borland Packages  Class Hierarchy  jbcl.model Package  Index 

MatrixModelMulticaster class

java.lang.Object
   +----borland.jbcl.model.MatrixModelMulticaster

About the MatrixModelMulticaster class

Properties  Methods  

Implements MatrixModelListener, EventListener

A class that dispatches matrix-model events to multiple listeners. MatrixModelMulticaster maintains an array of listeners. The add(), remove(), and find() methods are used to manage this list.

The hasListeners() method determines whether any objects are listening for matrix-model events. The dispatch() method sends a matrix-model event to all listeners.

MatrixModelMulticaster is not required to synchronize its access of the array of listeners because all changes are made to a copy of the original list.


MatrixModelMulticaster properties

*Read-only properties **Write-only properties

Properties implemented in java.lang.Object

MatrixModelMulticaster methods

Methods implemented in this class

Methods implemented in java.lang.Object


MatrixModelMulticaster methods

add(borland.jbcl.model.MatrixModelListener)

  public final synchronized void add(borland.jbcl.model.MatrixModelListener listener)
Adds an object to the array of listeners.

Parameters:

listener
The object that is added to the list of listeners for matrix-model events.

dispatch(borland.jbcl.model.MatrixModelEvent)

  public final void dispatch(borland.jbcl.model.MatrixModelEvent e)
Sends a matrix-model event to all listeners. This is a high-speed dispatcher that does not need to be synchronized. If the event ID is CONTENT_CHANGED, it calls the modelContentChanged() method of the matrix-model listeners. If the event ID is STRUCTURE_CHANGED, it calls the modelStructureChanged() method of the matrix-model listeners.

Parameters:

e
The matrix-model event sent to all listeners.

find(borland.jbcl.model.MatrixModelListener)

  public int find(borland.jbcl.model.MatrixModelListener listener)
Searches for the specified listener among the array of listening objects.

Parameters:

listener
The object you are searching for in the list of listeners.

hasListeners()

  public final boolean hasListeners()
Determines if there are any listeners for matrix-model events. If the method returns true, one or more listeners are present.

remove(borland.jbcl.model.MatrixModelListener)

  public final synchronized void remove(borland.jbcl.model.MatrixModelListener listener)
Removes the specified listening object from the array of listeners for matrix-model events.

Parameters:

listener
The listening object that is removed from the array of listeners.