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

  Adds a listener for the TreeModelEvent posted after the tree changes.
Parameters:
- l - the listener to add
See Also: DefaultTreeModel.removeTreeModelListener(javax.swing.event.TreeModelListener),

  Tells how leaf nodes are determined.

  Tells how leaf nodes are determined.
Returns: true if only nodes which do not allow children are leaf nodes, false if nodes which have no children (even if allowed) are leaf nodes
See Also: DefaultTreeModel.asksAllowsChildren,

  Notifies all listeners that have registered interest for notification on this event type.

  Notifies all listeners that have registered interest for
notification on this event type. The event instance
is lazily created using the parameters passed into
the fire method.
Parameters:
- source - the node being changed
- path - the path to the root node
- childIndices - the indices of the changed elements
- children - the changed elements
See Also: EventListenerList,

  Notifies all listeners that have registered interest for notification on this event type.

  Notifies all listeners that have registered interest for
notification on this event type. The event instance
is lazily created using the parameters passed into
the fire method.
Parameters:
- source - the node where new elements are being inserted
- path - the path to the root node
- childIndices - the indices of the new elements
- children - the new elements
See Also: EventListenerList,

  Notifies all listeners that have registered interest for notification on this event type.

  Notifies all listeners that have registered interest for
notification on this event type. The event instance
is lazily created using the parameters passed into
the fire method.
Parameters:
- source - the node where elements are being removed
- path - the path to the root node
- childIndices - the indices of the removed elements
- children - the removed elements
See Also: EventListenerList,

  Notifies all listeners that have registered interest for notification on this event type.

  Notifies all listeners that have registered interest for
notification on this event type. The event instance
is lazily created using the parameters passed into
the fire method.
Parameters:
- source - the node where the tree model has changed
- path - the path to the root node
- childIndices - the indices of the affected elements
- children - the affected elements
See Also: EventListenerList,

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

  Returns the child of parent at index index in the parent's
child array. parent must be a node previously obtained from
this data source. This should not return null if index
is a valid index for parent (that is index >= 0 &&
index < getChildCount(parent)).
Returns: the child of parent at index index
Parameters:
- parent - a node in the tree, obtained from this data source

  Returns the number of children of parent.

  Returns the number of children of parent. Returns 0 if the node
is a leaf or if it has no children. parent must be a node
previously obtained from this data source.
Returns: the number of children of the node parent
Parameters:
- parent - a node in the tree, obtained from this data source

  Returns the index of child in parent.

  Returns the index of child in parent.
If either the parent or child is null, returns -1.
Returns: the index of the child in the parent, or -1 if either the parent or the child is null
Parameters:
- parent - a note in the tree, obtained from this data source
- child - the node we are interested in

  Returns an array of all the objects currently registered as FooListeners upon this model.

  Returns an array of all the objects currently registered as FooListeners upon this model. FooListeners are registered using the addFooListener method.

You can specify the listenerType argument with a class literal, such as FooListener.class. For example, you can query a DefaultTreeModel m for its tree model listeners with the following code:

TreeModelListener[] tmls = (TreeModelListener[])(m.getListeners(TreeModelListener.class));

If no such listeners exist, this method returns an empty array.
Returns: an array of all objects registered as FooListeners on this component, or an empty array if no such listeners have been added
Parameters:
- listenerType - the type of listeners requested; this parameter should specify an interface that descends from java.util.EventListener
Throws:
- ClassCastException - if listenerType doesn't specify a class or interface that implements java.util.EventListener
Since: 1.3
See Also: DefaultTreeModel.getTreeModelListeners(),

  Builds the parents of node up to and including the root node, where the original node is the last element in the returned array.

  Builds the parents of node up to and including the root node,
where the original node is the last element in the returned array.
The length of the returned array gives the node's depth in the
tree.
Parameters:
- aNode - the TreeNode to get the path for

  Builds the parents of node up to and including the root node, where the original node is the last element in the returned array.

  Builds the parents of node up to and including the root node,
where the original node is the last element in the returned array.
The length of the returned array gives the node's depth in the
tree.
Returns: an array of TreeNodes giving the path from the root to the specified node
Parameters:
- aNode - the TreeNode to get the path for
- depth - an int giving the number of steps already taken towards the root (on recursive calls), used to size the returned array

  Returns the root of the tree.

  Returns the root of the tree. Returns null only if the tree has
no nodes.
Returns: the root of the tree

  Returns an array of all the tree model listeners registered on this model.

  Returns an array of all the tree model listeners
registered on this model.
Returns: all of this model's TreeModelListeners or an empty array if no tree model listeners are currently registered
Since: 1.4
See Also: DefaultTreeModel.addTreeModelListener(javax.swing.event.TreeModelListener), DefaultTreeModel.removeTreeModelListener(javax.swing.event.TreeModelListener),

  Invoked this to insert newChild at location index in parents children.

  Invoked this to insert newChild at location index in parents children.
This will then message nodesWereInserted to create the appropriate
event. This is the preferred way to add children as it will create
the appropriate event.

  Returns whether the specified node is a leaf node.

  Returns whether the specified node is a leaf node.
The way the test is performed depends on the
askAllowsChildren setting.
Returns: true if the node is a leaf node
Parameters:
- node - the node to check
See Also: DefaultTreeModel.asksAllowsChildren, TreeModel.isLeaf(java.lang.Object),

Invoke this method after you've changed how node is to be represented in the tree.

Invoke this method after you've changed how the children identified by childIndicies are to be represented in the tree.

  Invoke this method if you've totally changed the children of node and its childrens children...

  Invoke this method if you've totally changed the children of
node and its childrens children... This will post a
treeStructureChanged event.

  Invoke this method after you've inserted some TreeNodes into node.

  Invoke this method after you've inserted some TreeNodes into
node. childIndices should be the index of the new elements and
must be sorted in ascending order.

  Invoke this method after you've removed some TreeNodes from node.

  Invoke this method after you've removed some TreeNodes from
node. childIndices should be the index of the removed elements and
must be sorted in ascending order. And removedChildren should be
the array of the children objects that were removed.

  Invoke this method if you've modified the TreeNodes upon which this model depends.

  Invoke this method if you've modified the TreeNodes upon which
this model depends. The model will notify all of its listeners that the
model has changed.

  Invoke this method if you've modified the TreeNodes upon which this model depends.

  Invoke this method if you've modified the TreeNodes upon which
this model depends. The model will notify all of its listeners that the
model has changed below the given node.
Parameters:
- node - the node below which the model has changed

  Message this to remove node from its parent.

  Message this to remove node from its parent. This will message
nodesWereRemoved to create the appropriate event. This is the
preferred way to remove a node as it handles the event creation
for you.

  Removes a listener previously added with addTreeModelListener().

  Removes a listener previously added with addTreeModelListener().
Parameters:
- l - the listener to remove
See Also: DefaultTreeModel.addTreeModelListener(javax.swing.event.TreeModelListener),

  Sets whether or not to test leafness by asking getAllowsChildren() or isLeaf() to the TreeNodes.

  Sets whether or not to test leafness by asking getAllowsChildren()
or isLeaf() to the TreeNodes. If newvalue is true, getAllowsChildren()
is messaged, otherwise isLeaf() is messaged.

  Sets the root to root.

  Sets the root to root. A null root implies
the tree is to display nothing, and is legal.

  This sets the user object of the TreeNode identified by path and posts a node changed.

  This sets the user object of the TreeNode identified by path
and posts a node changed. If you use custom user objects in
the TreeModel you're going to need to subclass this and
set the user object of the changed node to something meaningful.