question: private Object unmarshallEntityByName ( String entityName , Map < String , Object > map , Object currentNode ) throws ODataException { LOG . debug ( "Entity '{}' created." , entityName ) ; if ( ! isNullOrEmpty ( entityName ) ) { Object entity = loadEntity ( entityName ) ; setEntityProperties ( entity , JsonParserUtils . getStructuredType ( entityName , entityDataModel ) , map , currentNode ) ; LOG . debug ( "Entity '{}' properties mapped successfully." , entityName ) ; return entity ; } else { throw new ODataUnmarshallingException ( "Unmarshalling Entity name should be null !!!!..." ) ; } }
target:  Unmarsall a named entity.