Package net.vleo.timel.iterator

Class NestedLoopTimeIterator<S,D>

java.lang.Object

net.vleo.timel.iterator.NestedLoopTimeIterator<S,D>

Type Parameters:

S - Source value Java type

D - Target value Java type

All Implemented Interfaces:

TimeIterator<D>

Direct Known Subclasses:

NestedLoopUpscalableIterator

public abstract class NestedLoopTimeIterator<S,D>
extends Object
implements TimeIterator<D>

A nested loop iterator which allows, for each iteration of a given TimeIterator, to loop over a nested iterator.

Author:

Andrea Leofreddi

Field Summary

Fields

Modifier and Type	Field	Description
protected TimeIterator<S>	iterator
protected TimeIterator<D>	nestedIterator

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	NestedLoopTimeIterator(TimeIterator<S> iterator)	Protected constructor.

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()	Test if there is a next element.
protected abstract TimeIterator<D>	nestedIterator(Sample<S> value)
Sample<D>	next()	Move forward the iterator and return the next value.
Sample<D>	peekNext()	Peek the next element without moving forward the iterator.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

iterator

protected final TimeIterator<S> iterator

nestedIterator

protected TimeIterator<D> nestedIterator

Constructor Detail

NestedLoopTimeIterator

protected NestedLoopTimeIterator(TimeIterator<S> iterator)

Protected constructor.

Parameters:

iterator - Source iterator

Method Detail

nestedIterator

protected abstract TimeIterator<D> nestedIterator(Sample<S> value)

next

public final Sample<D> next()
                     throws NoSuchElementException

Description copied from interface: TimeIterator

Move forward the iterator and return the next value.

Specified by:

next in interface TimeIterator<S>

Returns:

The next sample

Throws:

NoSuchElementException - If there is no next element

peekNext

public final Sample<D> peekNext()
                         throws NoSuchElementException

Description copied from interface: TimeIterator

Peek the next element without moving forward the iterator.

Specified by:

peekNext in interface TimeIterator<S>

Returns:

The next sample

Throws:

NoSuchElementException - If there is no next element

hasNext

public final boolean hasNext()

Description copied from interface: TimeIterator

Test if there is a next element.

Specified by:

hasNext in interface TimeIterator<S>

Returns:

True iff there is a next element

toString

public String toString()

Overrides:

toString in class Object