Class Daemon
- java.lang.Object
-
- org.simpleframework.common.thread.Daemon
-
- All Implemented Interfaces:
java.lang.Runnable
public abstract class Daemon extends java.lang.Object implements java.lang.Runnable
TheDaemon
object provides a named thread which will execute therun
method when started. This offers some convenience in that it hides the normal thread methods and also allows the object extending this to provide the name of the internal thread, which is given an incrementing sequence number appended to the name provided.- Author:
- Niall Gallagher
-
-
Constructor Summary
Constructors Modifier Constructor Description protected
Daemon()
Constructor for theDaemon
object.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
interrupt()
This is used to interrupt the internal thread.boolean
isActive()
This is used to determine if the runner is active.void
start()
This is used to start the internal thread.void
stop()
This method is used to stop the thread without forcing it to stop.
-
-
-
Constructor Detail
-
Daemon
protected Daemon()
Constructor for theDaemon
object. This will create the internal thread and ensure it is a daemon. When it is started the name of the internal thread is set using the name of the instance as taken fromgetName
. If the name provided is null then no name is set for the thread.
-
-
Method Detail
-
isActive
public boolean isActive()
This is used to determine if the runner is active. If it is not active then it is assumed that no thread is executing. Also, if this is extended then any executing thread to stop as soon as this method returns false.- Returns:
- this returns true if the runner is active
-
start
public void start()
This is used to start the internal thread. Once started the internal thread will execute therun
method of this instance. Aside from starting the thread this will also ensure the internal thread has a unique name.
-
interrupt
public void interrupt()
This is used to interrupt the internal thread. This is used when there is a need to wake the thread from a sleeping or waiting state so that some other operation can be performed. Typically this is required when killing the thread.
-
stop
public void stop()
This method is used to stop the thread without forcing it to stop. It acts as a means to deactivate it. It is up to the implementor to ensure that theisActive
method is checked to determine whether it should continue to run.
-
-