com.tonbeller.wcf.tree
Class SimpleOptimizingTreeModelDecorator

java.lang.Object
  com.tonbeller.wcf.tree.TreeModelDecorator
      com.tonbeller.wcf.tree.SimpleOptimizingTreeModelDecorator

All Implemented Interfaces:

DecoratedTreeModel, TreeModel

public class SimpleOptimizingTreeModelDecorator

extends TreeModelDecorator

If the root of the tree consists of a single node and all the user can do with that node is expand it, then the root is replaced with its contents.

Author:

av

Field Summary

Fields inherited from interface com.tonbeller.wcf.tree.TreeModel

EMPTY_MODEL

Constructor Summary

SimpleOptimizingTreeModelDecorator(NodeFilter filter, TreeModel decoree)
creates a reduced view on a tree model that uses a HashMap for implementation

Method Summary

java.lang.Object	getParent(java.lang.Object node)
java.lang.Object[]	getRoots() returns the root members of the tree.

Methods inherited from class com.tonbeller.wcf.tree.TreeModelDecorator

addTreeModelChangeListener, fireModelChanged, getChildren, getDecoree, hasChildren, removeTreeModelChangeListener, setDecoree

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleOptimizingTreeModelDecorator

public SimpleOptimizingTreeModelDecorator(NodeFilter filter,
                                          TreeModel decoree)

creates a reduced view on a tree model that uses a HashMap for implementation

Parameters:

filter - accepted nodes are considered "significant"

Method Detail

getRoots

public java.lang.Object[] getRoots()

Description copied from interface: TreeModel

returns the root members of the tree.

Specified by:

getRoots in interface TreeModel

Overrides:

getRoots in class TreeModelDecorator

getParent

public java.lang.Object getParent(java.lang.Object node)

Specified by:

getParent in interface TreeModel

Overrides:

getParent in class TreeModelDecorator