ca.uqac.dim.turtledb

Class RelationCacheIterator

java.lang.Object

ca.uqac.dim.turtledb.RelationCacheIterator

All Implemented Interfaces:

RelationIterator, java.util.Iterator<Tuple>

Direct Known Subclasses:

BinaryRelation.BinaryRelationCacheIterator, Join.JoinCacheIterator, NAryRelation.NAryRelationCacheIterator, Selection.SelectionCacheIterator, Table.TableCacheIterator, UnaryRelation.UnaryRelationCacheIterator, Union.UnionCacheIterator

public abstract class RelationCacheIterator
extends java.lang.Object
implements RelationIterator

Field Summary

Fields

Modifier and Type	Field and Description
protected Table	m_intermediateResult

Constructor Summary

Constructors

Constructor and Description
RelationCacheIterator()

Method Summary

Modifier and Type	Method and Description
protected abstract void	getIntermediateResult()
boolean	hasNext()
protected void	initialize()
Tuple	next()
void	remove()
void	reset()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

m_intermediateResult

protected Table m_intermediateResult

Constructor Detail

RelationCacheIterator

public RelationCacheIterator()

Method Detail

hasNext

public final boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<Tuple>

next

public final Tuple next()

Specified by:

next in interface java.util.Iterator<Tuple>

initialize

protected final void initialize()

reset

public void reset()

Specified by:

reset in interface RelationIterator

remove

public final void remove()

Specified by:

remove in interface java.util.Iterator<Tuple>

getIntermediateResult

protected abstract void getIntermediateResult()