it.unimi.dsi.fastutil.objects
Class AbstractObjectBidirectionalIterator<K>
java.lang.Object
it.unimi.dsi.fastutil.objects.AbstractObjectIterator<K>
it.unimi.dsi.fastutil.objects.AbstractObjectBidirectionalIterator<K>
- All Implemented Interfaces:
- BidirectionalIterator<K>, ObjectBidirectionalIterator<K>, ObjectIterator<K>, Iterator<K>
- Direct Known Subclasses:
- AbstractObjectListIterator, ObjectIterators.UnmodifiableBidirectionalIterator
public abstract class AbstractObjectBidirectionalIterator<K>
- extends AbstractObjectIterator<K>
- implements ObjectBidirectionalIterator<K>
An abstract class facilitating the creation of type-specific bidirectional iterators.
To create a type-specific bidirectional iterator, besides what is needed
for an iterator you need both a method returning the previous element as
primitive type and a method returning the previous element as an
object. However, if you inherit from this class you need just one (anyone).
This class implements also a trivial version of back(int)
that
uses type-specific methods.
back
public int back(int n)
- This method just iterates the type-specific version of
BidirectionalIterator.previous()
for
at most n
times, stopping if BidirectionalIterator.hasPrevious()
becomes false.
- Specified by:
back
in interface ObjectBidirectionalIterator<K>
- Parameters:
n
- the number of elements to skip back.
- Returns:
- the number of elements actually skipped.
- See Also:
Iterator.next()