edu.umd.cfar.lamp.viper.util
Class AbstractCircularIterator

java.lang.Object
  edu.umd.cfar.lamp.viper.util.AbstractCircularIterator

All Implemented Interfaces:

CircularIterator, java.util.Iterator, java.util.ListIterator

public abstract class AbstractCircularIterator

extends java.lang.Object

implements CircularIterator

An abstract iterator that does not have an end, instead returning to the beginning. This class implements the empty circular iterator, and throws UnsupportedOperationExceptions when the change methods are invoked.

Constructor Summary

AbstractCircularIterator()

Method Summary

void	add(java.lang.Object o) Adds the value between current and next; unimplemented.
boolean	hasNext() Tests to see if there is another element.
boolean	hasPrevious() Tests to see if there is another element.
void	remove() Removes the current element; unimplemented.
void	set(java.lang.Object o) Sets the current element; unimplemented.

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.umd.cfar.lamp.viper.util.CircularIterator

current, isEmpty

Methods inherited from interface java.util.ListIterator

next, nextIndex, previous, previousIndex

Constructor Detail

AbstractCircularIterator

public AbstractCircularIterator()

Method Detail

hasNext

public boolean hasNext()

Tests to see if there is another element.

Specified by:

hasNext in interface java.util.ListIterator

Returns:

true

hasPrevious

public boolean hasPrevious()

Tests to see if there is another element.

Specified by:

hasPrevious in interface java.util.ListIterator

Returns:

true

remove

public void remove()

Removes the current element; unimplemented.

Specified by:

remove in interface java.util.ListIterator

Throws:

java.lang.UnsupportedOperationException

set

public void set(java.lang.Object o)

Sets the current element; unimplemented.

Specified by:

set in interface java.util.ListIterator

Parameters:

o - the value to set to current

Throws:

java.lang.UnsupportedOperationException

add

public void add(java.lang.Object o)

Adds the value between current and next; unimplemented.

Specified by:

add in interface java.util.ListIterator

Parameters:

o - the value to add.

Throws:

java.lang.UnsupportedOperationException