xxl.visual
Class VisualPeekIterator

java.lang.Object
  |
  +--xxl.visual.VisualIterator
        |
        +--xxl.visual.VisualPeekIterator

Direct Known Subclasses:

VisualCursor

public class VisualPeekIterator

extends VisualIterator

This class extends xxl.visual.VisualIterator with the peek()-functionality.

Inner classes inherited from class xxl.visual.VisualIterator

VisualIterator.IteratorFunction

Fields inherited from class xxl.visual.VisualIterator

children, inputOf, iterator, newIterator, parameters

Constructor Summary

VisualPeekIterator(VisualIterator.IteratorFunction newPeekIterator)

Method Summary

java.lang.Object	peek() Shows the next element in the iteration without removing it.
boolean	supportsPeek() Returns true if the peek operation is supported by this PeekIterator.

Methods inherited from class xxl.visual.VisualIterator

addInput, getParameters, hasNext, next, open, remove, removeInput, setParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

VisualPeekIterator

public VisualPeekIterator(VisualIterator.IteratorFunction newPeekIterator)

Method Detail

peek

public java.lang.Object peek()
                      throws java.util.NoSuchElementException,
                             java.lang.UnsupportedOperationException

Shows the next element in the iteration without removing it.

Returns:

the next element in the iteration

Throws:

java.util.NoSuchElementException - iteration has no more elements.

java.lang.UnsupportedOperationException - if the peek operation is not supported by this PeekIterator.

supportsPeek

public boolean supportsPeek()

Returns true if the peek operation is supported by this PeekIterator.

Returns:

true if the peek operation is supported by this PeekIterator