OfPrimitive
interface OfPrimitive<T : Any!, T_CONS : Any!, T_SPLITR : Spliterator.OfPrimitive<T, T_CONS, T_SPLITR>!> : Spliterator<T>
Known Indirect Subclasses
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A Spliterator specialized for primitive values.
Summary
| Inherited constants |
From class Spliterator
Int |
CONCURRENT
Characteristic value signifying that the element source may be safely concurrently modified (allowing additions, replacements, and/or removals) by multiple threads without external synchronization. If so, the Spliterator is expected to have a documented policy concerning the impact of modifications during traversal.
A top-level Spliterator should not report both CONCURRENT and SIZED, since the finite size, if known, may change if the source is concurrently modified during traversal. Such a Spliterator is inconsistent and no guarantees can be made about any computation using that Spliterator. Sub-spliterators may report SIZED if the sub-split size is known and additions or removals to the source are not reflected when traversing.
A top-level Spliterator should not report both CONCURRENT and IMMUTABLE, since they are mutually exclusive. Such a Spliterator is inconsistent and no guarantees can be made about any computation using that Spliterator. Sub-spliterators may report IMMUTABLE if additions or removals to the source are not reflected when traversing.
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Int |
DISTINCT
Characteristic value signifying that, for each pair of encountered elements x, y, !x.equals(y). This applies for example, to a Spliterator based on a Set.
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Int |
IMMUTABLE
Characteristic value signifying that the element source cannot be structurally modified; that is, elements cannot be added, replaced, or removed, so such changes cannot occur during traversal. A Spliterator that does not report IMMUTABLE or CONCURRENT is expected to have a documented policy (for example throwing ConcurrentModificationException) concerning structural interference detected during traversal.
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Int |
NONNULL
Characteristic value signifying that the source guarantees that encountered elements will not be null. (This applies, for example, to most concurrent collections, queues, and maps.)
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Int |
ORDERED
Characteristic value signifying that an encounter order is defined for elements. If so, this Spliterator guarantees that method trySplit splits a strict prefix of elements, that method tryAdvance steps by one element in prefix order, and that forEachRemaining performs actions in encounter order.
A Collection has an encounter order if the corresponding Collection.iterator documents an order. If so, the encounter order is the same as the documented order. Otherwise, a collection does not have an encounter order.
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Int |
SIZED
Characteristic value signifying that the value returned from estimateSize() prior to traversal or splitting represents a finite size that, in the absence of structural source modification, represents an exact count of the number of elements that would be encountered by a complete traversal.
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Int |
SORTED
Characteristic value signifying that encounter order follows a defined sort order. If so, method getComparator() returns the associated Comparator, or null if all elements are Comparable and are sorted by their natural ordering.
A Spliterator that reports SORTED must also report ORDERED.
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Int |
SUBSIZED
Characteristic value signifying that all Spliterators resulting from trySplit() will be both SIZED and SUBSIZED. (This means that all child Spliterators, whether direct or indirect, will be SIZED.)
A Spliterator that does not report SIZED as required by SUBSIZED is inconsistent and no guarantees can be made about any computation using that Spliterator.
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| Public methods |
| open Unit |
Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
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| abstract Boolean |
If a remaining element exists, performs the given action on it, returning true; else returns false.
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| abstract T_SPLITR |
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| Inherited functions |
From class Spliterator
Int |
characteristics()
Returns a set of characteristics of this Spliterator and its elements. The result is represented as ORed values from ORDERED, DISTINCT, SORTED, SIZED, NONNULL, IMMUTABLE, CONCURRENT, SUBSIZED. Repeated calls to characteristics() on a given spliterator, prior to or in-between calls to trySplit, should always return the same result.
If a Spliterator reports an inconsistent set of characteristics (either those returned from a single invocation or across multiple invocations), no guarantees can be made about any computation using this Spliterator.
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Long |
estimateSize()
Returns an estimate of the number of elements that would be encountered by a forEachRemaining traversal, or returns java.lang.Long#MAX_VALUE if infinite, unknown, or too expensive to compute.
If this Spliterator is SIZED and has not yet been partially traversed or split, or this Spliterator is SUBSIZED and has not yet been partially traversed, this estimate must be an accurate count of elements that would be encountered by a complete traversal. Otherwise, this estimate may be arbitrarily inaccurate, but must decrease as specified across invocations of trySplit.
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Unit |
forEachRemaining(action: Consumer<in T>!)
Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception. If this Spliterator is ORDERED, actions are performed in encounter order. Exceptions thrown by the action are relayed to the caller.
Subsequent behavior of a spliterator is unspecified if the action throws an exception.
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Comparator<in T>! |
getComparator()
If this Spliterator's source is SORTED by a Comparator, returns that Comparator. If the source is SORTED in natural order, returns null. Otherwise, if the source is not SORTED, throws IllegalStateException.
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Long |
getExactSizeIfKnown()
Convenience method that returns estimateSize() if this Spliterator is SIZED, else -1.
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Boolean |
hasCharacteristics(characteristics: Int)
Returns true if this Spliterator's characteristics contain all of the given characteristics.
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Boolean |
tryAdvance(action: Consumer<in T>!)
If a remaining element exists: performs the given action on it, returning true; else returns false. If this Spliterator is ORDERED the action is performed on the next element in encounter order. Exceptions thrown by the action are relayed to the caller.
Subsequent behavior of a spliterator is unspecified if the action throws an exception.
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Public methods
forEachRemaining
open fun forEachRemaining(action: T_CONS): Unit
Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception. If this Spliterator is ORDERED, actions are performed in encounter order. Exceptions thrown by the action are relayed to the caller.
Subsequent behavior of a spliterator is unspecified if the action throws an exception.
| Parameters |
action |
T_CONS: The action |
| Exceptions |
java.lang.NullPointerException |
if the specified action is null |
tryAdvance
abstract fun tryAdvance(action: T_CONS): Boolean
If a remaining element exists, performs the given action on it, returning true; else returns false. If this Spliterator is ORDERED the action is performed on the next element in encounter order. Exceptions thrown by the action are relayed to the caller.
Subsequent behavior of a spliterator is unspecified if the action throws an exception.
| Parameters |
action |
T_CONS: The action |
| Return |
Boolean |
false if no remaining elements existed upon entry to this method, else true. |
| Exceptions |
java.lang.NullPointerException |
if the specified action is null |
trySplit
abstract fun trySplit(): T_SPLITR
| Return |
T_SPLITR |
a Spliterator covering some portion of the elements, or null if this spliterator cannot be split |
