Index.Support (Nodes API)

java.lang.Object
- org.openide.nodes.Index.Support

All Implemented Interfaces:

Index, Node.Cookie

Enclosing interface:

Index
```
public abstract static class Index.Support
extends java.lang.Object
implements Index
```
A support class implementing some methods of the Index cookie.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.openide.nodes.Index
  Index.ArrayChildren, Index.KeysChildren<T>, Index.Support

Constructor Summary

Constructors
Constructor Description

Support()
Default constructor.

Constructors
Constructor	Description
`Support()`	Default constructor.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addChangeListener(javax.swing.event.ChangeListener chl)`	Add a new listener to the listener list.
`void`	`exchange(int x, int y)`	Exchange two elements.
`protected void`	`fireChangeEvent(javax.swing.event.ChangeEvent che)`	Fires notification about reordering to all registered listeners.
`abstract Node[]`	`getNodes()`	Get the nodes; should be overridden if needed.
`abstract int`	`getNodesCount()`	Get the node count.
`int`	`indexOf(Node node)`	Get the index of a node.
`void`	`move(int x, int y)`	Move the element at the `x`-th position to the `y`-th position.
`void`	`moveDown(int x)`	Move an element down.
`void`	`moveUp(int x)`	Move an element up.
`void`	`removeChangeListener(javax.swing.event.ChangeListener chl)`	Remove a listener from the listener list.
`void`	`reorder()`	Reorder the nodes with dialog; should be overridden if needed.
`abstract void`	`reorder(int[] perm)`	Reorder by permutation.
`static void`	`showIndexedCustomizer(Index idx)`	Utility method to create and show an indexed customizer.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Support
```
public Support()
```
    Default constructor.
- Method Detail
  - move
```
public void move(int x,
                 int y)
```
    Description copied from interface: Index
    
    Move the element at the x-th position to the y-th position. All elements after the y-th position are moved down.
    
    Specified by:
    
    move in interface Index
    
    Parameters:
    
    x - the position to remove the element from
    
    y - the position to insert the element to
  - exchange
```
public void exchange(int x,
                     int y)
```
    Description copied from interface: Index
    
    Exchange two elements.
    
    Specified by:
    
    exchange in interface Index
    
    Parameters:
    
    x - position of the first element
    
    y - position of the second element
  - moveUp
```
public void moveUp(int x)
```
    Description copied from interface: Index
    
    Move an element up.
    
    Specified by:
    
    moveUp in interface Index
    
    Parameters:
    
    x - index of element to move up
  - moveDown
```
public void moveDown(int x)
```
    Description copied from interface: Index
    
    Move an element down.
    
    Specified by:
    
    moveDown in interface Index
    
    Parameters:
    
    x - index of element to move down
  - addChangeListener
```
public void addChangeListener(javax.swing.event.ChangeListener chl)
```
    Description copied from interface: Index
    
    Add a new listener to the listener list. The listener will be notified of any change in the order of the nodes.
    
    Specified by:
    
    addChangeListener in interface Index
    
    Parameters:
    
    chl - new listener
  - removeChangeListener
```
public void removeChangeListener(javax.swing.event.ChangeListener chl)
```
    Description copied from interface: Index
    
    Remove a listener from the listener list.
    
    Specified by:
    
    removeChangeListener in interface Index
    
    Parameters:
    
    chl - listener to remove
  - fireChangeEvent
```
protected void fireChangeEvent(javax.swing.event.ChangeEvent che)
```
    Fires notification about reordering to all registered listeners.
    
    Parameters:
    
    che - change event to fire off
  - getNodes
```
public abstract Node[] getNodes()
```
    Get the nodes; should be overridden if needed.
    
    Specified by:
    
    getNodes in interface Index
    
    Returns:
    
    the nodes
  - indexOf
```
public int indexOf(Node node)
```
    Get the index of a node. Simply scans through the array returned by getNodes().
    
    Specified by:
    
    indexOf in interface Index
    
    Parameters:
    
    node - the node
    
    Returns:
    
    the index, or -1 if the node was not found
  - reorder
```
public void reorder()
```
    Reorder the nodes with dialog; should be overridden if needed.
    
    Specified by:
    
    reorder in interface Index
  - showIndexedCustomizer
```
public static void showIndexedCustomizer(Index idx)
```
    Utility method to create and show an indexed customizer. Displays some sort of dialog permitting the index cookie to be reordered. Blocks until the reordering is performed (or cancelled).
    
    Parameters:
    
    idx - the index cookie to reorder based on
    
    Since:
    
    1.37
  - getNodesCount
```
public abstract int getNodesCount()
```
    Get the node count. Subclasses must provide this.
    
    Specified by:
    
    getNodesCount in interface Index
    
    Returns:
    
    the count
  - reorder
```
public abstract void reorder(int[] perm)
```
    Reorder by permutation. Subclasses must provide this.
    
    Specified by:
    
    reorder in interface Index
    
    Parameters:
    
    perm - the permutation

Class Index.Support

Nested Class Summary

Nested classes/interfaces inherited from interface org.openide.nodes.Index

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Support

Method Detail

move

exchange

moveUp

moveDown

addChangeListener

removeChangeListener

fireChangeEvent

getNodes

indexOf

reorder

showIndexedCustomizer

getNodesCount

reorder