uk.ac.imperial.ph.hep.command
Class DaqCommand

java.lang.Object
  uk.ac.imperial.ph.hep.command.DaqCommand

Direct Known Subclasses:

DaqLogCmd, DaqStartRunCmd, DaqStateChangeCmd

public abstract class DaqCommand
extends java.lang.Object

Author:

Jamie Ballin, HEP, Imperial College London

Constructor Summary

DaqCommand()

Method Summary

abstract void	execute() Implementations do whatever it is they do here.
abstract java.lang.String	getDescription() Implementations should specify what it is they're doing with this string.
abstract boolean	isRunning()
protected void	notifyListeners(java.lang.String daqOutput) Daq commands can call this when they have some output.
void	registerListener(DaqCmdListener dcl) Parties interested in the output of these commands should register listeners here.
abstract void	terminate() Implementations should cease execution.
abstract java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DaqCommand

public DaqCommand()

Method Detail

execute

public abstract void execute()

Implementations do whatever it is they do here. This is asynchronous. It will not block.

terminate

public abstract void terminate()

Implementations should cease execution.

getDescription

public abstract java.lang.String getDescription()

Implementations should specify what it is they're doing with this string.

Returns:

A short description

registerListener

public void registerListener(DaqCmdListener dcl)

Parties interested in the output of these commands should register listeners here.

Parameters:

dcl -

isRunning

public abstract boolean isRunning()

notifyListeners

protected void notifyListeners(java.lang.String daqOutput)

Daq commands can call this when they have some output. Registered listeners will be called.

Parameters:

daqOutput -

toString

public abstract java.lang.String toString()

Overrides:

toString in class java.lang.Object