tryllian.afc.task.group
Class JoinGroupTask

java.lang.Object
  tryllian.afc.task.AbstractTask
      tryllian.afc.task.DefaultTask
          tryllian.afc.task.group.AbstractGroupTask
              tryllian.afc.task.group.JoinGroupTask

All Implemented Interfaces:

java.util.EventListener, MessageHandler, java.io.Serializable, Task

public class JoinGroupTask

extends tryllian.afc.task.group.AbstractGroupTask

Task that lets this agent join a Group. This Task sends a request to the JNDI System Agent requesting it to join a group:
request : join-group ( [ <parent-name>, ] <group-name> )

This request (and this Task) can only be expected to succeed if the specified group exists.

Joining a Group is idempotent.

See Also:

Serialized Form

Field Summary

Fields inherited from class tryllian.afc.task.AbstractTask

NL

Fields inherited from interface tryllian.afc.task.Task

EMPTY_FINISH_VALUE, FORCED_FINISH_FAILURE, NO_TIME_OUT, TASK_TIMED_OUT

Constructor Summary

JoinGroupTask(java.lang.String groupName)
Create a Task that lets the agent join a top-level Group.

JoinGroupTask(java.lang.String parentName, java.lang.String groupName)
Create a Task that lets the agent join a Group relative to another.

Method Summary

protected tryllian.afc.task.group.GroupName	getGroupName()
void	handleMessage(IncomingMessage message) Implemented to process the request reply messages.
protected void	taskStarted() Implemented to create and send the request.

Methods inherited from class tryllian.afc.task.DefaultTask

addFinishingTask, addTask, getSubtasks, handleHeartbeat, propagateHeartbeat

Methods inherited from class tryllian.afc.task.AbstractTask

addTaskListener, fail, fail, finish, finish, finish, forceFinish, forceFinish, getAgentContext, getFinishValue, getState, getSupertask, getTimeOut, heartbeatReceived, logException, messageReceived, removeTaskListener, setAgentContext, setFinishValue, setTimeOut, succeed, succeed, taskAdded, taskEnded, taskRemoved

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinGroupTask

public JoinGroupTask(java.lang.String groupName)

Create a Task that lets the agent join a top-level Group.

JoinGroupTask

public JoinGroupTask(java.lang.String parentName,
                     java.lang.String groupName)

Create a Task that lets the agent join a Group relative to another.

Method Detail

taskStarted

protected void taskStarted()

Implemented to create and send the request.

Overrides:

taskStarted in class AbstractTask

handleMessage

public void handleMessage(IncomingMessage message)

Implemented to process the request reply messages.

Overrides:

handleMessage in class AbstractTask

getGroupName

protected tryllian.afc.task.group.GroupName getGroupName()