seda.sandStorm.internal
Class SignalMgr

java.lang.Object
  seda.sandStorm.internal.SignalMgr

All Implemented Interfaces:

SignalMgrIF

 class SignalMgr
extends java.lang.Object
implements SignalMgrIF

The SignalMgr is an implementation of SignalMgrIF. It allows stages to register to receive certain signals and delivers those signals once they are triggered.

See Also:

SignalMgrIF, SignalIF

Field Summary

private java.util.Hashtable

signalTbl

Constructor Summary

SignalMgr()

Method Summary

void	deregister(SignalIF signalType, SinkIF sink) Deregister for the given signal type.
void	register(SignalIF signalType, SinkIF sink) Register for the given signal type.
void	trigger(SignalIF signal) Send the given signal to all registered sinks.

Methods inherited from class java.lang.Object

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

Field Detail

signalTbl

private java.util.Hashtable signalTbl

Constructor Detail

SignalMgr

SignalMgr()

Method Detail

register

public void register(SignalIF signalType,
                     SinkIF sink)

Register for the given signal type. When the signal is triggered, an object of the given type (although not necessarily the same object instance) will be delivered to the given SinkIF.

Specified by:

register in interface SignalMgrIF

deregister

public void deregister(SignalIF signalType,
                       SinkIF sink)

Deregister for the given signal type.

Specified by:

deregister in interface SignalMgrIF

trigger

public void trigger(SignalIF signal)

Send the given signal to all registered sinks. Uses enqueue_lossy on each sink, so if a sink rejects the signal this method will continue regardless. Package access only. XXX MDW: Really should register sinks with the chain of superclasses for each signal as well, so that triggering a superclass of a given signal will also reach those sinks registered for the subclass.