In large part being inspired by a discussion with Peter yesterday I
implemeted a simple utility manager
(yes yet another one) that can assist in pulling out event information.
see also the message from Peter. I enclose the class description from
the source code. IThere is also a test macro that demonstrates the use
of the feature.
I see this as a tool to avoid duplication of extrating event information
in user modules, which in fact may not even have access to the
eventheader.
new code
base/.. /BrEventManager.h .cxx
test/TestEventManager,cxx
modified
Linkdef files.
//////////////////////////////////////////////////////////////////
//
// BrEventManager
//
// This manager class will assits user module is retrieving general
// event information regardless if a module has access to the
EventHeader.
//
//
// Sample code:
//
// The application can load the Manager and keep a global pointer
// accesible via a Brat common application file. It is in fact
// implemented via a Singleton mechanism. This enables us to use both
/ implemented via a Singleton mechanism. This enables us to use both
// the global mechanism as well as the instantons.
//
// Main application will have
// ---------------------------
// BrEventManager *gEventMgr =
// BrEventManager::Instance();
//
//
//
// The application that reads the Event from DISK EVB etc
// should call the event method for the EventManager i.e.
// InputFile->Event(event);
// if(InputFile->Eof()){
// cout << "End Of Data" << endl;
// break;
// }
// gEventMgr->Event(event);
//
//
// The user module should have (either in the Named Constructor
// or in the Init() method.
// ------------------------------------
// BrParameterElementManager *gParamDb =
// BrParameterElementManager::Instance();
//
//
// At the time of Event the user code could access information e.g.
// as such
// BrEventManager *gEventMgr =
// BrEventManager::Instance();
//
// if(gEventMgr->IsEvent()){
/ ....
// }
// int evno = gEventMgr->Event();
// if(gEventMgr->TriggerOn(6)){
// // collisions event
// ...
// }
//
// See also the TestEventManager.cxx in the brat/test directory
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