it.unimi.dsi.fastutil.longs
Class AbstractLongIterator

java.lang.Object
  extended byit.unimi.dsi.fastutil.longs.AbstractLongIterator
All Implemented Interfaces:
Iterator, LongIterator
Direct Known Subclasses:
AbstractLongBidirectionalIterator, LongIterators.UnmodifiableIterator

public abstract class AbstractLongIterator
extends Object
implements LongIterator

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

Method Summary
 Object next()
          Delegates to the corresponding type-specific method.
 long nextLong()
          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
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.util.Iterator
hasNext
 

Method Detail

nextLong

public long nextLong()
Delegates to the corresponding generic method.

Specified by:
nextLong in interface LongIterator
Returns:
the next element from the collection.
See Also:
Iterator.next()

next

public Object next()
Delegates to the corresponding type-specific method.

Specified by:
next in interface Iterator

remove

public void remove()
This method just throws an UnsupportedOperationException.

Specified by:
remove in interface Iterator

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 LongIterator
Parameters:
n - the number of elements to skip.
Returns:
the number of elements actually skipped.
See Also:
Iterator.next()