org.revapi.query

Class DFSFilteringIterator<E extends Element>

java.lang.Object

org.revapi.query.DFSFilteringIterator<E>

All Implemented Interfaces:

Iterator<E>

public class DFSFilteringIterator<E extends Element>
extends Object
implements Iterator<E>

Recursively walks an element forest in a depth-first manner leaving out elements not matching the optionally provided filter.

Since:

0.1

Author:

Lukas Krejci

Constructor Summary

Constructors

Constructor and Description
DFSFilteringIterator(Iterator<? extends Element> rootIterator, Class<? extends E> resultClass, Filter<? super E> filter) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
E	next()
void	remove()

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

Constructor Detail

DFSFilteringIterator

public DFSFilteringIterator(@Nonnull
                            Iterator<? extends Element> rootIterator,
                            @Nonnull
                            Class<? extends E> resultClass,
                            @Nullable
                            Filter<? super E> filter)

Constructor.

Parameters:

rootIterator - the iterator over the root elements of the forest

resultClass - the class of the elements to look for in the forest. All the returned elements will be assignable to this class.

filter - optional filter that further filters out unwanted elements.

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<E extends Element>

next

public E next()

Specified by:

next in interface Iterator<E extends Element>

remove

public void remove()

Specified by:

remove in interface Iterator<E extends Element>

Throws:

UnsupportedOperationException - This is not supported.