private void fclTreeRuleBlockActivation(Tree tree) {
String type = tree.getChild(0).getText();
if( debug ) Gpr.debug("Parsing: " + type);
if( type.equalsIgnoreCase("MIN") ) ruleActivationMethod = new RuleActivationMethodMin();
else if( type.equalsIgnoreCase("PROD") ) ruleActivationMethod = new RuleActivationMethodProduct();
else throw new RuntimeException("Unknown (or unimplemented) 'ACT' method: " + type);
}