TreeTreeDnDListener

All Superinterfaces:

java.util.EventListener
```
public interface TreeTreeDnDListener
extends java.util.EventListener
```
TreeTreeDnDListener represents a listener that receives notifications when some node from a tree is moved or copied into itself (or into another tree).

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`drop(TreeTreeDnDEvent anEvent)`	Invoked when the drop operation happens.
`void`	`mayDrop(TreeTreeDnDEvent anEvent)`	Invoked to verify that a node may be dropped into another node.

- Method Detail
  - mayDrop
```
void mayDrop(TreeTreeDnDEvent anEvent)
      throws DnDVetoException
```
    Invoked to verify that a node may be dropped into another node.
    
    Parameters:
    
    anEvent - a TreeTreeDnDEvent the event containing information about the Drag and Drop operation.
    
    Throws:
    
    DnDVetoException - if the drag and drop operation is not valid.
  - drop
```
void drop(TreeTreeDnDEvent anEvent)
   throws DnDVetoException
```
    Invoked when the drop operation happens.
    
    Parameters:
    
    anEvent - a TreeTreeDnDEvent the event containing information about the Drag and Drop operation.
    
    Throws:
    
    DnDVetoException - if the drag and drop operation is not valid.