Java Profiler 9.0 HelpProbes: extendable profiling and monitoringMonitoring method invocation eventsCallback method parameter annotation @OnEnterResult
Callback parameter annotated with @OnEnterResult
will be assigned with a value returned from onEnter()
defined in the same probe class.
This approach enables effective way of data transfer
between method enter and exit callbacks
(the value is stored in the stack).
In which callbacks can be used
Parameter annotated with @OnEnterResult
can be used in onReturn(),
onUncaughtException() and
onUncaughtExceptionExt(),
and only if the probe class has non-void onEnter()
defined.
Declaration type
Parameter annotated with @OnEnterResult must be declared with the same
type as the return type of onEnter().
If onEnter() is declared void,
@OnEnterResult cannot be used.