de.lmu.ifi.dbs.elki.utilities.datastructures.hierarchy

Class FilteredIter<O>

java.lang.Object

de.lmu.ifi.dbs.elki.utilities.datastructures.hierarchy.FilteredIter<O>

Type Parameters:

O - Object type

All Implemented Interfaces:

Hierarchy.Iter<O>, Iter

public class FilteredIter<O>
extends Object
implements Hierarchy.Iter<O>

Filtered iterator.

Since:

0.7.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Object	current Current object, if valid.
(package private) Class<? super O>	filter Class filter.
private Hierarchy.Iter<?>	it Iterator in primary hierarchy.

Constructor Summary

Constructors

Constructor and Description
FilteredIter(Hierarchy.Iter<?> it, Class<? super O> clazz) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
FilteredIter<O>	advance() Moves the iterator forward to the next entry.
O	get() Access the current object.
private void	next() Java iterator style, because we need to "peek" the next element.
boolean	valid() Returns true if the iterator currently points to a valid object.

Methods inherited from class java.lang.Object

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

Field Detail

filter

Class<? super O> filter

Class filter.

current

Object current

Current object, if valid.

it

private Hierarchy.Iter<?> it

Iterator in primary hierarchy.

Constructor Detail

FilteredIter

public FilteredIter(Hierarchy.Iter<?> it,
            Class<? super O> clazz)

Constructor.

Parameters:

it - Iterator in primary hierarchy

clazz - Class filter

Method Detail

get

public O get()

Description copied from interface: Hierarchy.Iter

Access the current object.

Specified by:

get in interface Hierarchy.Iter<O>

Returns:

Current object

valid

public boolean valid()

Description copied from interface: Iter

Returns true if the iterator currently points to a valid object.

Specified by:

valid in interface Iter

Returns:

a boolean value, whether the position is valid.

advance

public FilteredIter<O> advance()

Description copied from interface: Iter

Moves the iterator forward to the next entry.

Specified by:

advance in interface Hierarchy.Iter<O>

Specified by:

advance in interface Iter

Returns:

The iterator itself.

next

private void next()

Java iterator style, because we need to "peek" the next element.