Package it.unimi.dsi.fastutil.objects

Class ObjectIterators.AbstractIndexBasedIterator<K>

java.lang.Object
it.unimi.dsi.fastutil.objects.AbstractObjectIterator<K>
it.unimi.dsi.fastutil.objects.ObjectIterators.AbstractIndexBasedIterator<K>
All Implemented Interfaces:
ObjectIterator<K>, java.util.Iterator<K>
Direct Known Subclasses:
ObjectIterators.AbstractIndexBasedListIterator
Enclosing class:
ObjectIterators
public abstract static class ObjectIterators.AbstractIndexBasedIterator<K>
extends AbstractObjectIterator<K>
A skeletal implementation for an iterator backed by an index-based data store. High performance concrete implementations (like the main Iterator 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 specific BigListIterators 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).

  • Method Summary

    Modifier and Type Method Description
    void forEachRemaining​(java.util.function.Consumer<? super K> action)  
    boolean hasNext()  
    K next()  
    void remove()  
    int skip​(int n)
    Skips the given number of elements.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • hasNext

      public boolean hasNext()

    • next

      public K next()

    • remove

      public void remove()

    • forEachRemaining

      public void forEachRemaining​(java.util.function.Consumer<? super K> action)

    • skip

      public int skip​(int n)
      Description copied from interface: ObjectIterator
      Skips the given number of elements.

      The effect of this call is exactly the same as that of calling Iterator.next() for n times (possibly stopping if Iterator.hasNext() becomes false).

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