Class c2.comp.StackADTThread 
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Class c2.comp.StackADTThread 

java.lang.Object
   |
   +----c2.framework.Brick
           |
           +----c2.framework.Component
                   |
                   +----c2.framework.ComponentThread
                           |
                           +----c2.comp.StackADTThread
public class StackADTThread
extends ComponentThread
StackADTThread class.

Implements a stack abstract date type (ADT) in its own thread of control. It accepts requests for modifying and accessing the stack from components in a C2 architecture below it, and notifies such components of its internal state changes.

StackADTThread's C2 Message Interface

StackADTThread's methods should not be invoked directly in a C2 architecture. Instead, the ADT's functionality is accessed via C2 requests. In response to those requests, the ADT emits notifications of its internal state changes.

   Incoming Notifications
       none
   Outgoing Requests
       none
   Incoming Requests
       push (Object value);
       pop  ();
       top  ();
       get_state ();
   Outgoing Notifications
       pushed (Object value);
       popped (Object value);
       top    (Object value);
       state  (Stack stack);
       empty  ();

Variable Index

o stack
Stack ADT.

Constructor Index

o StackADTThread()
o StackADTThread(String)

Method Index

o create(String)
Initializes the StackADTThread.
o handle(Notification)
Handles notifications received from components above.
o handle(Request)
Handles C2 requests received from components below StackADTThread in an architecture.

Variables

o stack 
  protected Stack stack
Stack ADT.

Constructors

o StackADTThread 
  public StackADTThread()
o StackADTThread 
  public StackADTThread(String _name)

Methods

o create 
  public void create(String _name)
Initializes the StackADTThread.
o handle 
  public synchronized void handle(Request r)
Handles C2 requests received from components below StackADTThread in an architecture. Manipulates the ADT and notifies components below of the results of operations on the stack and/or the state of the stack.
Parameters:
r - C2 request.
Overrides:
handle in class Component
o handle 
  public synchronized void handle(Notification n)
Handles notifications received from components above. Assumes that StackADTThread is at the top of an architecture and receives no notifications; hence, this is an empty method.
Parameters:
n - C2 notification.
Overrides:
handle in class Component 
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