TreeModel (Tapestry API - 5.7.0)

Type Parameters:

T - type of data in the tree

All Known Implementing Classes:

DefaultTreeModel
```
public interface TreeModel<T>
```
A model for tree-oriented data used by the Tree component. The default implemention, DefaultTreeModel uses a ValueEncoder and a TreeModelAdapter to supply the underlying information.

Since:

5.3

See Also:

TreeSelectionModel

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`TreeNode<T>`	`find(T element)`	Recursively searches from the root nodes to find the tree node that matches the provided element.
`TreeNode<T>`	`getById(String id)`	Locates a node in the tree by its unique id.
`List<TreeNode<T>>`	`getRootNodes()`	Returns the node or nodes that are the top level of the tree.

- Method Detail
  - getRootNodes
```
List<TreeNode<T>> getRootNodes()
```
    Returns the node or nodes that are the top level of the tree.
  - getById
```
TreeNode<T> getById(String id)
```
    Locates a node in the tree by its unique id.
    
    Throws:
    
    IllegalArgumentException - if no such node exists
    
    See Also:
    
    TreeNode.getId()
  - find
```
TreeNode<T> find(T element)
```
    Recursively searches from the root nodes to find the tree node that matches the provided element.
    
    Parameters:
    
    element - to search for
    
    Returns:
    
    matching node, or null if not found