xapi.collect.impl.EmptyIterator Maven / Gradle / Ivy

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package xapi.collect.impl;

import java.util.Iterator;

public class EmptyIterator  implements Iterator, Iterable{

  private EmptyIterator() {}
  
  @SuppressWarnings("rawtypes")
  private static final EmptyIterator EMPTY_ITERATOR = new EmptyIterator();
  
  @SuppressWarnings("unchecked")
  public static  Iterator getEmptyIterator() {
    return EMPTY_ITERATOR;
  }

  @SuppressWarnings("unchecked")
  public static  Iterable getEmptyIterable() {
    return EMPTY_ITERATOR;
  }
  
  @Override
  public boolean hasNext() {
    return false;
  }
  
  @Override
  public Iterator iterator() {
    return this;
  }

  @Override
  public E next() {
    throw new UnsupportedOperationException();
  }

  @Override
  public void remove() {
    throw new UnsupportedOperationException();
  }

}