com.ds.fw.utils
Class FwScheduler

java.lang.Object
  |
  +--com.ds.fw.utils.FwScheduler

public class FwScheduler

extends java.lang.Object

This class manages a number of tasks. Each task is an instance of class, inheritor of the FwTask class. There could be one and only instance of this scheduler, which is referenced by the getInstance() method. A task is added to the scheduler by addTask() method which has two parameters, first is a name of the task and second - a task object. The name is the task's key and it is used in the managing process. An added task could be removed from the scheduler (removeTask()) or its object could be get (getTask()), by its name. The scheduler's work flow could be managed by methods similar to these of a task. The scheduler could be started (start() - starts all added tasks), suspended (suspend() - suspends all tasks), resumed (resume() - resumes all tasks) or stopped (stop() - stops all tasks and clears the scheduler's tasks list).

Method Summary

void	addTask(java.lang.String taskName, com.ds.fw.utils.FwTask taskObject) This method adds a new Task to the task table.
void	addTasks(com.ds.fw.co.schedulebroker.FwCoScheduleBroker coScheduleBroker)
static com.ds.fw.utils.FwScheduler	getInstance() This method returns a reference to the only instance of the Scheduler class
com.ds.fw.utils.FwTask	getTask(java.lang.String taskToGet) This method gets a Task from the table
java.util.Vector	getTasks() This method gets all tasks from the table and returns a vector with them
static void	main(java.lang.String[] args) The main method first registers all tasks with the Scheduler,then runs them
void	removeTask(java.lang.String taskToBeRemoved) This method removes a Task from the table and destroys its thread
void	resume() This method is called to resume the stopped scheduler.
void	start() This method is called to start the scheduler.
void	stop() This method is called to remove all tasks
void	suspend() This method is called to stop the scheduler.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static com.ds.fw.utils.FwScheduler getInstance()

This method returns a reference to the only instance of the Scheduler class

main

public static void main(java.lang.String[] args)

The main method first registers all tasks with the Scheduler,then runs them

start

public void start()

This method is called to start the scheduler. It starts all tasks.

suspend

public void suspend()

This method is called to stop the scheduler. It pauses all threads.

resume

public void resume()

This method is called to resume the stopped scheduler. It resumes all threads.

stop

public void stop()

This method is called to remove all tasks

addTask

public void addTask(java.lang.String taskName,
                    com.ds.fw.utils.FwTask taskObject)

This method adds a new Task to the task table.

getTask

public com.ds.fw.utils.FwTask getTask(java.lang.String taskToGet)
                               throws java.lang.Exception

This method gets a Task from the table

java.lang.Exception

getTasks

public java.util.Vector getTasks()

This method gets all tasks from the table and returns a vector with them

removeTask

public void removeTask(java.lang.String taskToBeRemoved)

This method removes a Task from the table and destroys its thread

addTasks

public void addTasks(com.ds.fw.co.schedulebroker.FwCoScheduleBroker coScheduleBroker)