jimm.datavision.source
Class ColumnIterator

java.lang.Object
  jimm.datavision.source.ColumnIterator

All Implemented Interfaces:

java.util.Iterator

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

An iterator over the columns in a list of tables. Not used by all data sources.

Field Summary

(package private) java.util.Iterator	colIter
(package private) java.lang.Object	nextCol
(package private) Table	table
(package private) java.util.Iterator	tableIter

Constructor Summary

ColumnIterator(java.util.Iterator tableIter)
Constructor.

Method Summary

protected void	findNext() Sets col to the next available column.
boolean	hasNext()
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

tableIter

java.util.Iterator tableIter

table

Table table

colIter

java.util.Iterator colIter

nextCol

java.lang.Object nextCol

Constructor Detail

ColumnIterator

public ColumnIterator(java.util.Iterator tableIter)

Constructor.

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator

next

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

Specified by:

next in interface java.util.Iterator

Throws:

java.util.NoSuchElementException

remove

public void remove()
            throws java.lang.UnsupportedOperationException

Specified by:

remove in interface java.util.Iterator

Throws:

java.lang.UnsupportedOperationException

findNext

protected void findNext()

Sets col to the next available column. If there is none, col will be set to null.