BHEP User Guide

This guide assumes you have already a working installation of BHEP.

Event Data Model

A data model in software engineering is an abstract model that describes how data are represented and accessed. Data models formally define data elements and relationships among data elements for a domain of interest.

Data Model hierarchy

Creating events

Input/output

Tools

Messenger

Parameter store

Parameter reader

Running the examples

BHEP comes with a full set of examples showing how to use the Event Data Model and related tools. Examples are located at:

bhpe3/examples/

and are listed below:

• particle_info: shows how to create and deal with particles and hits
• event_info: shows how to create events and connect particles and hits
• run_info: shows how to set and retrieve run and dst (files) properties
• root_io: shows how to serialize data and read them back from files
• bsvc: show how to use the BHEP service, a singleton with basic instances
• messages: shows how to use the log class
• stores: shows how to store parameters according to their type
• param_reader: shows how to set parameters from an ASCII file

To compile them, just type:

make examples

To run them all (errors, if any, will be reported):

./test_suite

-- Main.pnovella - 19 Apr 2010