HHH-17525 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/inheritance/SingLeTableWithEmbeddedIdTest.java

@@ -0,0 +1,242 @@
+package org.hibernate.orm.test.inheritance;
+
+import java.io.Serializable;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.hibernate.orm.test.hql.CompositeIdEntity;
+
+import org.hibernate.testing.orm.junit.EntityManagerFactoryScope;
+import org.hibernate.testing.orm.junit.JiraKey;
+import org.hibernate.testing.orm.junit.Jpa;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.DiscriminatorValue;
+import jakarta.persistence.EmbeddedId;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Inheritance;
+import jakarta.persistence.InheritanceType;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.JoinTable;
+import jakarta.persistence.ManyToMany;
+import jakarta.persistence.ManyToOne;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+
+@Jpa(
+		annotatedClasses = {
+				SingLeTableWithEmbeddedIdTest.Entity1.class,
+				SingLeTableWithEmbeddedIdTest.Entity2.class,
+				SingLeTableWithEmbeddedIdTest.Parent.class,
+				SingLeTableWithEmbeddedIdTest.Entity3.class,
+				SingLeTableWithEmbeddedIdTest.Entity4.class,
+		}
+)
+@JiraKey("HHH-17525")
+public class SingLeTableWithEmbeddedIdTest {
+
+	@BeforeAll
+	public void setUp(EntityManagerFactoryScope scope) {
+		scope.inTransaction(
+				entityManager -> {
+					Entity1 entity1 = new Entity1( 1L, "entity1" );
+					entityManager.persist( entity1 );
+
+					Entity2 entity2 = new Entity2( 2L, "entity2" );
+					entityManager.persist( entity2 );
+
+					Entity3 entity3 = new Entity3( new CompositeId( entity1, entity2 ), "entity3" );
+
+					entityManager.persist( entity3 );
+
+					Entity4 entity4 = new Entity4( 4L );
+					entity4.addEntity( entity3 );
+					entityManager.persist( entity4 );
+				}
+		);
+	}
+
+	@Test
+	public void testHqlQuery(EntityManagerFactoryScope scope) {
+		scope.inTransaction(
+				entityManager -> {
+					Entity4 entity4 = entityManager.createQuery( "select e from Entity4 e ", Entity4.class )
+							.getSingleResult();
+					Set<Entity3> entities = entity4.getEntities();
+					assertThat(entities.size()).isEqualTo( 1 );
+					Entity3 entity3 = entities.iterator().next();
+					assertThat( entity3.getField()).isEqualTo( "entity3" );
+				}
+		);
+	}
+
+
+	@Entity(name = "Entity1")
+	public static class Entity1 {
+
+		@Id
+		Long id;
+
+		@Column
+		String field;
+
+		public Entity1() {
+		}
+
+		public Entity1(Long id, String field) {
+			this.id = id;
+			this.field = field;
+		}
+
+		public Long getId() {
+			return id;
+		}
+
+		public String getField() {
+			return field;
+		}
+	}
+
+	@Entity(name = "Entity2")
+	public static class Entity2 {
+
+		@Id
+		Long id;
+
+		@Column
+		String field;
+
+		public Entity2() {
+		}
+
+		public Entity2(Long id, String field) {
+			this.id = id;
+			this.field = field;
+		}
+
+		public Long getId() {
+			return id;
+		}
+
+		public String getField() {
+			return field;
+		}
+	}
+
+	public static class CompositeId implements Serializable {
+
+		@ManyToOne
+		Entity1 id1;
+
+		@ManyToOne
+		Entity2 id2;
+
+		public CompositeId() {
+		}
+
+		public CompositeId(Entity1 id1, Entity2 id2) {
+			this.id1 = id1;
+			this.id2 = id2;
+		}
+
+		public Entity1 getId1() {
+			return id1;
+		}
+
+
+		public Entity2 getId2() {
+			return id2;
+		}
+
+	}
+
+
+	@Entity(name = "Parent")
+	@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
+	public static class Parent {
+		@EmbeddedId
+		CompositeId id;
+
+		public Parent() {
+		}
+
+		public Parent(CompositeId id) {
+			this.id = id;
+		}
+
+		public CompositeId getId() {
+			return id;
+		}
+
+		public void setId(CompositeId id) {
+			this.id = id;
+		}
+
+	}
+
+	@Entity(name = "Entity3")
+	public static class Entity3 extends Parent {
+
+		String field;
+
+		public Entity3() {
+			super();
+		}
+
+		public Entity3(CompositeId id, String field) {
+			super( id );
+			this.field = field;
+		}
+
+		public String getField() {
+			return field;
+		}
+
+		public void setField(String field) {
+			this.field = field;
+		}
+	}
+
+	@Entity(name = "Entity4")
+	public static class Entity4 {
+		@Id
+		public Long id;
+
+		public String field;
+
+		@ManyToMany
+		@JoinTable(
+				name = "join_table",
+				joinColumns = { @JoinColumn(name = "entity3_id") },
+				inverseJoinColumns = {
+						@JoinColumn(name = "composite_id_entity_id1"),
+						@JoinColumn(name = "composite_id_entity_id2")
+				}
+		)
+		protected Set<Entity3> entities = new HashSet<>();
+
+		public Entity4() {
+		}
+
+		public Entity4(Long id) {
+			this.id = id;
+		}
+
+		public Long getId() {
+			return id;
+		}
+
+		public Set<Entity3> getEntities() {
+			return entities;
+		}
+
+		public void addEntity(Entity3 entity) {
+			this.entities.add( entity );
+		}
+	}
+
+
+}