org.hibernate.transform

Class DistinctRootEntityResultTransformer

java.lang.Object

org.hibernate.transform.DistinctRootEntityResultTransformer

All Implemented Interfaces:

java.io.Serializable, ResultTransformer

public class DistinctRootEntityResultTransformer
extends java.lang.Object
implements ResultTransformer, java.io.Serializable

Much like RootEntityResultTransformer, but we also distinct the entity in the final result.

Since this transformer is stateless, all instances would be considered equal. So for optimization purposes we limit it to a single, singleton instance.

Author:

Gavin King, Steve Ebersole

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static DistinctRootEntityResultTransformer	INSTANCE

Method Summary

Methods

Modifier and Type	Method and Description
java.util.List	transformList(java.util.List list) Simply delegates to DistinctResultTransformer.transformList(java.util.List).
java.lang.Object	transformTuple(java.lang.Object[] tuple, java.lang.String[] aliases) Simply delegates to RootEntityResultTransformer.transformTuple(java.lang.Object[], java.lang.String[]).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final DistinctRootEntityResultTransformer INSTANCE

Method Detail

transformTuple

public java.lang.Object transformTuple(java.lang.Object[] tuple,
                              java.lang.String[] aliases)

Simply delegates to RootEntityResultTransformer.transformTuple(java.lang.Object[], java.lang.String[]).

Specified by:

transformTuple in interface ResultTransformer

Parameters:

tuple - The tuple to transform

aliases - The tuple aliases

Returns:

The transformed tuple row.

transformList

public java.util.List transformList(java.util.List list)

Simply delegates to DistinctResultTransformer.transformList(java.util.List).

Specified by:

transformList in interface ResultTransformer

Parameters:

list - The list to transform.

Returns:

The transformed List.