javax.xml.bind

Class JAXBIntrospector


  • public abstract class JAXBIntrospector
extends Object
    Provide access to JAXB xml binding data for a JAXB object.

    Intially, the intent of this class is to just conceptualize how a JAXB application developer can access xml binding information, independent if binding model is java to schema or schema to java. Since accessing the XML element name related to a JAXB element is a highly requested feature, demonstrate access to this binding information. The factory method to get a JAXBIntrospector instance is JAXBContext.createJAXBIntrospector().

    Since:
    JAXB2.0
    See Also:
    JAXBContext.createJAXBIntrospector()

    • Constructor Detail

      • JAXBIntrospector

        public JAXBIntrospector()

    • Method Detail

      • isElement

        public abstract boolean isElement(Object object)

        Return true if object represents a JAXB element.

        Parameter object is a JAXB element for following cases:

        1. It is an instance of javax.xml.bind.JAXBElement.
        2. The class of object is annotated with @XmlRootElement.
        See Also:
        getElementName(Object)

      • getElementName

        public abstract QName getElementName(Object jaxbElement)

        Get xml element qname for jaxbElement.

        Parameters:
        jaxbElement - is an object that isElement(Object) returned true.
        Returns:
        xml element qname associated with jaxbElement; null if jaxbElement is not a JAXB Element.

      • getValue

        public static Object getValue(Object jaxbElement)

        Get the element value of a JAXB element.

        Convenience method to abstract whether working with either a javax.xml.bind.JAXBElement instance or an instance of @XmlRootElement annotated Java class.

        Parameters:
        jaxbElement - object that #isElement(Object) returns true.
        Returns:
        The element value of the jaxbElement.