Spliterator.OfPrimitive
public
static
interface
Spliterator.OfPrimitive
implements
Spliterator<T>
java.util.Spliterator.OfPrimitive<T, T_CONS, T_SPLITR extends java.util.Spliterator.OfPrimitive<T, T_CONS, T_SPLITR>> |
A Spliterator specialized for primitive values.
Summary
Inherited constants |
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Public methods | |
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default
void
|
forEachRemaining(T_CONS action)
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. |
abstract
boolean
|
tryAdvance(T_CONS action)
If a remaining element exists, performs the given action on it,
returning |
abstract
T_SPLITR
|
trySplit()
If this spliterator can be partitioned, returns a Spliterator covering elements, that will, upon return from this method, not be covered by this Spliterator. |
Inherited methods | |
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Public methods
forEachRemaining
public void forEachRemaining (T_CONS action)
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 Spliterator.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.
Implementation Requirements:
- The default implementation repeatedly invokes
tryAdvance(T_CONS)
until it returnsfalse
. It should be overridden whenever possible.
Parameters | |
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action |
T_CONS : The action |
Throws | |
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NullPointerException |
if the specified action is null |
tryAdvance
public abstract boolean tryAdvance (T_CONS action)
If a remaining element exists, performs the given action on it,
returning true
; else returns false
. If this
Spliterator is Spliterator.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 | |
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action |
T_CONS : The action |
Returns | |
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boolean |
false if no remaining elements existed
upon entry to this method, else true . |
Throws | |
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NullPointerException |
if the specified action is null |
trySplit
public abstract T_SPLITR trySplit ()
If this spliterator can be partitioned, returns a Spliterator covering elements, that will, upon return from this method, not be covered by this Spliterator.
If this Spliterator is ORDERED
, the returned Spliterator
must cover a strict prefix of the elements.
Unless this Spliterator covers an infinite number of elements,
repeated calls to trySplit()
must eventually return null
.
Upon non-null return:
- the value reported for
estimateSize()
before splitting, must, after splitting, be greater than or equal toestimateSize()
for this and the returned Spliterator; and - if this Spliterator is
SUBSIZED
, thenestimateSize()
for this spliterator before splitting must be equal to the sum ofestimateSize()
for this and the returned Spliterator after splitting.
This method may return null
for any reason,
including emptiness, inability to split after traversal has
commenced, data structure constraints, and efficiency
considerations.
Returns | |
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T_SPLITR |
a Spliterator covering some portion of the
elements, or null if this spliterator cannot be split |