javax.safetycritical

Class ReleaseParameters

java.lang.Object

javax.safetycritical.ReleaseParameters

Direct Known Subclasses:

AperiodicParameters, PeriodicParameters

@SCJAllowed
public abstract class ReleaseParameters
extends java.lang.Object

All schedulability analysis of safety critical software is performed off line.
Although the RTSJ allows on-line schedulability analysis, SCJ assumes any such analysis is performed off line and that the on-line environment is predictable. Consequently, the assumption is that deadlines are not missed.
However, to facilitate fault-tolerant applications, SCJ does support a deadline miss detection facility at Levels 1 and 2.
SCJ provides no direct mechanisms for coping with cost overruns.

The ReleaseParameters class is restricted so that the parameters cannot be changed or queried.

Version:

1.0; - May 2012

Author:

Anders P. Ravn, Aalborg University, apr@cs.aau.dk,
Hans Søndergaard, VIA University College, Denmark, hso@viauc.dk

Relative_to_SCJ_Draft_Version_0.79:

- a missHandler has to be an AperiodicEventHandler

- semantic issue: What is a default deadline? Perhaps the default constructor should be private
- semantic issue: Why make it clonable?

Method Summary

Methods inherited from class java.lang.Object

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