JAXBIntrospector (Java EE 5 SDK)

javax.xml.bind Class JAXBIntrospector

java.lang.Object
  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().

从以下版本开始:

JAXB2.0

另请参见:

JAXBContext.createJAXBIntrospector()

JAXBIntrospector

public JAXBIntrospector()

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.

另请参见:

getElementName(Object)

getElementName

public abstract QName getElementName(Object jaxbElement)

Get xml element qname for jaxbElement.

参数:

jaxbElement - is an object that isElement(Object) returned true.

返回:

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.

参数:

jaxbElement - object that #isElement(Object) returns true.

返回:

The element value of the jaxbElement.

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