cdqa.iterator

Class Null


public final class Null
extends Iterator

the null iterator

Nested Class Summary

Nested classes/interfaces inherited from class cdqa.iterator.Iterator

Iterator.IteratorManager

Field Summary

Fields inherited from class cdqa.iterator.Iterator

NULL, current, initValue

Constructor Summary

Null()

Method Summary

void
postInit()
void
preClose()
XObject
pumpNext()

Methods inherited from class cdqa.iterator.Iterator

aggreg, all, and, asBooleanIterator, close, constant, constant, constant, constant, constant, debugPrint, empty, exist, getCurrent, init, init, join, join, list, ljoin, ljoin, mTOm, map, mapL, mapL, mapL, next, not, or, postInit, preClose, pumpNext, rjoin, rjoin, scan, scan, theFalseIterator, theTrueIterator, toPrintWriter

Constructor Details

Null

public Null()

Method Details

postInit

public void postInit()
Overrides:
postInit in interface Iterator

preClose

public void preClose()
Overrides:
preClose in interface Iterator

pumpNext

public XObject pumpNext()
Overrides:
pumpNext in interface Iterator