Class Summary Class Description AbstractDelegateRule Deprecated. AbstractRuleBasic abstract implementation of all parser-independent methods of the Rule interface. AbstractVisitorRule ParametricRuleViolation Deprecated.This is internal. RuleReferenceThis class represents a Rule which is a reference to Rule defined in another RuleSet. RuleTargetSelectorA strategy for selecting nodes that will be targeted by a rule. XPathRuleRule that tries to match an XPath expression against a DOM view of an AST.