@Beta protected class ForwardingNavigableSet.StandardDescendingSet extends ForwardingNavigableSet<E>
NavigableSet.descendingSet() in terms of the other methods
of NavigableSet, notably including NavigableSet.descendingIterator().
In many cases, you may wish to override ForwardingNavigableSet.descendingSet() to
forward to this implementation or a subclass thereof.
ForwardingNavigableSet.StandardDescendingSet| Constructor and Description |
|---|
StandardDescendingSet()
Constructor for use by subclasses.
|
| Modifier and Type | Method and Description |
|---|---|
E |
ceiling(E e)
Returns the least element in this set greater than or equal to
the given element, or
null if there is no such element. |
Comparator<? super E> |
comparator()
Returns the comparator used to order the elements in this set,
or null if this set uses the natural ordering of its elements.
|
protected NavigableSet<E> |
delegate()
Returns the backing delegate instance that methods are forwarded to.
|
Iterator<E> |
descendingIterator()
Returns an iterator over the elements in this set, in descending order.
|
NavigableSet<E> |
descendingSet()
Returns a reverse order view of the elements contained in this set.
|
E |
first()
Returns the first (lowest) element currently in this set.
|
E |
floor(E e)
Returns the greatest element in this set less than or equal to
the given element, or
null if there is no such element. |
SortedSet<E> |
headSet(E toElement)
Returns a view of the portion of this set whose elements are
strictly less than toElement.
|
NavigableSet<E> |
headSet(E toElement,
boolean inclusive)
Returns a view of the portion of this set whose elements are less than
(or equal to, if
inclusive is true) toElement. |
E |
higher(E e)
Returns the least element in this set strictly greater than the
given element, or
null if there is no such element. |
Iterator<E> |
iterator()
Returns an iterator over the elements in this collection.
|
E |
last()
Returns the last (highest) element currently in this set.
|
E |
lower(E e)
Returns the greatest element in this set strictly less than the
given element, or
null if there is no such element. |
E |
pollFirst()
Retrieves and removes the first (lowest) element,
or returns
null if this set is empty. |
E |
pollLast()
Retrieves and removes the last (highest) element,
or returns
null if this set is empty. |
NavigableSet<E> |
subSet(E fromElement,
boolean fromInclusive,
E toElement,
boolean toInclusive)
Returns a view of the portion of this set whose elements range from
fromElement to toElement. |
SortedSet<E> |
subSet(E fromElement,
E toElement)
Returns a view of the portion of this set whose elements range
from fromElement, inclusive, to toElement,
exclusive.
|
SortedSet<E> |
tailSet(E fromElement)
Returns a view of the portion of this set whose elements are
greater than or equal to fromElement.
|
NavigableSet<E> |
tailSet(E fromElement,
boolean inclusive)
Returns a view of the portion of this set whose elements are greater
than (or equal to, if
inclusive is true) fromElement. |
Object[] |
toArray()
Returns an array containing all of the elements in this collection.
|
<T> T[] |
toArray(T[] array)
Returns an array containing all of the elements in this collection;
the runtime type of the returned array is that of the specified array.
|
String |
toString()
Returns the string representation generated by the delegate's
toString method. |
standardCeiling, standardFirst, standardFloor, standardHeadSet, standardHigher, standardLast, standardLower, standardPollFirst, standardPollLast, standardSubSet, standardSubSet, standardTailSetstandardContains, standardRemoveequals, hashCode, standardEquals, standardHashCode, standardRemoveAlladd, addAll, clear, contains, containsAll, isEmpty, remove, removeAll, retainAll, size, standardAddAll, standardClear, standardContainsAll, standardIsEmpty, standardRetainAll, standardToArray, standardToArray, standardToStringclone, finalize, getClass, notify, notifyAll, wait, wait, waitspliteratoradd, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, sizeparallelStream, removeIf, streampublic StandardDescendingSet()
protected NavigableSet<E> delegate()
ForwardingObjectForwardingSet.delegate(). Concrete subclasses override this method to supply the
instance being decorated.delegate in class ForwardingNavigableSet<E>public E lower(E e)
java.util.NavigableSetnull if there is no such element.lower in interface NavigableSet<E>lower in class ForwardingNavigableSet<E>e - the value to matche,
or null if there is no such elementpublic E floor(E e)
java.util.NavigableSetnull if there is no such element.floor in interface NavigableSet<E>floor in class ForwardingNavigableSet<E>e - the value to matche,
or null if there is no such elementpublic E ceiling(E e)
java.util.NavigableSetnull if there is no such element.ceiling in interface NavigableSet<E>ceiling in class ForwardingNavigableSet<E>e - the value to matche,
or null if there is no such elementpublic E higher(E e)
java.util.NavigableSetnull if there is no such element.higher in interface NavigableSet<E>higher in class ForwardingNavigableSet<E>e - the value to matche,
or null if there is no such elementpublic E pollFirst()
java.util.NavigableSetnull if this set is empty.pollFirst in interface NavigableSet<E>pollFirst in class ForwardingNavigableSet<E>null if this set is emptypublic E pollLast()
java.util.NavigableSetnull if this set is empty.pollLast in interface NavigableSet<E>pollLast in class ForwardingNavigableSet<E>null if this set is emptypublic NavigableSet<E> descendingSet()
java.util.NavigableSetremove operation), the results of
the iteration are undefined.
The returned set has an ordering equivalent to
Collections.reverseOrder(comparator()).
The expression s.descendingSet().descendingSet() returns a
view of s essentially equivalent to s.
descendingSet in interface NavigableSet<E>descendingSet in class ForwardingNavigableSet<E>public Iterator<E> descendingIterator()
java.util.NavigableSetdescendingSet().iterator().descendingIterator in interface NavigableSet<E>descendingIterator in class ForwardingNavigableSet<E>public NavigableSet<E> subSet(E fromElement, boolean fromInclusive, E toElement, boolean toInclusive)
java.util.NavigableSetfromElement to toElement. If fromElement and
toElement are equal, the returned set is empty unless fromInclusive and toInclusive are both true. The returned set
is backed by this set, so changes in the returned set are reflected in
this set, and vice-versa. The returned set supports all optional set
operations that this set supports.
The returned set will throw an IllegalArgumentException
on an attempt to insert an element outside its range.
subSet in interface NavigableSet<E>subSet in class ForwardingNavigableSet<E>fromElement - low endpoint of the returned setfromInclusive - true if the low endpoint
is to be included in the returned viewtoElement - high endpoint of the returned settoInclusive - true if the high endpoint
is to be included in the returned viewfromElement, inclusive, to toElement, exclusivepublic SortedSet<E> subSet(E fromElement, E toElement)
java.util.SortedSetThe returned set will throw an IllegalArgumentException on an attempt to insert an element outside its range.
subSet in interface NavigableSet<E>subSet in interface SortedSet<E>subSet in class ForwardingSortedSet<E>fromElement - low endpoint (inclusive) of the returned settoElement - high endpoint (exclusive) of the returned setpublic NavigableSet<E> headSet(E toElement, boolean inclusive)
java.util.NavigableSetinclusive is true) toElement. The
returned set is backed by this set, so changes in the returned set are
reflected in this set, and vice-versa. The returned set supports all
optional set operations that this set supports.
The returned set will throw an IllegalArgumentException
on an attempt to insert an element outside its range.
headSet in interface NavigableSet<E>headSet in class ForwardingNavigableSet<E>toElement - high endpoint of the returned setinclusive - true if the high endpoint
is to be included in the returned viewinclusive is true) toElementpublic SortedSet<E> headSet(E toElement)
java.util.SortedSetThe returned set will throw an IllegalArgumentException on an attempt to insert an element outside its range.
headSet in interface NavigableSet<E>headSet in interface SortedSet<E>headSet in class ForwardingSortedSet<E>toElement - high endpoint (exclusive) of the returned setpublic NavigableSet<E> tailSet(E fromElement, boolean inclusive)
java.util.NavigableSetinclusive is true) fromElement.
The returned set is backed by this set, so changes in the returned set
are reflected in this set, and vice-versa. The returned set supports
all optional set operations that this set supports.
The returned set will throw an IllegalArgumentException
on an attempt to insert an element outside its range.
tailSet in interface NavigableSet<E>tailSet in class ForwardingNavigableSet<E>fromElement - low endpoint of the returned setinclusive - true if the low endpoint
is to be included in the returned viewfromElementpublic SortedSet<E> tailSet(E fromElement)
java.util.SortedSetThe returned set will throw an IllegalArgumentException on an attempt to insert an element outside its range.
tailSet in interface NavigableSet<E>tailSet in interface SortedSet<E>tailSet in class ForwardingSortedSet<E>fromElement - low endpoint (inclusive) of the returned setpublic Comparator<? super E> comparator()
java.util.SortedSetcomparator in interface SortedSet<E>comparator in class ForwardingSortedSet<E>public E first()
java.util.SortedSetfirst in interface SortedSet<E>first in class ForwardingSortedSet<E>public E last()
java.util.SortedSetlast in interface SortedSet<E>last in class ForwardingSortedSet<E>public Iterator<E> iterator()
java.util.Collectioniterator in interface Iterable<E>iterator in interface Collection<E>iterator in interface NavigableSet<E>iterator in interface Set<E>iterator in class ForwardingCollection<E>public Object[] toArray()
java.util.CollectionThe returned array will be "safe" in that no references to it are maintained by this collection. (In other words, this method must allocate a new array even if this collection is backed by an array). The caller is thus free to modify the returned array.
This method acts as bridge between array-based and collection-based APIs.
toArray in interface Collection<E>toArray in interface Set<E>toArray in class ForwardingCollection<E>public <T> T[] toArray(T[] array)
java.util.CollectionIf this collection fits in the specified array with room to spare (i.e., the array has more elements than this collection), the element in the array immediately following the end of the collection is set to null. (This is useful in determining the length of this collection only if the caller knows that this collection does not contain any null elements.)
If this collection makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.
Like the Collection.toArray() method, this method acts as bridge between
array-based and collection-based APIs. Further, this method allows
precise control over the runtime type of the output array, and may,
under certain circumstances, be used to save allocation costs.
Suppose x is a collection known to contain only strings. The following code can be used to dump the collection into a newly allocated array of String:
String[] y = x.toArray(new String[0]);
Note that toArray(new Object[0]) is identical in function to
toArray().toArray in interface Collection<E>toArray in interface Set<E>toArray in class ForwardingCollection<E>T - the runtime type of the array to contain the collectionarray - the array into which the elements of this collection are to be
stored, if it is big enough; otherwise, a new array of the same
runtime type is allocated for this purpose.public String toString()
ForwardingObjecttoString method.toString in class ForwardingObjectCopyright © 2010–2020. All rights reserved.