org.hibernate.transform
Class DistinctRootEntityResultTransformer

java.lang.Object
  org.hibernate.transform.DistinctRootEntityResultTransformer

All Implemented Interfaces:

ResultTransformer, Serializable

public class DistinctRootEntityResultTransformer

extends Object

implements ResultTransformer, 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

static DistinctRootEntityResultTransformer

INSTANCE

Constructor Summary

DistinctRootEntityResultTransformer()
Deprecated. Use the INSTANCE reference instead of explicitly creating a new one.

Method Summary

boolean	equals(Object obj)
List	transformList(List list) Simply delegates to DistinctResultTransformer.transformList(java.util.List).
Object	transformTuple(Object[] tuple, String[] aliases) Simply delegates to RootEntityResultTransformer.transformTuple(java.lang.Object[], java.lang.String[]).

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final DistinctRootEntityResultTransformer INSTANCE

Constructor Detail

DistinctRootEntityResultTransformer

public DistinctRootEntityResultTransformer()

Deprecated. Use the INSTANCE reference instead of explicitly creating a new one.

Instantiate a DistinctRootEntityResultTransformer.

Method Detail

transformTuple

public Object transformTuple(Object[] tuple,
                             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 List transformList(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.

equals

public boolean equals(Object obj)