| XPath | XPath提供对XPath评估环境和表达式的访问。 |
| XPathEvaluationResult | XPathEvaluationResult接口表示在特定节点的上下文中评估XPath表达式的结果。 |
| XPathEvaluationResult.XPathResultType | XPathResultType表示XPath评估的可能返回类型。 |
| XPathException | XPathException表示一般的XPath异常。 |
| XPathExpression | XPathExpression提供对已编译的XPath表达式的访问。 |
| XPathExpressionException | XPathExpressionException表示XPath表达式中的错误。 |
| XPathFactory | XPathFactory实例可用于创建XPath对象。 |
| XPathFactoryConfigurationException | XPathFactoryConfigurationException表示 XPathFactory环境中的配置错误。 |
| XPathFunction | XPathFunction提供对XPath函数的访问。 |
| XPathFunctionException | XPathFunctionException表示XPath函数的错误。 |
| XPathFunctionResolver | XPathFunctionResolver提供对用户定义的 XPathFunction集的访问。 |
| XPathVariableResolver | XPathVariableResolver provides access to the set of user defined XPath variables. |