org.apache.tapestry5.tree

## Interface TreeSelectionModel<T>

- Type Parameters:
    `T` - type of node
  All Known Implementing Classes:
    DefaultTreeSelectionModel

      public interface TreeSelectionModel<T>

  Tracks which leaf nodes of a `TreeModel` are currently selected. The default implementation simply stores a set of unique node ids to identify selected nodes. The selection model is updated whenever the user clicks on the label for a leaf node. In the future, new methods may be added that will support selection of folders as well as leafs, and define the rules for how selections and de-selections propagate down to children or up to parents.
  Since:
    5.3
  See Also:
    `Tree`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `clear()` Clears the selection.
    `boolean` | `isSelected(TreeNode<T> node)` Returns `true`, if the given node is selected.
    `void` | `select(TreeNode<T> node)` Selects a node.
    `void` | `unselect(TreeNode<T> node)` Unselects a node.

- - ### Method Detail

    - #### isSelected

          boolean isSelected(TreeNode<T> node)

      Returns `true`, if the given node is selected.
      Parameters:
        `node` - node to check

    - #### select

          void select(TreeNode<T> node)

      Selects a node.
      Parameters:
        `node` - node to select

    - #### unselect

          void unselect(TreeNode<T> node)

      Unselects a node.
      Parameters:
        `node` - node to unselect

    - #### clear

          void clear()

      Clears the selection.

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