org.hibernate.transform
Class RootEntityResultTransformer

java.lang.Object
  org.hibernate.transform.BasicTransformerAdapter
      org.hibernate.transform.RootEntityResultTransformer

All Implemented Interfaces:

Serializable, ResultTransformer

public final class RootEntityResultTransformer
extends BasicTransformerAdapter
implements Serializable

ResultTransformer implementation which limits the result tuple to only the "root entity".

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 RootEntityResultTransformer

INSTANCE

Constructor Summary

RootEntityResultTransformer()
Deprecated. Use the INSTANCE reference instead of explicitly creating a new one (to be removed in 3.4).

Method Summary

boolean	equals(Object other)
int	hashCode()
Object	transformTuple(Object[] tuple, String[] aliases) Return just the root entity from the row tuple.

Methods inherited from class org.hibernate.transform.BasicTransformerAdapter

transformList

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final RootEntityResultTransformer INSTANCE

Constructor Detail

RootEntityResultTransformer

public RootEntityResultTransformer()

Deprecated. Use the INSTANCE reference instead of explicitly creating a new one (to be removed in 3.4).

Instantiate RootEntityResultTransformer.

Method Detail

transformTuple

public Object transformTuple(Object[] tuple,
                             String[] aliases)

Return just the root entity from the row tuple.

Specified by:

transformTuple in interface ResultTransformer

Overrides:

transformTuple in class BasicTransformerAdapter

Parameters:

tuple - The result elements

aliases - The result aliases ("parallel" array to tuple)

Returns:

The transformed row.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object