zinger.bsheet
Class RangeIterator

java.lang.Object
  zinger.bsheet.RangeIterator

All Implemented Interfaces:

java.util.Iterator

public class RangeIterator
extends java.lang.Object
implements java.util.Iterator

Iterates through cell addresses of a specified rectangle.

Author:

Alexey Zinger (inline_four@yahoo.com)

See Also:

next()

Field Summary

protected int	bottomRow
protected int	col
protected int	leftCol
protected int	rightCol
protected int	row
protected int	topRow

Constructor Summary

RangeIterator(int leftCol, int topRow, int rightCol, int bottomRow)
Constructs an instance ready for iteration of the range specified by its top left and bottom right corners.

Method Summary

boolean	hasNext()
java.lang.Object	next() Advances through the specified rectangular range.
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

leftCol

protected final int leftCol

topRow

protected final int topRow

rightCol

protected final int rightCol

bottomRow

protected final int bottomRow

col

protected int col

row

protected int row

Constructor Detail

RangeIterator

public RangeIterator(int leftCol,
                     int topRow,
                     int rightCol,
                     int bottomRow)

Constructs an instance ready for iteration of the range specified by its top left and bottom right corners.

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator

next

public java.lang.Object next()
                      throws java.util.NoSuchElementException

Advances through the specified rectangular range. Advancements are made left to right and top to bottom.

Specified by:

next in interface java.util.Iterator

Returns:

a Point, whose x property represents a model column index and y property represents a row index

Throws:

java.util.NoSuchElementException - if the end of the range (bottom right corner) has already been reached prior to the call

remove

public void remove()
            throws java.lang.UnsupportedOperationException

Specified by:

remove in interface java.util.Iterator

Throws:

java.lang.UnsupportedOperationException - always