Module org.jhotdraw8.icollection

Package org.jhotdraw8.icollection.facade

Class ReadOnlySetFacade<E>

java.lang.Object

org.jhotdraw8.icollection.readonly.AbstractReadOnlyCollection<E>

org.jhotdraw8.icollection.readonly.AbstractReadOnlySet<E>

org.jhotdraw8.icollection.facade.ReadOnlySetFacade<E>

Type Parameters:

E - the element type

All Implemented Interfaces:

Iterable<E>, ReadOnlyCollection<E>, ReadOnlySet<E>

Direct Known Subclasses:

ReadOnlyNavigableSetFacade, ReadOnlySequencedSetFacade, ReadOnlySortedSetFacade

public class ReadOnlySetFacade<E>
extends AbstractReadOnlySet<E>

Provides a ReadOnlySet facade to a set of Set functions.

Author:

Werner Randelshofer

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	characteristics	Characteristics of the spliterator.
protected final Predicate<Object>	containsFunction
protected final Supplier<Iterator<E>>	iteratorFunction
protected final IntSupplier	sizeFunction

Constructor Summary

Constructors

Constructor	Description
ReadOnlySetFacade(Collection<E> backingSet)
ReadOnlySetFacade(Supplier<Iterator<E>> iteratorFunction, IntSupplier sizeFunction, Predicate<Object> containsFunction, int characteristics)
ReadOnlySetFacade(ReadOnlyCollection<E> backingSet)

Method Summary

Modifier and Type	Method	Description
boolean	contains(Object o)	Returns true if this collection contains the specified object.
int	hashCode()	Returns the hash code value for this set.
Iterator<E>	iterator()	Returns an iterator over the elements in this collection.
int	size()	Returns the size of the collection.
Spliterator<E>	spliterator()

Methods inherited from class org.jhotdraw8.icollection.readonly.AbstractReadOnlySet

equals

Methods inherited from class org.jhotdraw8.icollection.readonly.AbstractReadOnlyCollection

toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface org.jhotdraw8.icollection.readonly.ReadOnlyCollection

asCollection, containsAll, isEmpty, stream, toArray, toArray

Methods inherited from interface org.jhotdraw8.icollection.readonly.ReadOnlySet

asSet, characteristics

Field Details

iteratorFunction

protected final Supplier<Iterator<E>> iteratorFunction

sizeFunction

protected final IntSupplier sizeFunction

containsFunction

protected final Predicate<Object> containsFunction

characteristics

protected final int characteristics

Characteristics of the spliterator.

Constructor Details

ReadOnlySetFacade

public ReadOnlySetFacade(ReadOnlyCollection<E> backingSet)

ReadOnlySetFacade

public ReadOnlySetFacade(Collection<E> backingSet)

ReadOnlySetFacade

public ReadOnlySetFacade(Supplier<Iterator<E>> iteratorFunction,
 IntSupplier sizeFunction,
 Predicate<Object> containsFunction,
 int characteristics)

Method Details

size

public int size()

Description copied from interface: ReadOnlyCollection

Returns the size of the collection.

Returns:

the size

contains

public boolean contains(Object o)

Description copied from interface: ReadOnlyCollection

Returns true if this collection contains the specified object.

Specified by:

contains in interface ReadOnlyCollection<E>

Overrides:

contains in class AbstractReadOnlyCollection<E>

Parameters:

o - an object

Returns:

true if this collection contains the specified object

iterator

public Iterator<E> iterator()

Description copied from interface: ReadOnlyCollection

Returns an iterator over the elements in this collection.

Returns:

an iterator

spliterator

public Spliterator<E> spliterator()

hashCode

public int hashCode()

Description copied from interface: ReadOnlySet

Returns the hash code value for this set. The hash code is the sum of the hash code of its elements.

Implementations of this method should use ReadOnlySet.iteratorToHashCode(java.util.Iterator<E>).

Specified by:

hashCode in interface ReadOnlySet<E>

Overrides:

hashCode in class AbstractReadOnlySet<E>

Returns:

the hash code value for this set

See Also:

• Set.hashCode()