public interface ResultTransformer extends Serializable
Implementors define a strategy for transforming query results into the actual application-visible query result list.
Modifier and Type | Method and Description |
---|---|
List |
transformList(List collection)
Here we have an opportunity to perform transformation on the
query result as a whole.
|
Object |
transformTuple(Object[] tuple,
String[] aliases)
Tuples are the elements making up each "row" of the query result.
|
Object transformTuple(Object[] tuple, String[] aliases)
Tuples are the elements making up each "row" of the query result. The contract here is to transform these elements into the final row.
tuple
- The result elementsaliases
- The result aliases ("parallel" array to tuple)List transformList(List collection)
Here we have an opportunity to perform transformation on the query result as a whole. This might be useful to convert from one collection type to another or to remove duplicates from the result, etc.
collection
- The result.Copyright © 2001-2018 Red Hat, Inc. All Rights Reserved.