org.tigris.scarab.util
Class WindowIterator

java.lang.Object
  org.tigris.scarab.util.WindowIterator

All Implemented Interfaces:

java.util.Iterator

Direct Known Subclasses:

EmptyWindowIterator

public class WindowIterator

extends java.lang.Object

implements java.util.Iterator

Field Summary

static WindowIterator	EMPTY
(package private) boolean	firstCall

Constructor Summary

WindowIterator(java.util.Iterator i, int backSize, int forwardSize)

Method Summary

java.lang.Object	get(int i) Allows retrieving a given element some distance relative to the element last returned from next().
boolean	hasNext()
boolean	hasValue(int i)
java.lang.Object	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final WindowIterator EMPTY

firstCall

boolean firstCall

Constructor Detail

WindowIterator

public WindowIterator(java.util.Iterator i,
                      int backSize,
                      int forwardSize)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator

next

public java.lang.Object next()

Specified by:

next in interface java.util.Iterator

remove

public void remove()

Specified by:

remove in interface java.util.Iterator

get

public java.lang.Object get(int i)

Allows retrieving a given element some distance relative to the element last returned from next().

hasValue

public boolean hasValue(int i)