16.3 ClipboardOwner Interface

Classes that need to place objects on a clipboard must implement the ClipboardOwner interface. An object becomes the clipboard owner by placing something on a Clipboard and remains owner as long as that object stays on the clipboard; it loses ownership when someone else writes to the clipboard. The ClipboardOwner interface provides a way to receive notification when you lose ownership--that is, when the object you placed on the clipboard is replaced by something else. Methods

public abstract void lostOwnership(Clipboard clipboard, Transferable contents)

The lostOwnership() method tells the owner of contents that it is no longer on the given clipboard. It is usually implemented as an empty stub but is available for situations in which you have to know.