Interface DomHandler<ElementT,ResultT extends Result>

Method Detail

• createUnmarshaller

  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.

  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.

  Parameters:

  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.

  Returns:

  null if the operation fails. The error must have been reported to the error handler.

• getElement

  ElementT getElement(ResultT rt)

  Once the portion is sent to the 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.

  Parameters:

  rt - The Result object created by createUnmarshaller(ValidationEventHandler).

  Returns:

  null if the operation fails. The error must have been reported to the error handler.

• marshal

  Source marshal(ElementT n,
               ValidationEventHandler errorHandler)

  This method is called when a JAXB provider needs to marshal an element to XML.

  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.

  Parameters:

  errorHandler - Receives any errors happened during the process of converting an element into a Source. The caller must provide a non-null error handler.

  Returns:

  null if there was an error. The error should have been reported to the handler.