public interface DomHandler<ElementT,ResultT extends javax.xml.transform.Result>
Implementations of this interface will be used in conjunction with
XmlAnyElement annotation to map an element of XML into a representation
of infoset such as W3C DOM.
Implementations hide how a portion of XML is converted into/from such DOM-like representation, allowing JAXB providers to work with arbitrary such library.
This interface is intended to be implemented by library writers and consumed by JAXB providers. None of those methods are intended to be called from applications.
| Modifier and Type | Method and Description |
|---|---|
ResultT |
createUnmarshaller(ValidationEventHandler errorHandler)
When a JAXB provider needs to unmarshal a part of a document into an
infoset representation, it first calls this method to create a
Result object. |
ElementT |
getElement(ResultT rt)
Once the portion is sent to the
Result. |
javax.xml.transform.Source |
marshal(ElementT n,
ValidationEventHandler errorHandler)
This method is called when a JAXB provider needs to marshal an element
to XML.
|
ResultT createUnmarshaller(ValidationEventHandler errorHandler)
Result object.
A JAXB provider will then send a portion of the XML into the given result. Such a portion always form a subtree of the whole XML document rooted at an element.
errorHandler - if any error happens between the invocation of this method
and the invocation of getElement(Result), they
must be reported to this handler.
The caller must provide a non-null error handler.
The Result object created from this method
may hold a reference to this error handler.ElementT getElement(ResultT rt)
Result. This method is called
by a JAXB provider to obtain the unmarshalled element representation.
Multiple invocations of this method may return different objects.
This method can be invoked only when the whole sub-tree are fed
to the Result object.
rt - The Result object created by createUnmarshaller(ValidationEventHandler).javax.xml.transform.Source marshal(ElementT n, ValidationEventHandler errorHandler)
If non-null, the returned Source must contain a whole document
rooted at one element, which will then be weaved into a bigger document
that the JAXB provider is marshalling.
errorHandler - Receives any errors happened during the process of converting
an element into a Source.
The caller must provide a non-null error handler.