com.silveregg.wrapper
Interface WrapperListener
- All Known Implementing Classes:
- WrapperSimpleApp, WrapperStartStopApp
- public interface WrapperListener
Method Summary |
void |
controlEvent(int event)
Called whenever the native wrapper code traps a system control signal
against the Java process. |
java.lang.Integer |
start(java.lang.String[] args)
The start method is called when the WrapperManager is signaled by the
native wrapper code that it can start its application. |
int |
stop(int exitCode)
Called when the application is shutting down. |
start
public java.lang.Integer start(java.lang.String[] args)
- The start method is called when the WrapperManager is signaled by the
native wrapper code that it can start its application. This
method call is expected to return, so a new thread should be launched
if necessary.
If there are any problems, then an Integer should be returned, set to
the desired exit code. If the application should continue,
return null.
stop
public int stop(int exitCode)
- Called when the application is shutting down. The Wrapper assumes that
this method will return fairly quickly. If the shutdown code code
could potentially take a long time, then WrapperManager.stopping()
should be called to extend the timeout period. If for some reason,
the stop method can not return, then it must call
WrapperManager.stopped() to avoid warning messages from the Wrapper.
- Parameters:
exitCode
- The suggested exit code that will be returned to the OS
when the JVM exits.
- Returns:
- The exit code to actually return to the OS. In most cases, this
should just be the value of exitCode, however the user code has
the option of changing the exit code if there are any problems
during shutdown.
controlEvent
public void controlEvent(int event)
- Called whenever the native wrapper code traps a system control signal
against the Java process. It is up to the callback to take any actions
necessary. Possible values are: WrapperManager.WRAPPER_CTRL_C_EVENT,
WRAPPER_CTRL_CLOSE_EVENT, WRAPPER_CTRL_LOGOFF_EVENT, or
WRAPPER_CTRL_SHUTDOWN_EVENT
Copyright 2000, 2001 SilverEgg Technology Corp. All Rights Reserved.