org.apache.tapestry5.tree

Interface TreeNode<T>

Type Parameters:

T - type of node

public interface TreeNode<T>

A node within a TreeModel. In a DefaultTreeModel, most of the node's information comes via the TreeModelAdapter.

Since:

5.3

Method Summary

Modifier and Type	Method and Description
java.util.List<TreeNode<T>>	getChildren() Returns the actual children of this non-leaf node, as additional nodes.
boolean	getHasChildren() Returns true if this non-leaf node has child nodes.
java.lang.String	getId() Returns a string Id for the node that uniquely identifies it.
java.lang.String	getLabel() Returns a textual label for the node.
T	getValue() Returns the value represented by this node.
boolean	isLeaf() If true, then this node is a leaf node, which never has children (i.e., a file).

Method Detail

getId

java.lang.String getId()

Returns a string Id for the node that uniquely identifies it.

Returns:

unique string identifying the node

See Also:

TreeModel.getById(String)

getValue

T getValue()

Returns the value represented by this node.

isLeaf

boolean isLeaf()

If true, then this node is a leaf node, which never has children (i.e., a file). If false, the node may have children (i.e., a folder).

Returns:

true for leaf nodes, false for folder nodes

See Also:

TreeModelAdapter.isLeaf(Object)

getHasChildren

boolean getHasChildren()

Returns true if this non-leaf node has child nodes. This will not be invoked for leaf nodes.

See Also:

TreeModelAdapter.hasChildren(Object)

getChildren

java.util.List<TreeNode<T>> getChildren()

Returns the actual children of this non-leaf node, as additional nodes.

See Also:

TreeModelAdapter.getChildren(Object)

getLabel

java.lang.String getLabel()

Returns a textual label for the node. Not all UIs will make use of the label, but default UIs will.

See Also:

TreeModelAdapter.getLabel(Object)