javax.xml.xpath

AI-generated Key Takeaways

• The Java API for XML Processing (JAXP) provides interfaces and classes for evaluating XPath expressions on XML documents, including XPath, XPathExpression, XPathFunction, XPathFunctionResolver, and XPathVariableResolver.

• XPathFactory can be used to create XPath objects, which provide access to the XPath evaluation environment and expressions.

• Several exception classes such as XPathException, XPathExpressionException, XPathFactoryConfigurationException, and XPathFunctionException are defined to handle errors during XPath processing.

• XPathConstants defines constants that can be used in XPath expressions.

Interfaces

XPath	XPath provides access to the XPath evaluation environment and expressions.
XPathExpression	XPathExpression provides access to compiled XPath expressions.
XPathFunction	XPathFunction provides access to XPath functions.
XPathFunctionResolver	XPathFunctionResolver provides access to the set of user defined XPathFunctions.
XPathVariableResolver	XPathVariableResolver provides access to the set of user defined XPath variables.

Classes

XPathConstants	XPath constants.
XPathFactory	An XPathFactory instance can be used to create XPath objects.

Exceptions

XPathException	XPathException represents a generic XPath exception.
XPathExpressionException	XPathExpressionException represents an error in an XPath expression.
XPathFactoryConfigurationException	XPathFactoryConfigurationException represents a configuration error in a XPathFactory environment.
XPathFunctionException	XPathFunctionException represents an error with an XPath function.