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
 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.
 String getId()
          Returns a string Id for the node that uniquely identifies it.
 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

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

List<TreeNode<T>> getChildren()
Returns the actual children of this non-leaf node, as additional nodes.

See Also:
TreeModelAdapter.getChildren(Object)

getLabel

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)


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