edu.mssm.crover.ims.tasks.groups
Class SequenceTask

java.lang.Object
  |
  +--edu.mssm.crover.ims.tasks.Task
        |
        +--edu.mssm.crover.ims.tasks.groups.GroupOfTasks
              |
              +--edu.mssm.crover.ims.tasks.groups.SequenceTask

All Implemented Interfaces:

TaskControl, TaskListener

public class SequenceTask

extends GroupOfTasks

Organizes a sequence of tasks. Tasks in this group are scheduled to be executed in the order they are added to the group. When the last task of the sequence is finished (failed or succeeded), the SequenceTask itself can start its execution.

Field Summary

Fields inherited from class edu.mssm.crover.ims.tasks.Task

data, priorTasks, status, taskID, taskType, tm

Constructor Summary

SequenceTask(TaskManager tm, long timeout)

Method Summary

void	add(Task new_last_task) Add a task to the sequence.
void	allFinished() Does nothing.
void	statusChanged(java.lang.String taskid, TaskStatus newstatus) The status of a task has just changed.

Methods inherited from class edu.mssm.crover.ims.tasks.Task

abnormalTermination, addListener, addPriorTask, getData, getPriorTasks, getStatus, getTaskID, getTaskType, getTimeout, installEngine, isReadyToStart, normalTermination, notifyListeners, priorTasksDone, process, removeListener, removePriorTask, setData, setTaskID, setTaskType, start

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceTask

public SequenceTask(TaskManager tm,
                    long timeout)

Method Detail

statusChanged

public void statusChanged(java.lang.String taskid,
                          TaskStatus newstatus)

The status of a task has just changed. We are notified of the new status and the identity of the task that experienced the change.

Specified by:

statusChanged in interface TaskListener

Overrides:

statusChanged in class Task

See Also:

TaskListener#statusChanged(String, TaskStatus)

add

public void add(Task new_last_task)
         throws TaskNotFoundException

Add a task to the sequence.

Specified by:

add in class GroupOfTasks

TaskNotFoundException

allFinished

public void allFinished()

Does nothing.

Specified by:

allFinished in class GroupOfTasks