This class acts as a bridge between a {@link org.intalio.tempo.workflow.tas.core.TaskAttachmentService} implementationand Axis2 service layer.
It receives XML messages from the Axis2 engine in AXIOM form, converts them to business objects, invokes the underlying {@link org.intalio.tempo.workflow.tas.core.TaskAttachmentService} instance and converts its response backto AXIOM form.