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Préférences
Moteurs de recherche
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JavaTM 2 Platform Std. Ed. v1.6.0
javax.swing.tree
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Constructor Summary | |
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protected |
TreePath()
Primarily provided for subclasses that represent paths in a different manner. |
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TreePath(Object singlePath)
Constructs a TreePath containing only a single element. |
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TreePath(Object[] path)
Constructs a path from an array of Objects, uniquely identifying the path from the root of the tree to a specific node, as returned by the tree's data model. |
protected |
TreePath(Object[] path,
int length)
Constructs a new TreePath with the identified path components of length length . |
protected |
TreePath(TreePath parent,
Object lastElement)
Constructs a new TreePath, which is the path identified by parent ending in lastElement . |
Method Summary | |
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boolean |
equals(Object o)
Tests two TreePaths for equality by checking each element of the paths for equality. |
Object |
getLastPathComponent()
Returns the last component of this path. |
TreePath |
getParentPath()
Returns a path containing all the elements of this object, except the last path component. |
Object[] |
getPath()
Returns an ordered array of Objects containing the components of this TreePath. |
Object |
getPathComponent(int element)
Returns the path component at the specified index. |
int |
getPathCount()
Returns the number of elements in the path. |
int |
hashCode()
Returns the hashCode for the object. |
boolean |
isDescendant(TreePath aTreePath)
Returns true if aTreePath is a
descendant of this
TreePath. |
TreePath |
pathByAddingChild(Object child)
Returns a new path containing all the elements of this object plus child . |
String |
toString()
Returns a string that displays and identifies this object's properties. |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public TreePath(Object[] path)
The model is free to return an array of any Objects it needs to represent the path. The DefaultTreeModel returns an array of TreeNode objects. The first TreeNode in the path is the root of the tree, the last TreeNode is the node identified by the path.
path
- an array of Objects representing the path to a nodepublic TreePath(Object singlePath)
singlePath
- an Object representing the path to a nodeTreePath(Object[])
protected TreePath(TreePath parent, Object lastElement)
parent
ending in lastElement
.
protected TreePath(Object[] path, int length)
length
.
protected TreePath()
getPath
,
getPathCount
, and
getPathComponent
methods,
and possibly the equals
method.
Method Detail |
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public Object[] getPath()
TreePath(Object[])
public Object getLastPathComponent()
TreePath(Object[])
public int getPathCount()
public Object getPathComponent(int element)
element
- an int specifying an element in the path, where
0 is the first element in the path
IllegalArgumentException
- if the index is beyond the length
of the pathTreePath(Object[])
public boolean equals(Object o)
.equals
).
o
- the Object to compare
true
if this object is the same as the obj
argument; false
otherwise.Object.hashCode()
,
Hashtable
public int hashCode()
Object.equals(java.lang.Object)
,
Hashtable
public boolean isDescendant(TreePath aTreePath)
aTreePath
is a
descendant of this
TreePath. A TreePath P1 is a descendant of a TreePath P2
if P1 contains all of the components that make up
P2's path.
For example, if this object has the path [a, b],
and aTreePath
has the path [a, b, c],
then aTreePath
is a descendant of this object.
However, if aTreePath
has the path [a],
then it is not a descendant of this object. By this definition
a TreePath is always considered a descendant of itself. That is,
aTreePath.isDescendant(aTreePath)
returns true.
aTreePath
is a descendant of this pathpublic TreePath pathByAddingChild(Object child)
child
. child
will be the last element
of the newly created TreePath.
This will throw a NullPointerException
if child is null.
public TreePath getParentPath()
public String toString()