net.sf.saffron.runtime
Class CalcIterator

java.lang.Object
  |
  +--net.sf.saffron.runtime.CalcIterator

All Implemented Interfaces:

Iterator

public abstract class CalcIterator

extends Object

implements Iterator

CalcIterator is an abstract base for iterator implementations generated by IterCalcRel.

Field Summary

protected Iterator	inputIterator
protected Object	nextRow

Constructor Summary

protected

CalcIterator(Iterator inputIterator) Constructor.

Method Summary

protected abstract Object	calcNext() Method to be implemented by subclasses to calculate next row.
boolean	hasNext()
Object	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

inputIterator

protected Iterator inputIterator

nextRow

protected Object nextRow

Constructor Detail

CalcIterator

protected CalcIterator(Iterator inputIterator)

Constructor.

Parameters:

inputIterator - iterator producing results to be transformed

Method Detail

next

public Object next()

Specified by:

next in interface Iterator

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator

remove

public void remove()

Specified by:

remove in interface Iterator

calcNext

protected abstract Object calcNext()

Method to be implemented by subclasses to calculate next row.

Returns:

row or null if no more