedMap<K,V>

class AbstractMultiValuedMap.WrappedCollection
extends Object
implements Collection<V>

Wrapped collection to handle add and remove on the collection returned by get(object).

Currently, the wrapped collection is not cached and has to be retrieved from the underlying map. This is safe, but not very efficient and should be improved in subsequent releases. For this purpose, the scope of this collection is set to package private to simplify later refactoring.

Field Summary

Fields

Modifier and Type	Field	Description
protected final K	key

Constructor Summary

Constructors

Constructor	Description
WrappedCollection(K key)

Method Summary

Modifier and Type	Method	Description
boolean	add(V value)
boolean	addAll(Collection<? extends V> other)
void	clear()
boolean	contains(Object obj)
boolean	containsAll(Collection<?> other)
protected Collection<V>	getMapping()
boolean	isEmpty()
Iterator<V>	iterator()
boolean	remove(Object item)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
int	size()
Object[]	toArray()
<T> T[]	toArray(T[] a)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

equals, hashCode, parallelStream, removeIf, spliterator, stream

Methods inherited from interface java.lang.Iterable

forEach

Field Details

key

protected final K key

Constructor Details

WrappedCollection

public WrappedCollection(K key)

Method Details

getMapping

protected Collection<V> getMapping()

add

public boolean add(V value)

Specified by:

add in interface Collection<V>

addAll

public boolean addAll(Collection<? extends V> other)

Specified by:

addAll in interface Collection<V>

clear

public void clear()

Specified by:

clear in interface Collection<V>

iterator

public Iterator<V> iterator()

Specified by:

iterator in interface Collection<V>

Specified by:

iterator in interface Iterable<V>

size

public int size()

Specified by:

size in interface Collection<V>

contains

public boolean contains(Object obj)

Specified by:

contains in interface Collection<V>

containsAll

public boolean containsAll(Collection<?> other)

Specified by:

containsAll in interface Collection<V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<V>

remove

public boolean remove(Object item)

Specified by:

remove in interface Collection<V>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<V>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<V>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<V>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<V>

toString

public String toString()

Overrides:

toString in class Object