jbcl.model Package
java.lang.Object +----com.borland.jbcl.model.GraphSelectionMulticaster
Properties Methods
Implements GraphSelectionListener, EventListener
A component that dispatches graph-selection events to multiple listeners. GraphModelMulticaster
maintains an array of listeners. The add()
, remove()
, and find()
methods maintain this list.
The hasListeners()
method determines whether any objects are listening for graph-selection events. The dispatch()
method sends a graph-selection event to all listeners.
public final synchronized void add(GraphSelectionListener listener)Adds an object to the array of listeners.
Parameters:
listener
public final void dispatch(GraphSelectionEvent e)Sends a graph-model event to all listeners. It is a high-speed dispatcher that does not need to be synchronized. If the event ID is ITEM_CHANGE, it calls the
selectionItemChanged
method of the graph-selection listeners. If the event ID is SELECTION_CHANGE, it calls the selectionChanged
method of the graph-selection listeners.
Parameters:
e
public int find(GraphSelectionListener listener)Searches for the specified listener among the array of listening objects.
Parameters:
listener
public final boolean hasListeners()Determines if there are any listeners for graph-selection events. If the method returns true, one or more listeners are present.
public final synchronized void remove(GraphSelectionListener listener)Removes the specified listening object from the array of listeners for graph-selection events.
Parameters:
listener