protected void afterFactorAdd(Factor factor) {
super.afterFactorAdd(factor);
CPT cpt = (CPT) factor;
Variable child = cpt.getChild();
VarSet parents = cpt.getParents();
allCpts.put(child, cpt);
graph.addVertex(child);
graph.addAllVertices(parents);
for (Iterator it = parents.iterator(); it.hasNext(); ) {
Variable rent = (Variable) it.next();
graph.addEdge(rent, child);
}
}
protected void beforeFactorAdd(Factor factor) {
super.beforeFactorAdd(factor);
if (!(factor instanceof CPT)) {
throw new IllegalArgumentException(
"Factors of a directed model must be an instance of CPT, was " + factor);
}
CPT cpt = (CPT) factor;
Variable child = cpt.getChild();
VarSet parents = cpt.getParents();
if (graph.containsVertex(child)) {
checkForNoCycle(parents, child, cpt);
}
}