org.hibernate.transform

Class AliasToBeanResultTransformer

java.lang.Object

org.hibernate.transform.BasicTransformerAdapter

org.hibernate.transform.AliasedTupleSubsetResultTransformer

org.hibernate.transform.AliasToBeanResultTransformer

All Implemented Interfaces:

Serializable, ResultTransformer, TupleSubsetResultTransformer

public class AliasToBeanResultTransformer
extends AliasedTupleSubsetResultTransformer

Result transformer that allows to transform a result to a user specified class which will be populated via setter methods or fields matching the alias names.

 List resultWithAliasedBean = s.createCriteria(Enrolment.class)
                        .createAlias("student", "st")
                        .createAlias("course", "co")
                        .setProjection( Projections.projectionList()
                                        .add( Projections.property("co.description"), "courseDescription" )
                        )
                        .setResultTransformer( new AliasToBeanResultTransformer(StudentDTO.class) )
                        .list();
 

  StudentDTO dto = (StudentDTO)resultWithAliasedBean.get(0);
        

Author:

max

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AliasToBeanResultTransformer(Class resultClass)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
int	hashCode()
boolean	isTransformedValueATupleElement(String[] aliases, int tupleLength) When a tuple is transformed, is the result a single element of the tuple?
Object	transformTuple(Object[] tuple, String[] aliases) Tuples are the elements making up each "row" of the query result.

Methods inherited from class org.hibernate.transform.AliasedTupleSubsetResultTransformer

includeInTransform

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

Methods inherited from interface org.hibernate.transform.ResultTransformer

transformList

Constructor Detail

AliasToBeanResultTransformer

public AliasToBeanResultTransformer(Class resultClass)

Method Detail

isTransformedValueATupleElement

public boolean isTransformedValueATupleElement(String[] aliases,
                                               int tupleLength)

Description copied from interface: TupleSubsetResultTransformer

When a tuple is transformed, is the result a single element of the tuple?

Parameters:

aliases - - the aliases that correspond to the tuple

tupleLength - - the number of elements in the tuple

Returns:

true, if the transformed value is a single element of the tuple; false, otherwise.

transformTuple

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

Description copied from interface: ResultTransformer

Tuples are the elements making up each "row" of the query result. The contract here is to transform these elements into the final row.

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.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object