La valeur constante booléenne "true".
<?xml version="1.0" encoding="UTF-8"?> <RuleSet name="Example_true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation= "http://www.curamsoftware.com/CreoleRulesSchema.xsd"> <Class name="TrueExampleRuleClass"> <Attribute name="isCuramExpertRulesFantastic"> <type> <javaclass name="Boolean"/> </type> <derivation> <true/> </derivation> </Attribute> <Attribute name="didCookbookWinPulitzerPrize"> <type> <javaclass name="Boolean"/> </type> <derivation> <not> <true/> </not> </derivation> </Attribute> </Class> </RuleSet>