JAXBIntrospector (Java EE 5 SDK) (original) (raw)

javax.xml.bind

Class JAXBIntrospector

java.lang.Object extended by javax.xml.bind.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 Summary
JAXBIntrospector()
Method Summary
abstract QName getElementName(Object jaxbElement) Get xml element qname for jaxbElement.
static Object getValue(Object jaxbElement) Get the element value of a JAXB element.
abstract boolean isElement(Object object) Return true iff object represents a JAXB element.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Constructor Detail

JAXBIntrospector

public JAXBIntrospector()

Method Detail

isElement

public abstract boolean isElement(Object object)

Return true iff 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.

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