Module org.jgrapht.core

Package org.jgrapht.util

Class UnmodifiableUnionSet<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<E>

org.jgrapht.util.UnmodifiableUnionSet<E>

Type Parameters:

E - the element type

All Implemented Interfaces:

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

public class UnmodifiableUnionSet<E>
extends AbstractSet<E>
implements Serializable

An unmodifiable live view of the union of two sets.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	UnmodifiableUnionSet.SetSizeOrdering
private class	UnmodifiableUnionSet.UnionIterator

Field Summary

Fields

Modifier and Type	Field	Description
private final Set<E>	first
private final Set<E>	second
private static final long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
UnmodifiableUnionSet(Set<E> first, Set<E> second)	Constructs a new set.

Method Summary

Modifier and Type	Method	Description
boolean	contains(Object o)
Iterator<E>	iterator()
private UnmodifiableUnionSet<E>.SetSizeOrdering	orderSetsBySize()
int	size()	Since the view is live, this operation is no longer a constant time operation.

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, 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.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Set

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

first

private final Set<E> first

second

private final Set<E> second

Constructor Details

UnmodifiableUnionSet

public UnmodifiableUnionSet(Set<E> first,
 Set<E> second)

Constructs a new set.

Parameters:

first - the first set

second - the second set

Method Details

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Set<E>

Specified by:

iterator in class AbstractCollection<E>

size

public int size()

Since the view is live, this operation is no longer a constant time operation.

Specified by:

size in interface Collection<E>

Specified by:

size in interface Set<E>

Specified by:

size in class AbstractCollection<E>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<E>

Specified by:

contains in interface Set<E>

Overrides:

contains in class AbstractCollection<E>

orderSetsBySize

private UnmodifiableUnionSet<E>.SetSizeOrdering orderSetsBySize()