Package se.liu.ida.hefquin.base.data.utils

Class JoiningIteratorForSolMaps

java.lang.Object

se.liu.ida.hefquin.base.data.utils.JoiningIteratorForSolMaps

All Implemented Interfaces:

Iterator<SolutionMapping>

public class JoiningIteratorForSolMaps
extends Object
implements Iterator<SolutionMapping>

This iterator enumerates the result of joining two collections of solution mappings. The current implementation of this iterator performs a nested loops join. If you need the join result materialized, use SolutionMappingUtils.nestedLoopJoin(Iterable, Iterable) instead.

Field Summary

Fields

Modifier and Type	Field	Description
protected SolutionMapping	currentInputElement
protected final Iterable<SolutionMapping>	input2
protected Iterator<SolutionMapping>	it1
protected Iterator<SolutionMapping>	it2
protected SolutionMapping	nextOutputElement

Constructor Summary

Constructors

Constructor	Description
JoiningIteratorForSolMaps(Iterable<SolutionMapping> input1, Iterable<SolutionMapping> input2)
JoiningIteratorForSolMaps(Iterator<SolutionMapping> input1, Iterable<SolutionMapping> input2)

Method Summary

Modifier and Type	Method	Description
static WrappingIterable<SolutionMapping>	createAsIterable(Iterable<SolutionMapping> input1, Iterable<SolutionMapping> input2)
static WrappingIteratorFactory<SolutionMapping>	getFactory(Iterable<SolutionMapping> input2)
boolean	hasNext()
SolutionMapping	next()

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, remove

Field Details

input2

protected final Iterable<SolutionMapping> input2

it1

protected Iterator<SolutionMapping> it1

it2

protected Iterator<SolutionMapping> it2

currentInputElement

protected SolutionMapping currentInputElement

nextOutputElement

protected SolutionMapping nextOutputElement

Constructor Details

JoiningIteratorForSolMaps

public JoiningIteratorForSolMaps(Iterator<SolutionMapping> input1,
 Iterable<SolutionMapping> input2)

JoiningIteratorForSolMaps

public JoiningIteratorForSolMaps(Iterable<SolutionMapping> input1,
 Iterable<SolutionMapping> input2)

Method Details

createAsIterable

public static WrappingIterable<SolutionMapping> createAsIterable(Iterable<SolutionMapping> input1,
 Iterable<SolutionMapping> input2)

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<SolutionMapping>

next

public SolutionMapping next()

Specified by:

next in interface Iterator<SolutionMapping>

getFactory

public static WrappingIteratorFactory<SolutionMapping> getFactory(Iterable<SolutionMapping> input2)