Andrea Boriero ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMmMwMDQyNGZl... ) / Improvement ( https://hibernate.atlassian.net/browse/HHH-15560?atlOrigin=eyJpIjoiMmMwMD... ) HHH-15560 ( https://hibernate.atlassian.net/browse/HHH-15560?atlOrigin=eyJpIjoiMmMwMD... ) Querying Parametrized Embeddable Subclass not supported ( https://hibernate.atlassian.net/browse/HHH-15560?atlOrigin=eyJpIjoiMmMwMD... ) Issue Type: Improvement Assignee: Unassigned Components: hibernate-core Created: 30/Sep/2022 02:56 AM Priority: Minor Reporter: Andrea Boriero ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) Given the model @MappedSuperclass public static class Edition<T> { private String editorName; @Column(name = "CODE_COLUMN" ) private T code; public Edition() { } public Edition( String editorName, T code) { this.editorName = editorName; this.code = code; } } @Embeddable public static class RareEdition extends Edition< Integer > { private String state; public RareEdition() { } public RareEdition( String editorName, Integer code, String state) { super ( editorName, code ); this.state = state; } } @Embeddable public static class PopularEdition extends Edition< String > { @Column(name = "YEAR_COLUMN" ) private Integer year; public PopularEdition() { } public PopularEdition( String editorName, String code, Integer year) { super ( editorName, code ); this.year = year; } } @Entity(name = "Base" ) @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS) public static class Base { @Id private Long id; public Base() { } public Base( Long id) { this.id = id; } } @MappedSuperclass public static abstract class Book<T extends Edition> extends Base { @Embedded private T edition; public Book() { } public Book( Long id, T edition) { super ( id ); this.edition = edition; } } @Entity(name = "PopularBook" ) public static class PopularBook extends Book<PopularEdition> { public PopularBook() { } public PopularBook( Long id, PopularEdition edition) { super ( id, edition ); } } @Entity(name = "RareBook" ) public static class RareBook extends Book<RareEdition> { public RareBook() { } public RareBook( Long id, RareEdition edition) { super ( id, edition ); } } the following test fails @Test @FailureExpected(jiraKey = "", reason = " Parametrized Embedded Subclasses not supported") public void testSelectSpecificEmbeddedAttribute(SessionFactoryScope scope) { scope.inTransaction( session -> { List< String > rareBookCodes = session.createQuery( "select b.edition.state from RareBook b where b.id = :id" , String.class ).setParameter( "id" , RARE_BOOK_ID ).list(); assertThat( rareBookCodes.size() ).isEqualTo( 1 ); String code = rareBookCodes.get( 0 ); assertThat( code ).isEqualTo( RARE_BOOK_STATE ); } ); scope.inTransaction( session -> { List< Integer > populareBookCodes = session.createQuery( "select b.edition.year from PopularBook b where b.id = :id" , Integer.class ).setParameter( "id" , POPULAR_BOOK_ID ).list(); assertThat( populareBookCodes.size() ).isEqualTo( 1 ); Integer code = populareBookCodes.get( 0 ); assertThat( code ).isEqualTo( POPULAR_BOOK_YEAR ); } ); } ( https://hibernate.atlassian.net/browse/HHH-15560#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15560#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100207- sha1:ee9e30a )