org.eigenbase.runtime
Class ResultSetIterator

java.lang.Object
  org.eigenbase.runtime.ResultSetIterator

All Implemented Interfaces:

Iterator, RestartableIterator

public class ResultSetIterator
extends Object
implements RestartableIterator

A ResultSetIterator is an adapter which converts a ResultSet to a Iterator.

NOTE jvs 21-Mar-2006: This class is no longer used except by Saffron, but is generally useful. Should probably be moved to a utility package.

Field Summary

private boolean	endOfStream
protected ResultSet	resultSet
private Object	row

Constructor Summary

ResultSetIterator(ResultSet resultSet)

Method Summary

boolean	hasNext()
protected Object	makeRow() Creates an object representing the current row of the result set.
private void	moveToNext()
Object	next()
void	remove()
void	restart() Restarts this iterator, so that a subsequent call to next() returns the first element in the collection being iterated.

Methods inherited from class java.lang.Object

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

Field Detail

resultSet

protected ResultSet resultSet

row

private Object row

endOfStream

private boolean endOfStream

Constructor Detail

ResultSetIterator

public ResultSetIterator(ResultSet resultSet)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator

next

public Object next()

Specified by:

next in interface Iterator

remove

public void remove()

Specified by:

remove in interface Iterator

restart

public void restart()

Description copied from interface: RestartableIterator

Restarts this iterator, so that a subsequent call to next() returns the first element in the collection being iterated.

Specified by:

restart in interface RestartableIterator

makeRow

protected Object makeRow()
                  throws SQLException

Creates an object representing the current row of the result set. The default implementation of this method returns a Row, but derived classes may override this.

Throws:

SQLException

moveToNext

private void moveToNext()