org.htmlparser.parserapplications.filterbuilder
Class HtmlTreeModel

java.lang.Object
  org.htmlparser.parserapplications.filterbuilder.HtmlTreeModel

All Implemented Interfaces:

TreeModel

public class HtmlTreeModel
extends Object
implements TreeModel

Quick and dirty tree model for HTML nodes.

Field Summary

protected Node	mRoot The root Node.
protected Vector	mTreeListeners The list of tree listeners.

Constructor Summary

HtmlTreeModel(NodeList root)
Create an HTML tree view.

Method Summary

void	addTreeModelListener(TreeModelListener l) Adds a listener for the TreeModelEvent posted after the tree changes.
Object	getChild(Object parent, int index) Returns the child of parent at index index in the parent's child array.
int	getChildCount(Object parent) Returns the number of children of parent.
int	getIndexOfChild(Object parent, Object child) Returns the index of child in parent.
Object	getRoot() Returns the root of the tree.
boolean	isLeaf(Object node) Returns true if node is a leaf.
void	removeTreeModelListener(TreeModelListener l) Removes a listener previously added with addTreeModelListener().
void	valueForPathChanged(TreePath path, Object newValue) Messaged when the user has altered the value for the item identified by path to newValue.

Methods inherited from class java.lang.Object

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

Field Detail

mTreeListeners

protected Vector mTreeListeners

The list of tree listeners.

mRoot

protected Node mRoot

The root Node.

Constructor Detail

HtmlTreeModel

public HtmlTreeModel(NodeList root)

Create an HTML tree view.

Parameters:

root - The nodes at the root of the tree (the nodes are wrapped in an Html node that is never seen because it's the root, but this makes all downstream processing super-simple because every tree node is then a Node, not sometimes a NodeList at the root).

Method Detail

addTreeModelListener

public void addTreeModelListener(TreeModelListener l)

Adds a listener for the TreeModelEvent posted after the tree changes.

Specified by:

addTreeModelListener in interface TreeModel

Parameters:

l -

removeTreeModelListener

public void removeTreeModelListener(TreeModelListener l)

Removes a listener previously added with addTreeModelListener().

Specified by:

removeTreeModelListener in interface TreeModel

Parameters:

l -

getChild

public Object getChild(Object parent,
                       int index)

Returns the child of parent at index index in the parent's child array.

Specified by:

getChild in interface TreeModel

Parameters:

parent -

index -

Returns:

getChildCount

public int getChildCount(Object parent)

Returns the number of children of parent.

Specified by:

getChildCount in interface TreeModel

Parameters:

parent -

Returns:

getIndexOfChild

public int getIndexOfChild(Object parent,
                           Object child)

Returns the index of child in parent.

Specified by:

getIndexOfChild in interface TreeModel

Parameters:

parent -

child -

Returns:

getRoot

public Object getRoot()

Returns the root of the tree.

Specified by:

getRoot in interface TreeModel

Returns:

isLeaf

public boolean isLeaf(Object node)

Returns true if node is a leaf.

Specified by:

isLeaf in interface TreeModel

Parameters:

node -

Returns:

valueForPathChanged

public void valueForPathChanged(TreePath path,
                                Object newValue)

Messaged when the user has altered the value for the item identified by path to newValue.

Specified by:

valueForPathChanged in interface TreeModel

Parameters:

path -

newValue -