cdqa.iterator
Class BooleanIterator

java.lang.Object
  cdqa.iterator.Iterator
      cdqa.iterator.BooleanIterator

Direct Known Subclasses:

BinaryOpBooleanIterator, False, Not, True, UnaryOpBooleanIterator

public abstract class BooleanIterator
extends Iterator

BoleanIterator based on Iterator class

Author:

simonkm

Nested Class Summary

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

Iterator.IteratorManager

Field Summary

Fields inherited from class cdqa.iterator.Iterator

current, initValue, NULL

Constructor Summary

BooleanIterator()

Method Summary

BooleanIterator	asBooleanIterator() returns itself
abstract boolean	getValue()
void	postInit() does nothing
void	preClose() does nothing
XObject	pumpNext() closes the iterator and checks value

Methods inherited from class cdqa.iterator.Iterator

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

Methods inherited from class java.lang.Object

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

Constructor Detail

BooleanIterator

public BooleanIterator()

Method Detail

getValue

public abstract boolean getValue()

asBooleanIterator

public BooleanIterator asBooleanIterator()

returns itself

Overrides:

asBooleanIterator in class Iterator

postInit

public void postInit()

does nothing

Specified by:

postInit in class Iterator

preClose

public void preClose()

does nothing

Specified by:

preClose in class Iterator

pumpNext

public final XObject pumpNext()

closes the iterator and checks value

Specified by:

pumpNext in class Iterator

Returns:

XBoolean.TRUE or XBoolean.false