org.hibernate.transform: public interface: ResultTransformer

org.hibernate.transform
public interface: ResultTransformer [javadoc | source]

All Implemented Interfaces:
Serializable

All Known Implementing Classes:
RootEntityResultTransformer, PassThroughResultTransformer, ToListResultTransformer, DistinctRootEntityResultTransformer, DistinctResultTransformer, AliasToBeanConstructorResultTransformer, BasicTransformerAdapter, AliasToBeanResultTransformer, AliasToEntityMapResultTransformer

Implementors define a strategy for transforming query results into the actual application-visible query result list.

Also see:

org.hibernate.Criteria#setResultTransformer(ResultTransformer)

org.hibernate.Query#setResultTransformer(ResultTransformer)

author: Gavin - King

Method from org.hibernate.transform.ResultTransformer Summary:
transformList, transformTuple

Method from org.hibernate.transform.ResultTransformer Detail:
public 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.
public 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.

Method from org.hibernate.transform.ResultTransformer Detail:

 public 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.

 public 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.