com.mattunderscore.trees.walkers

Class PrettyPrintWalker<T>

java.lang.Object

com.mattunderscore.trees.traversal.DefaultTreeWalker<T>

com.mattunderscore.trees.walkers.PrettyPrintWalker<T>

All Implemented Interfaces:

TreeWalker<T>

public final class PrettyPrintWalker<T>
extends DefaultTreeWalker<T>

Pretty printer for trees. Prints tree in a Lisp-like representation.

Author:

Matt Champion on 31/08/2015

Constructor Summary

Constructors

Constructor and Description
PrettyPrintWalker(OutputStream stream)

Method Summary

Modifier and Type	Method and Description
void	onCompleted() Called at the end of the iteration.
void	onNode(Object node) Called on visiting a node.
void	onNodeChildrenCompleted(Object node) Called after all child nodes (and their children) have been visited and before the next sibling node is visited.
void	onNodeChildrenRemaining(Object node) Called after a child node (and its children) have been visited and before the next child node is visited.
void	onNodeChildrenStarted(Object node) Called before the first child of a node is visited.
void	onStarted() Called on the start of the iteration.

Methods inherited from class com.mattunderscore.trees.traversal.DefaultTreeWalker

onNodeNoChildren

Methods inherited from class java.lang.Object

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

Constructor Detail

PrettyPrintWalker

public PrettyPrintWalker(OutputStream stream)

Method Detail

onStarted

public void onStarted()

Description copied from interface: TreeWalker

Called on the start of the iteration.

Specified by:

onStarted in interface TreeWalker<T>

Overrides:

onStarted in class DefaultTreeWalker<T>

onNode

public void onNode(Object node)

Description copied from interface: TreeWalker

Called on visiting a node.

Specified by:

onNode in interface TreeWalker<T>

Overrides:

onNode in class DefaultTreeWalker<T>

Parameters:

node - The node

onNodeChildrenStarted

public void onNodeChildrenStarted(Object node)

Description copied from interface: TreeWalker

Called before the first child of a node is visited.

Specified by:

onNodeChildrenStarted in interface TreeWalker<T>

Overrides:

onNodeChildrenStarted in class DefaultTreeWalker<T>

Parameters:

node - The node

onNodeChildrenRemaining

public void onNodeChildrenRemaining(Object node)

Description copied from interface: TreeWalker

Called after a child node (and its children) have been visited and before the next child node is visited.

Specified by:

onNodeChildrenRemaining in interface TreeWalker<T>

Overrides:

onNodeChildrenRemaining in class DefaultTreeWalker<T>

Parameters:

node - The parent node

onNodeChildrenCompleted

public void onNodeChildrenCompleted(Object node)

Description copied from interface: TreeWalker

Called after all child nodes (and their children) have been visited and before the next sibling node is visited.

Specified by:

onNodeChildrenCompleted in interface TreeWalker<T>

Overrides:

onNodeChildrenCompleted in class DefaultTreeWalker<T>

Parameters:

node - The node

onCompleted

public void onCompleted()

Description copied from interface: TreeWalker

Called at the end of the iteration.

Specified by:

onCompleted in interface TreeWalker<T>

Overrides:

onCompleted in class DefaultTreeWalker<T>