com.mattunderscore.trees.traversal

Class DefaultWalker<E>

java.lang.Object

com.mattunderscore.trees.traversal.DefaultWalker<E>

All Implemented Interfaces:

Walker<E>

Direct Known Subclasses:

DefaultNodeWalker, DoubleSummingWalker, IntegerSummingWalker, LongSummingWalker

public abstract class DefaultWalker<E>
extends Object
implements Walker<E>

Default walker implementation that can be extended.

Author:

Matt Champion on 13/09/14.

Constructor Summary

Constructors

Constructor and Description
DefaultWalker()

Method Summary

Modifier and Type	Method and Description
void	onCompleted() Invoked after all others have been invoked.
void	onEmpty() Invoked if the collection is empty.
boolean	onNext(E element) Invoked for each element.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultWalker

public DefaultWalker()

Method Detail

onEmpty

public void onEmpty()

Description copied from interface: Walker

Invoked if the collection is empty.

Specified by:

onEmpty in interface Walker<E>

onNext

public boolean onNext(E element)

Description copied from interface: Walker

Invoked for each element.

Specified by:

onNext in interface Walker<E>

Parameters:

element - The element

Returns:

true if the walker should continue to the next element

onCompleted

public void onCompleted()

Description copied from interface: Walker

Invoked after all others have been invoked. Not invoked if false is returned from onNext.

Specified by:

onCompleted in interface Walker<E>