Java compact1, compact2, compact3 java.util Interface Spliterator.OfLong（JDK8）

Method Detail

• trySplit

  Spliterator.OfLong trySplit()

  Description copied from interface: Spliterator
  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 Spliterator.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 to estimateSize() for this and the returned Spliterator; and
  • if this Spliterator is SUBSIZED, then estimateSize() for this spliterator before splitting must be equal to the sum of estimateSize() 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.

  Specified by:

  trySplit in interface Spliterator<Long>

  Specified by:

  trySplit in interface Spliterator.OfPrimitive<Long,LongConsumer,Spliterator.OfLong>

  Returns:

  a Spliterator covering some portion of the elements, or null if this spliterator cannot be split

• tryAdvance

  boolean tryAdvance(LongConsumer action)

  Description copied from interface: Spliterator.OfPrimitive
  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.

  Specified by:

  tryAdvance in interface Spliterator.OfPrimitive<Long,LongConsumer,Spliterator.OfLong>

  Parameters:

  action - The action

  Returns:

  false if no remaining elements existed upon entry to this method, else true.

• forEachRemaining

  default void forEachRemaining(LongConsumer action)

  Description copied from interface: Spliterator.OfPrimitive
  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.

  Specified by:

  forEachRemaining in interface Spliterator.OfPrimitive<Long,LongConsumer,Spliterator.OfLong>

  Parameters:

  action - The action

• tryAdvance

  default boolean tryAdvance(Consumer<? super Long> 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.

  Specified by:

  tryAdvance in interface Spliterator<Long>

  Implementation Requirements:

  If the action is an instance of LongConsumer then it is cast to LongConsumer and passed to tryAdvance(java.util.function.LongConsumer); otherwise the action is adapted to an instance of LongConsumer, by boxing the argument of LongConsumer, and then passed to tryAdvance(java.util.function.LongConsumer).

  Parameters:

  action - The action

  Returns:

  false if no remaining elements existed upon entry to this method, else true.

• forEachRemaining

  default void forEachRemaining(Consumer<? super Long> 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.

  Specified by:

  forEachRemaining in interface Spliterator<Long>

  Implementation Requirements:

  If the action is an instance of LongConsumer then it is cast to LongConsumer and passed to forEachRemaining(java.util.function.LongConsumer); otherwise the action is adapted to an instance of LongConsumer, by boxing the argument of LongConsumer, and then passed to forEachRemaining(java.util.function.LongConsumer).

  Parameters:

  action - The action