Package org.apache.commons.collections4.set

Class TransformedNavigableSet<E>

java.lang.Object

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

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

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

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

org.apache.commons.collections4.set.TransformedNavigableSet<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 TransformedNavigableSet<E>
extends TransformedSortedSet<E>
implements NavigableSet<E>

Decorates another NavigableSet to transform objects that are added.

The add methods are affected by this class. Thus objects must be removed or searched for using their transformed form. For example, if the transformation converts Strings to Integers, you must use the Integer form to remove objects.

Since:

4.1

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.apache.commons.collections4.collection.TransformedCollection

transformer

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TransformedNavigableSet(NavigableSet<E> set, Transformer<? super E,? extends E> transformer)	Constructor that wraps (not copies).

Method Summary

Modifier and Type	Method	Description
E	ceiling(E e)
protected NavigableSet<E>	decorated()	Gets the decorated navigable set.
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()
NavigableSet<E>	subSet(E fromElement, boolean fromInclusive, E toElement, boolean toInclusive)
NavigableSet<E>	tailSet(E fromElement, boolean inclusive)
static <E> TransformedNavigableSet<E>	transformedNavigableSet(NavigableSet<E> set, Transformer<? super E,? extends E> transformer)	Factory method to create a transforming navigable set that will transform existing contents of the specified navigable set.
static <E> TransformedNavigableSet<E>	transformingNavigableSet(NavigableSet<E> set, Transformer<? super E,? extends E> transformer)	Factory method to create a transforming navigable set.

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

comparator, first, getSortedSet, headSet, last, subSet, tailSet, transformedSortedSet, transformingSortedSet

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

equals, hashCode, transformedSet, transformingSet

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

add, addAll, transform, transform, transformedCollection, transformingCollection

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

clear, contains, containsAll, isEmpty, iterator, remove, removeAll, removeIf, retainAll, setCollection, size, 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

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

Constructor Details

TransformedNavigableSet

protected TransformedNavigableSet(NavigableSet<E> set,
 Transformer<? super E,? extends E> transformer)

Constructor that wraps (not copies).

If there are any elements already in the set being decorated, they are NOT transformed.

Parameters:

set - the set to decorate, must not be null

transformer - the transformer to use for conversion, must not be null

Throws:

NullPointerException - if set or transformer is null

Method Details

transformedNavigableSet

public static <E> TransformedNavigableSet<E> transformedNavigableSet(NavigableSet<E> set,
 Transformer<? super E,? extends E> transformer)

Factory method to create a transforming navigable set that will transform existing contents of the specified navigable set.

If there are any elements already in the set being decorated, they will be transformed by this method. Contrast this with transformingNavigableSet(NavigableSet, Transformer).

Type Parameters:

E - the element type

Parameters:

set - the set to decorate, must not be null

transformer - the transformer to use for conversion, must not be null

Returns:

a new transformed NavigableSet

Throws:

NullPointerException - if set or transformer is null

transformingNavigableSet

public static <E> TransformedNavigableSet<E> transformingNavigableSet(NavigableSet<E> set,
 Transformer<? super E,? extends E> transformer)

Factory method to create a transforming navigable set.

If there are any elements already in the set being decorated, they are NOT transformed. Contrast this with transformedNavigableSet(NavigableSet, Transformer).

Type Parameters:

E - the element type

Parameters:

set - the set to decorate, must not be null

transformer - the transformer to use for conversion, must not be null

Returns:

a new transformed NavigableSet

Throws:

NullPointerException - if set or transformer is null

ceiling

public E ceiling(E e)

Specified by:

ceiling in interface NavigableSet<E>

decorated

protected NavigableSet<E> decorated()

Gets the decorated navigable set.

Overrides:

decorated in class AbstractCollectionDecorator<E>

Returns:

the decorated navigable set

descendingIterator

public Iterator<E> descendingIterator()

Specified by:

descendingIterator in interface NavigableSet<E>

descendingSet

public NavigableSet<E> descendingSet()

Specified by:

descendingSet in interface NavigableSet<E>

floor

public E floor(E e)

Specified by:

floor in interface NavigableSet<E>

headSet

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

Specified by:

headSet in interface NavigableSet<E>

higher

public E higher(E e)

Specified by:

higher in interface NavigableSet<E>

lower

public E lower(E e)

Specified by:

lower 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>

subSet

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

Specified by:

subSet in interface NavigableSet<E>

tailSet

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

Specified by:

tailSet in interface NavigableSet<E>