Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class JTree.TreeModelHandler - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档
|
JavaTM 2 Platform Standard Edition |
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
javax.swing
Class JTree.TreeModelHandler
java.lang.Object | +--javax.swing.JTree.TreeModelHandler
- Enclosing class:
- JTree
- protected class JTree.TreeModelHandler
- extends Object
- implements TreeModelListener
- extends Object
Listens to the model and updates the expandedState accordingly when nodes are removed, or changed.
| Constructor Summary | |
protected |
JTree.TreeModelHandler()
|
| Method Summary | |
void |
treeNodesChanged(TreeModelEvent e)
Invoked after a node (or a set of siblings) has changed in some way. |
void |
treeNodesInserted(TreeModelEvent e)
Invoked after nodes have been inserted into the tree. |
void |
treeNodesRemoved(TreeModelEvent e)
Invoked after nodes have been removed from the tree. |
void |
treeStructureChanged(TreeModelEvent e)
Invoked after the tree has drastically changed structure from a given node down. |
| Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
| Constructor Detail |
JTree.TreeModelHandler
protected JTree.TreeModelHandler()
| Method Detail |
treeNodesChanged
public void treeNodesChanged(TreeModelEvent e)
- Description copied from interface: TreeModelListener
Invoked after a node (or a set of siblings) has changed in some way. The node(s) have not changed locations in the tree or altered their children arrays, but other attributes have changed and may affect presentation. Example: the name of a file has changed, but it is in the same location in the file system.
To indicate the root has changed, childIndices and children will be null.
e.path() returns the path the parent of the changed node(s).
e.childIndices() returns the index(es) of the changed node(s).
- Specified by:
- treeNodesChanged in interface TreeModelListener
treeNodesInserted
public void treeNodesInserted(TreeModelEvent e)
- Description copied from interface: TreeModelListener
Invoked after nodes have been inserted into the tree.
e.path() returns the parent of the new nodes
e.childIndices() returns the indices of the new nodes in ascending order.
- Specified by:
- treeNodesInserted in interface TreeModelListener
treeStructureChanged
public void treeStructureChanged(TreeModelEvent e)
- Description copied from interface: TreeModelListener
Invoked after the tree has drastically changed structure from a given node down. If the path returned by e.getPath() is of length one and the first element does not identify the current root node the first element should become the new root of the tree.
e.path() holds the path to the node.
e.childIndices() returns null.
- Specified by:
- treeStructureChanged in interface TreeModelListener
treeNodesRemoved
public void treeNodesRemoved(TreeModelEvent e)
- Description copied from interface: TreeModelListener
Invoked after nodes have been removed from the tree. Note that if a subtree is removed from the tree, this method may only be invoked once for the root of the removed subtree, not once for each individual set of siblings removed.
e.path() returns the former parent of the deleted nodes.
e.childIndices() returns the indices the nodes had before they were deleted in ascending order.
- Specified by:
- treeNodesRemoved in interface TreeModelListener
|
JavaTM 2 Platform Standard Edition |
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
Submit a bug or feature
Java, Java 2D, and JDBC are a trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.