/**
* @param db
* @return a db transformed in a database of events ???
*/
public Database preProcessing(Database db) {
Vector<Element> alphabet = m_tdm.m_contentC.m_taxonomy.getAlphabet(m_tdm.m_contentC.m_level);
Database preprocDB = new Database();
for (int i = 0; i < db.getSize(); i++) {
EventSequence s = db.elementAt(i);
Vector<Event> events = new Vector<Event>(0);
for (int k = 0; k < s.length(); k++) {
Event e = s.elementAtIndex(k);
if (m_tdm.m_temporalC.accepts(e)) {
Vector<Element> v = getParents(e.getSet(), alphabet, m_tdm.m_contentC.m_taxonomy);
if (null != v) events.addElement(new Event(new ItemSet(v), e.getInstant()));
}
}
if (0 != events.size()) preprocDB.addElement(new EventSequence(events));
}
preprocDB.setAlphabet(alphabet);
return preprocDB;
}