Considering we have a custom Type we register like this:
{noformat}@Override
protected void addConfigOptions(Map options) {
options.put(
EntityManagerFactoryBuilderImpl.METADATA_BUILDER_CONTRIBUTOR,
(MetadataBuilderContributor) metadataBuilder ->
metadataBuilder.applyTypes( (typeContributions, serviceRegistry) -> {
typeContributions.contributeType( ArrayType.INSTANCE );
} ));
}{noformat}
When calling the following query:
{code:java}
List<CorporateUserDTO> emails = entityManager.createNativeQuery(
"select " +
" u.userName as userName, " +
" u.emailAddresses as emailAddresses " +
"from CorporateUser u " +
"where u.userName = :name", "CorporateUserDTO" )
.setParameter( "name", "Vlad" )
.getResultList();
{code}
Where the emailAddresses uses a custom Typ and the {{CorporateUserDTO}} result set mapping is mapped like this:
{code:java}
@SqlResultSetMapping(
name = "CorporateUserDTO",
classes = @ConstructorResult(
targetClass = CorporateUserDTO.class,
columns = {
@ColumnResult(name = "userName"),
@ColumnResult(name = "emailAddresses", type = Array.class),
}
)
)
{code}
The following exception is thrown:
{noformat}
java javax . lang persistence . IllegalArgumentException PersistenceException : Could not locate appropriate constructor on class : org.hibernate. test. type. contributor.ArrayTypeContributorTest$CorporateUserDTO SerializationException: could not deserialize
at org.hibernate. loader internal . custom ExceptionConverterImpl . ConstructorResultColumnProcessor.resolveConstructor convert ( ConstructorResultColumnProcessor ExceptionConverterImpl .java: 92 154 )
at org.hibernate. loader query . custom internal . ConstructorResultColumnProcessor AbstractProducedQuery . performDiscovery list ( ConstructorResultColumnProcessor AbstractProducedQuery .java: 45 1542 )
at org.hibernate. loader query . custom Query . CustomLoader.autoDiscoverTypes getResultList ( CustomLoader Query .java: 494 165 )
at org.hibernate. loader test . Loader type . processResultSet contributor.ArrayTypeContributorTest.lambda$testNativeSQL$5 ( Loader ArrayTypeContributorTest .java: 2338 99 )
{noformat}
It looks like That’s because the Constructor {{Array}}property is resolved using the Hibernate Type by {{SerializableType}} instead of the actual Java Type {{ArrayType}} .
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