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java.lang.Objectcom.tensegrity.palowebviewer.modules.widgets.client.tree.AbstractTreeModel
com.tensegrity.palowebviewer.modules.widgets.client.tree.NodeTreeModel
public class NodeTreeModel
A kind of ITreeModel
that contains NodeTreeModel.TreeNode
objects instead of just plain objects. That simpifies the development of ITreeModel
because developer need to implement different kind of NodeTreeModel.TreeNode
s not the complex
structure in one ITreeModel
class.
Nested Class Summary | |
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class |
NodeTreeModel.TreeNode
|
Constructor Summary | |
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NodeTreeModel()
|
Method Summary | |
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java.lang.Object |
getChild(java.lang.Object parent,
int index)
Returns the child of parent at index index
in the parent's
child array. |
int |
getChildCount(java.lang.Object parent)
Returns the number of children of parent . |
int |
getIndexOfChild(java.lang.Object parent,
java.lang.Object child)
Returns the index of child in parent. |
java.lang.Object |
getRoot()
Returns the root of the tree. |
NodeTreeModel.TreeNode |
getRootNode()
|
boolean |
isLeaf(java.lang.Object node)
Returns true if node is a leaf. |
boolean |
isLoaded(java.lang.Object object)
|
void |
load(java.lang.Object object)
Requires to load children of object |
void |
setRoot(NodeTreeModel.TreeNode node)
|
void |
valueForPathChanged(TreePath path,
java.lang.Object newValue)
Messaged when the user has altered the value for the item identified by path to newValue . |
Methods inherited from class com.tensegrity.palowebviewer.modules.widgets.client.tree.AbstractTreeModel |
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addTreeModelListener, fireTreeNodesChanged, fireTreeNodesChanged, fireTreeNodesInserted, fireTreeNodesInserted, fireTreeNodesRemoved, fireTreeNodesRemoved, fireTreeStructureChanged, fireTreeStructureChanged, fireTreeStructureChanged, getChildNodes, isEventLocked, lockEvents, removeTreeModelListener, unlockEvents |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public NodeTreeModel()
Method Detail |
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public void setRoot(NodeTreeModel.TreeNode node)
public NodeTreeModel.TreeNode getRootNode()
public java.lang.Object getChild(java.lang.Object parent, int index)
ITreeModel
parent
at index index
in the parent's
child array. parent
must be a node previously obtained
from this data source. This should not return null
if index
is a valid index for parent
(that is index >= 0 &&
index < getChildCount(parent
)).
parent
- a node in the tree, obtained from this data source
parent
at index index
public int getChildCount(java.lang.Object parent)
ITreeModel
parent
.
Returns 0 if the node
is a leaf or if it has no children. parent
must be a node
previously obtained from this data source.
parent
- a node in the tree, obtained from this data source
parent
public int getIndexOfChild(java.lang.Object parent, java.lang.Object child)
ITreeModel
parent
is null
or child
is null
,
returns -1.
parent
- a note in the tree, obtained from this data sourcechild
- the node we are interested in
child
or parent
are null
public java.lang.Object getRoot()
ITreeModel
null
only if the tree has no nodes.
public boolean isLeaf(java.lang.Object node)
ITreeModel
true
if node
is a leaf.
It is possible for this method to return false
even if node
has no children.
A directory in a filesystem, for example,
may contain no files; the node representing
the directory is not a leaf, but it also has no children.
node
- a node in the tree, obtained from this data source
node
is a leafpublic void valueForPathChanged(TreePath path, java.lang.Object newValue)
ITreeModel
path
to newValue
.
If newValue
signifies a truly new value
the model should post a treeNodesChanged
event.
path
- path to the node that the user has alterednewValue
- the new valuepublic boolean isLoaded(java.lang.Object object)
isLoaded
in interface ITreeModel
isLoaded
in class AbstractTreeModel
public void load(java.lang.Object object)
ITreeModel
object
load
in interface ITreeModel
load
in class AbstractTreeModel
object
- - object to load children.
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