/**
* This method is used to pass an algorithm decorator factory that is used for tracing (for
* example). See {@link #checkedRules(Object, Object[], IRuntimeEnv)} for full documentation
*
* @param target target object
* @param params parameters of a test
* @param env environment
* @param decoratorFactory a decorator factory that will decorate an objects that are used to
* calculate a rule
* @return iterator over <b>rule indexes</b> - integer iterator.
* @see #checkedRules(Object, Object[], IRuntimeEnv)
*/
protected final IIntIterator checkedRules(
Object target,
Object[] params,
IRuntimeEnv env,
DefaultAlgorithmDecoratorFactory decoratorFactory) {
// Select rules set using indexed mode
//
// ICondition[] conditions = table.getConditionRows();
IIntIterator iterator = null;
int conditionNumber = info.fromCondition;
if (indexRoot == null) {
iterator = info.makeRuleIterator();
} else {
ARuleIndex index = indexRoot;
for (; conditionNumber <= info.toCondition; conditionNumber++) {
index = decoratorFactory.create(index, table.getCondition(conditionNumber));
Object testValue =
evaluateTestValue(table.getCondition(conditionNumber), target, params, env);
DecisionTableRuleNode node = index.findNode(testValue);
if (!node.hasIndex()) {
iterator = node.getRulesIterator();
conditionNumber += 1;
break;
}
index = node.getNextIndex();
}
}
for (; conditionNumber <= info.toCondition; conditionNumber++) {
ICondition condition = table.getCondition(conditionNumber);
IConditionEvaluator evaluator = evaluators[conditionNumber];
IIntSelector sel = evaluator.getSelector(condition, target, params, env);
sel = decoratorFactory.create(sel, condition);
iterator = iterator.select(sel);
}
return iterator;
}
int[] collectRules() {
if (nextIndex == null)
throw new RuntimeException("Internal Error: nextIndex is null when rules is null");
return nextIndex.collectRules();
}