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## com.gwtext.client.data
Class Tree

    java.lang.Object
      com.gwtext.client.core.JsObject
          com.gwtext.client.data.Tree

    public class Tree

extends JsObject

Represents a tree data structure and bubbles all the events for its nodes. The nodes in the tree have most standard DOM functionality.

Field Summary

Fields inherited from class com.gwtext.client.core.JsObject
`jsObj`

Constructor Summary
`Tree()` Create a new Tree instance.

Method Summary
`void` | `addNodeListener(TreeListener listener)` Add a Tree listener.
`Node` | `getNodeById(java.lang.String id)` Gets a node in this tree by its id.
`Node` | `getRootNode()` Returns the root node.
`void` | `setRootNode(Node node)` Set the root node.

Methods inherited from class com.gwtext.client.core.JsObject
`getJsObj, getProperties, isCreated, setJsObj`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Tree

    public Tree()

  Create a new Tree instance.

Method Detail

### getNodeById

    public Node getNodeById(java.lang.String id)

  Gets a node in this tree by its id.

  Parameters:
    `id` - the mode ID
  Returns:
    the node, or null if not found

### getRootNode

    public Node getRootNode()

  Returns the root node.

  Returns:
    the root node

### setRootNode

    public void setRootNode(Node node)

  Set the root node.

  Parameters:
    `node` - the root node

### addNodeListener

    public void addNodeListener(TreeListener listener)

  Add a Tree listener.

  Parameters:
    `listener` - the listener

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