it.unimi.dsi.fastutil.doubles

Class AbstractDoubleIterator

java.lang.Object

it.unimi.dsi.fastutil.doubles.AbstractDoubleIterator

All Implemented Interfaces:

DoubleIterator, Iterator<Double>

Direct Known Subclasses:

AbstractByte2DoubleSortedMap.ValuesIterator, AbstractChar2DoubleSortedMap.ValuesIterator, AbstractDouble2DoubleSortedMap.ValuesIterator, AbstractDoubleBidirectionalIterator, AbstractFloat2DoubleSortedMap.ValuesIterator, AbstractInt2DoubleSortedMap.ValuesIterator, AbstractLong2DoubleSortedMap.ValuesIterator, AbstractObject2DoubleSortedMap.ValuesIterator, AbstractReference2DoubleSortedMap.ValuesIterator, AbstractShort2DoubleSortedMap.ValuesIterator, DoubleIterators.UnmodifiableIterator

public abstract class AbstractDoubleIterator
extends Object
implements DoubleIterator

An abstract class facilitating the creation of type-specific iterators.

To create a type-specific iterator you need both a method returning the next element as primitive type and a method returning the next element as an object. However, if you inherit from this class you need just one (anyone).

This class implements also a trivial version of skip(int) that uses type-specific methods; moreover, remove() will throw an UnsupportedOperationException.

See Also:

Iterator

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractDoubleIterator()

Method Summary

Methods

Modifier and Type	Method and Description
Double	next() Delegates to the corresponding type-specific method.
double	nextDouble() Delegates to the corresponding generic method.
void	remove() This method just throws an UnsupportedOperationException.
int	skip(int n) This method just iterates the type-specific version of next() for at most n times, stopping if Iterator.hasNext() becomes false.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Iterator

hasNext

Constructor Detail

AbstractDoubleIterator

protected AbstractDoubleIterator()

Method Detail

nextDouble

public double nextDouble()

Delegates to the corresponding generic method.

Specified by:

nextDouble in interface DoubleIterator

Returns:

the next element in the iteration.

See Also:

Iterator.next()

next

public Double next()

Delegates to the corresponding type-specific method.

Specified by:

next in interface Iterator<Double>

remove

public void remove()

This method just throws an UnsupportedOperationException.

Specified by:

remove in interface Iterator<Double>

skip

public int skip(int n)

This method just iterates the type-specific version of next() for at most n times, stopping if Iterator.hasNext() becomes false.

Specified by:

skip in interface DoubleIterator

Parameters:

n - the number of elements to skip.

Returns:

the number of elements actually skipped.

See Also:

Iterator.next()