Package org.apache.commons.collections4.set

Class PredicatedNavigableSet<E>

java.lang.Object

org.apache.commons.collections4.collection.AbstractCollectionDecorator<E>

org.apache.commons.collections4.collection.PredicatedCollection<E>

org.apache.commons.collections4.set.PredicatedSet<E>

org.apache.commons.collections4.set.PredicatedSortedSet<E>

org.apache.commons.collections4.set.PredicatedNavigableSet<E>

Type Parameters:

E - the type of the elements in this set

All Implemented Interfaces:

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

public class PredicatedNavigableSet<E>
extends PredicatedSortedSet<E>
implements NavigableSet<E>

Decorates another NavigableSet to validate that all additions match a specified predicate.

This set exists to provide validation for the decorated set. It is normally created to decorate an empty set. If an object cannot be added to the set, an IllegalArgumentException is thrown.

One usage would be to ensure that no null entries are added to the set.

 NavigableSet set =
   PredicatedSortedSet.predicatedNavigableSet(new TreeSet(),
                                              NotNullPredicate.notNullPredicate());
 

Since:

4.1

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.commons.collections4.collection.PredicatedCollection

PredicatedCollection.Builder<E>

Method Summary

Modifier and Type	Method	Description
E	ceiling(E e)
Iterator<E>	descendingIterator()
NavigableSet<E>	descendingSet()
E	floor(E e)
NavigableSet<E>	headSet(E toElement, boolean inclusive)
E	higher(E e)
E	lower(E e)
E	pollFirst()
E	pollLast()
static <E> PredicatedNavigableSet<E>	predicatedNavigableSet(NavigableSet<E> set, Predicate<? super E> predicate)	Factory method to create a predicated (validating) navigable set.
NavigableSet<E>	subSet(E fromElement, boolean fromInclusive, E toElement, boolean toInclusive)
NavigableSet<E>	tailSet(E fromElement, boolean inclusive)

Methods inherited from class org.apache.commons.collections4.set.PredicatedSortedSet

comparator, first, headSet, last, predicatedSortedSet, subSet, tailSet

Methods inherited from class org.apache.commons.collections4.set.PredicatedSet

equals, hashCode, predicatedSet

Methods inherited from class org.apache.commons.collections4.collection.PredicatedCollection

add, addAll, builder, notNullBuilder, predicatedCollection

Methods inherited from class org.apache.commons.collections4.collection.AbstractCollectionDecorator

clear, contains, containsAll, isEmpty, iterator, remove, removeAll, removeIf, retainAll, size, toArray, toArray, toString

Methods inherited from class java.lang.Object

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.NavigableSet

headSet, iterator, subSet, tailSet

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, size, toArray, toArray

Methods inherited from interface java.util.SortedSet

comparator, first, last, spliterator

Method Detail

predicatedNavigableSet

public static <E> PredicatedNavigableSet<E> predicatedNavigableSet(NavigableSet<E> set,
                                                                   Predicate<? super E> predicate)

Factory method to create a predicated (validating) navigable set.

If there are any elements already in the set being decorated, they are validated.

Type Parameters:

E - the element type

Parameters:

set - the set to decorate, must not be null

predicate - the predicate to use for validation, must not be null

Returns:

a new predicated navigable set.

Throws:

NullPointerException - if set or predicate is null

IllegalArgumentException - if the set contains invalid elements

Since:

4.0

lower

public E lower(E e)

Specified by:

lower in interface NavigableSet<E>

floor

public E floor(E e)

Specified by:

floor in interface NavigableSet<E>

ceiling

public E ceiling(E e)

Specified by:

ceiling in interface NavigableSet<E>

higher

public E higher(E e)

Specified by:

higher in interface NavigableSet<E>

pollFirst

public E pollFirst()

Specified by:

pollFirst in interface NavigableSet<E>

pollLast

public E pollLast()

Specified by:

pollLast in interface NavigableSet<E>

descendingSet

public NavigableSet<E> descendingSet()

Specified by:

descendingSet in interface NavigableSet<E>

descendingIterator

public Iterator<E> descendingIterator()

Specified by:

descendingIterator in interface NavigableSet<E>

subSet

public NavigableSet<E> subSet(E fromElement,
                              boolean fromInclusive,
                              E toElement,
                              boolean toInclusive)

Specified by:

subSet in interface NavigableSet<E>

headSet

public NavigableSet<E> headSet(E toElement,
                               boolean inclusive)

Specified by:

headSet in interface NavigableSet<E>

tailSet

public NavigableSet<E> tailSet(E fromElement,
                               boolean inclusive)

Specified by:

tailSet in interface NavigableSet<E>