FieldHandlerImpl fieldHandler = new FieldHandlerImpl(field, typeInfo);
FieldInfo fieldInfo = new FieldInfo(classInfo, fieldType, field
.getName(), fieldHandler);
fieldInfo.addNature(JPAFieldNature.class.getName());
JPAFieldNature jpaFieldNature = new JPAFieldNature(fieldInfo);
_fieldAnnotationProcessingService.processAnnotations(jpaFieldNature,
field.getAnnotations());
// if (jpaFieldNature.isId ()) {
// classInfo.addKey (fieldInfo);