/**
* constructs an empty database for the given model
*
* @param model
* @throws Exception
*/
public GenericDatabase(RelationalModel model) throws Exception {
this.model = model;
entries = new HashMap<String, VariableType>();
domains = new HashMap<String, HashSet<String>>();
functionalDependencies = new HashMap<RelationKey, HashMap<String, String[]>>();
taxonomy = model.getTaxonomy();
paramHandler = new ParameterHandler(this);
paramHandler.add("debug", "setDebug");
paramHandler.add("debug", "setVerbose");
// initialize domains
if (taxonomy != null) {
entity2type = new HashMap<String, String>();
multiDomains = new HashMap<String, MultiIterator<String>>();
for (Concept c : model.getTaxonomy().getConcepts()) {
domains.put(c.name, new HashSet<String>());
}
}
// fill domains with guaranteed domain elements
for (Entry<String, ? extends Collection<String>> e :
model.getGuaranteedDomainElements().entrySet()) {
for (String element : e.getValue()) fillDomain(e.getKey(), element);
}
Collection<String> prologRules = model.getPrologRules();
prolog = new PrologKnowledgeBase();
if (prologRules != null && !prologRules.isEmpty()) {
System.out.println("building Prolog knowledge base... ");
for (String rule : prologRules) {
try {
System.out.println("telling " + rule);
prolog.tell(rule);
} catch (Throwable e) {
System.out.println("DID catch");
throw new Exception("Error processing rule '" + rule + "'", e);
}
}
}
}
