Class DoubleSpliterators.AbstractIndexBasedSpliterator
- java.lang.Object
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- it.unimi.dsi.fastutil.doubles.AbstractDoubleSpliterator
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- it.unimi.dsi.fastutil.doubles.DoubleSpliterators.AbstractIndexBasedSpliterator
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- All Implemented Interfaces:
DoubleSpliterator
,java.util.Spliterator<java.lang.Double>
,java.util.Spliterator.OfDouble
,java.util.Spliterator.OfPrimitive<java.lang.Double,java.util.function.DoubleConsumer,java.util.Spliterator.OfDouble>
- Direct Known Subclasses:
DoubleSpliterators.EarlyBindingSizeIndexBasedSpliterator
,DoubleSpliterators.LateBindingSizeIndexBasedSpliterator
- Enclosing class:
- DoubleSpliterators
public abstract static class DoubleSpliterators.AbstractIndexBasedSpliterator extends AbstractDoubleSpliterator
A skeletal implementation for a spliterator backed by an index based data store. High performance concrete implementations (like the main Spliterator of ArrayList) generally should avoid using this and just implement the interface directly, but should be decent for less performance critical implementations.This class is only appropriate for sequences that are at most
Integer.MAX_VALUE
long. If your backing data store can be bigger then this, consider the equivalently named class in the type specificBigSpliterators
class.As the abstract methods in this class are used in inner loops, it is generally a good idea to override the class as
final
as to encourage the JVM to inline them (or alternatively, override the abstract methods as final).
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Nested Class Summary
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Nested classes/interfaces inherited from interface java.util.Spliterator
java.util.Spliterator.OfDouble, java.util.Spliterator.OfInt, java.util.Spliterator.OfLong, java.util.Spliterator.OfPrimitive<T extends java.lang.Object,T_CONS extends java.lang.Object,T_SPLITR extends java.util.Spliterator.OfPrimitive<T,T_CONS,T_SPLITR>>
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
characteristics()
long
estimateSize()
void
forEachRemaining(java.util.function.DoubleConsumer action)
long
skip(long n)
Skips the given number of elements.boolean
tryAdvance(java.util.function.DoubleConsumer action)
DoubleSpliterator
trySplit()
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Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleSpliterator
forEachRemaining, tryAdvance
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Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleSpliterator
forEachRemaining, getComparator, tryAdvance
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Method Detail
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characteristics
public int characteristics()
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estimateSize
public long estimateSize()
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tryAdvance
public boolean tryAdvance(java.util.function.DoubleConsumer action)
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forEachRemaining
public void forEachRemaining(java.util.function.DoubleConsumer action)
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skip
public long skip(long n)
Description copied from interface:DoubleSpliterator
Skips the given number of elements.The effect of this call is exactly the same as that of calling
DoubleSpliterator.tryAdvance(java.util.function.Consumer<? super java.lang.Double>)
forn
times (possibly stopping ifDoubleSpliterator.tryAdvance(java.util.function.Consumer<? super java.lang.Double>)
returns false). The action called will do nothing; elements will be discarded.- Parameters:
n
- the number of elements to skip.- Returns:
- the number of elements actually skipped.
- See Also:
Spliterator.tryAdvance(java.util.function.Consumer<? super T>)
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trySplit
public DoubleSpliterator trySplit()
- Throws:
java.lang.IndexOutOfBoundsException
- if the return ofcomputeSplitPoint()
was< pos
or> {@link #getMaxPos()}
.- Implementation Specification:
- This implementation always returns a prefix of the elements, in order to comply with
the
Spliterator.ORDERED
property. This means this current iterator does not need to to update whatgetMaxPos()
returns in response to this method (but it may do "book-keeping" on it based on binding strategy).The split point is computed by
computeSplitPoint()
; see that method for details.
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