org.xerial.util.bean
Class TreeWalker

java.lang.Object
  org.xerial.util.bean.TreeWalker

Direct Known Subclasses:

ANTLRWalker, JSONStreamWalker, MapWalker, XMLWalker

public abstract class TreeWalker
extends Object

An depth-first walker interface of tree structured data

Author:

leo

Constructor Summary

protected

TreeWalker(TreeVisitor visitor)

Method Summary

abstract TreeNode	getSubTree() Gets the entire subtree beginning from the current node, and skips the descendants.
TreeVisitor	getTreeVisitor()
abstract void	skipDescendants() Skip the descendants of the current node
abstract void	walk() Start walking

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeWalker

protected TreeWalker(TreeVisitor visitor)

Method Detail

getTreeVisitor

public TreeVisitor getTreeVisitor()

walk

public abstract void walk()
                   throws XerialException

Start walking

Throws:

XerialException

skipDescendants

public abstract void skipDescendants()

Skip the descendants of the current node

getSubTree

public abstract TreeNode getSubTree()
                             throws BeanException

Gets the entire subtree beginning from the current node, and skips the descendants.

Returns:

TreeNode representation of the tree structured data beginning from the current node

Throws:

BeanException - TODO