org.jgap.distr
Class Master

java.lang.Object
  org.jgap.distr.Master

public abstract class Master
extends java.lang.Object

Represents an IMaster instance. Distributes work to IWorker instances. Allows to receive new tasks and send them to the workers when applicable.

Since:

2.3

Constructor Summary

Master(RequestDispatcher a_dispatcher, WorkerListener a_workerListener)
Constructor.

Method Summary

RequestDispatcher	getDispatcher()
MasterInfo	getMasterInfo()
WorkerListener	getWorkerListener()
void	sendToWorker(IWorker a_worker, WorkerCommand a_command) Sends a command to a worker.
abstract void	start() Starts the master listener.
void	stop() Stops the master from being working.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Master

public Master(RequestDispatcher a_dispatcher,
              WorkerListener a_workerListener)
       throws java.lang.Exception

Constructor.

Parameters:

a_dispatcher - the dispatcher to use for requests to workers

a_workerListener - the listener to use for listening to worker messages

Throws:

java.lang.Exception

Since:

2.4

Method Detail

start

public abstract void start()
                    throws java.lang.Exception

Starts the master listener. Implement in specific implementations of Master.

Throws:

java.lang.Exception

Since:

2.4

stop

public void stop()

Stops the master from being working.

getMasterInfo

public MasterInfo getMasterInfo()

Returns:

information about this master

Since:

2.4

sendToWorker

public void sendToWorker(IWorker a_worker,
                         WorkerCommand a_command)
                  throws java.io.IOException

Sends a command to a worker.

Parameters:

a_worker - the worker to send the command to

a_command - the command to send

Throws:

java.io.IOException

getDispatcher

public RequestDispatcher getDispatcher()

Returns:

the RequestDispatcher used

Since:

2.4

getWorkerListener

public WorkerListener getWorkerListener()

Returns:

the WorkerListener used

Since:

2.4