HHH 18705 - Hibernate processor creates bad TypedReferenceQuery when @Entity have name attribute

tooling/metamodel-generator/src/main/java/org/hibernate/processor/Context.java

@@ -17,6 +17,7 @@
 import javax.lang.model.element.AnnotationValue;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.ExecutableElement;
+import javax.lang.model.element.ModuleElement;
 import javax.lang.model.element.TypeElement;
 import javax.lang.model.type.DeclaredType;
 import javax.lang.model.type.TypeKind;
@@ -34,6 +35,7 @@
 import static java.lang.Boolean.parseBoolean;
 import static java.util.Collections.emptyList;
 import static org.hibernate.internal.util.collections.ArrayHelper.EMPTY_STRING_ARRAY;
+import static org.hibernate.processor.validation.ProcessorSessionFactory.findEntityByUnqualifiedName;
 
 /**
  * @author Max Andersen
@@ -505,4 +507,26 @@ public Map<String,Set<String>> getEnumTypesByValue() {
 	public void addEnumValue(String type, String value) {
 		enumTypesByValue.computeIfAbsent( value, s -> new TreeSet<>() ).add( type );
 	}
+
+	@Nullable
+	public TypeElement entityType(String entityName) {
+		final Elements elementUtils = getElementUtils();
+		final String qualifiedName = qualifiedNameForEntityName(entityName);
+		if ( qualifiedName != null ) {
+			return elementUtils.getTypeElement(qualifiedName);
+		}
+		TypeElement symbol =
+				findEntityByUnqualifiedName( entityName,
+						elementUtils.getModuleElement("") );
+		if ( symbol != null ) {
+			return symbol;
+		}
+		for ( ModuleElement module : elementUtils.getAllModuleElements() ) {
+			symbol = findEntityByUnqualifiedName( entityName, module );
+			if ( symbol != null ) {
+				return symbol;
+			}
+		}
+		return null;
+	}
 }

tooling/metamodel-generator/src/main/java/org/hibernate/processor/annotation/AnnotationMeta.java

@@ -13,11 +13,7 @@
 import org.hibernate.processor.util.Constants;
 import org.hibernate.processor.validation.ProcessorSessionFactory;
 import org.hibernate.processor.validation.Validation;
-import org.hibernate.query.criteria.JpaEntityJoin;
-import org.hibernate.query.criteria.JpaRoot;
-import org.hibernate.query.criteria.JpaSelection;
 import org.hibernate.query.sqm.tree.SqmStatement;
-import org.hibernate.query.sqm.tree.select.SqmSelectClause;
 import org.hibernate.query.sqm.tree.select.SqmSelectStatement;
 
 import javax.lang.model.element.AnnotationMirror;
@@ -33,6 +29,7 @@
 import static org.hibernate.processor.util.TypeUtils.containsAnnotation;
 import static org.hibernate.processor.util.TypeUtils.getAnnotationMirror;
 import static org.hibernate.processor.util.TypeUtils.getAnnotationValue;
+import static org.hibernate.processor.util.SqmTypeUtils.resultType;
 
 public abstract class AnnotationMeta implements Metamodel {
 
@@ -126,7 +123,7 @@ private void handleNamedQuery(AnnotationMirror mirror, boolean checkHql) {
 							);
 						}
 						if ( getAnnotationValue( mirror, "resultClass" ) == null ) {
-							final String resultType = resultType( selectStatement );
+							final String resultType = resultType( selectStatement, context );
 							if ( resultType != null ) {
 								putMember( "QUERY_" + name,
 										new TypedMetaAttribute( this, name, "QUERY_", resultType,
@@ -139,27 +136,6 @@ private void handleNamedQuery(AnnotationMirror mirror, boolean checkHql) {
 		}
 	}
 
-	private static @Nullable String resultType(SqmSelectStatement<?> selectStatement) {
-		final JpaSelection<?> selection = selectStatement.getSelection();
-		if (selection == null) {
-			return null;
-		}
-		else if (selection instanceof SqmSelectClause from) {
-			return from.getSelectionItems().size() > 1
-					? "Object[]"
-					: from.getSelectionItems().get(0).getJavaTypeName();
-		}
-		else if (selection instanceof JpaRoot<?> root) {
-			return root.getModel().getTypeName();
-		}
-		else if (selection instanceof JpaEntityJoin<?, ?> join) {
-			return join.getModel().getTypeName();
-		}
-		else {
-			return selection.getJavaTypeName();
-		}
-	}
-
 	private static boolean isQueryMethodName(String name) {
 		return name.length() >= 2
 			&& name.charAt(0) == '#'

tooling/metamodel-generator/src/main/java/org/hibernate/processor/annotation/NamedQueryMethod.java

@@ -5,24 +5,17 @@
 package org.hibernate.processor.annotation;
 
 import org.checkerframework.checker.nullness.qual.Nullable;
-import org.hibernate.processor.Context;
 import org.hibernate.processor.model.MetaAttribute;
 import org.hibernate.processor.model.Metamodel;
 import org.hibernate.processor.util.Constants;
 import org.hibernate.query.sqm.SqmExpressible;
 import org.hibernate.query.sqm.tree.expression.SqmParameter;
 import org.hibernate.query.sqm.tree.select.SqmSelectStatement;
-import org.hibernate.query.sqm.tree.select.SqmSelectableNode;
-import org.hibernate.type.descriptor.java.JavaType;
 
-import javax.lang.model.element.ModuleElement;
-import javax.lang.model.element.TypeElement;
-import javax.lang.model.util.Elements;
-import java.util.List;
 import java.util.TreeSet;
 
 import static org.hibernate.processor.util.StringUtil.nameToFieldName;
-import static org.hibernate.processor.validation.ProcessorSessionFactory.findEntityByUnqualifiedName;
+import static org.hibernate.processor.util.SqmTypeUtils.resultType;
 
 /**
  * @author Gavin King
@@ -96,27 +89,6 @@ private String fieldName() {
 		return "QUERY_" + nameToFieldName(name);
 	}
 
-	private String returnType() {
-		final JavaType<?> javaType = select.getSelection().getJavaTypeDescriptor();
-		if ( javaType != null ) {
-			return javaType.getTypeName();
-		}
-		else {
-			final List<SqmSelectableNode<?>> items =
-					select.getQuerySpec().getSelectClause().getSelectionItems();
-			final SqmExpressible<?> expressible;
-			if ( items.size() == 1 && ( expressible = items.get( 0 ).getExpressible() ) != null ) {
-				final String typeName = expressible.getTypeName();
-				final TypeElement entityType = entityType( typeName );
-				return entityType == null ? typeName : entityType.getQualifiedName().toString();
-
-			}
-			else {
-				return "Object[]";
-			}
-		}
-	}
-
 	void notNull(StringBuilder declaration) {
 		if ( addNonnullAnnotation ) {
 			declaration
@@ -149,7 +121,7 @@ private void returnType(StringBuilder declaration) {
 		declaration
 				.append(annotationMeta.importType(Constants.LIST))
 				.append('<')
-				.append(annotationMeta.importType(returnType()))
+				.append( annotationMeta.importType( resultType( select, annotationMeta.getContext() ) ) )
 				.append("> ")
 				.append(name);
 		if ( reactive ) {
@@ -193,28 +165,6 @@ private String parameterType(SqmParameter<?> param) {
 		return "unknown".equals(paramType) ? "Object" : annotationMeta.importType(paramType);
 	}
 
-	private @Nullable TypeElement entityType(String entityName) {
-		final Context context = annotationMeta.getContext();
-		final Elements elementUtils = context.getElementUtils();
-		final String qualifiedName = context.qualifiedNameForEntityName(entityName);
-		if ( qualifiedName != null ) {
-			return elementUtils.getTypeElement(qualifiedName);
-		}
-		TypeElement symbol =
-				findEntityByUnqualifiedName( entityName,
-						elementUtils.getModuleElement("") );
-		if ( symbol != null ) {
-			return symbol;
-		}
-		for ( ModuleElement module : elementUtils.getAllModuleElements() ) {
-			symbol = findEntityByUnqualifiedName( entityName, module );
-			if ( symbol != null ) {
-				return symbol;
-			}
-		}
-		return null;
-	}
-
 	@Override
 	public String getAttributeNameDeclarationString() {
 		throw new UnsupportedOperationException("operation not supported");

tooling/metamodel-generator/src/main/java/org/hibernate/processor/util/SqmTypeUtils.java

@@ -0,0 +1,38 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.processor.util;
+
+import org.hibernate.processor.Context;
+import org.hibernate.query.sqm.SqmExpressible;
+import org.hibernate.query.sqm.tree.select.SqmSelectStatement;
+import org.hibernate.query.sqm.tree.select.SqmSelectableNode;
+
+import javax.lang.model.element.TypeElement;
+import java.util.List;
+
+public final class SqmTypeUtils {
+	private SqmTypeUtils() {
+	}
+
+	public static String resultType(SqmSelectStatement<?> selectStatement, Context context) {
+		final String javaTypeName = selectStatement.getSelection().getJavaTypeName();
+		if ( javaTypeName != null ) {
+			return javaTypeName;
+		}
+		else {
+			final List<SqmSelectableNode<?>> items =
+					selectStatement.getQuerySpec().getSelectClause().getSelectionItems();
+			final SqmExpressible<?> expressible;
+			if ( items.size() == 1 && (expressible = items.get( 0 ).getExpressible()) != null ) {
+				final String typeName = expressible.getTypeName();
+				final TypeElement entityType = context.entityType( typeName );
+				return entityType == null ? typeName : entityType.getQualifiedName().toString();
+			}
+			else {
+				return "Object[]";
+			}
+		}
+	}
+}

tooling/metamodel-generator/src/test/java/org/hibernate/processor/test/namedentity/Book.java

@@ -0,0 +1,18 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.processor.test.namedentity;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.NamedQuery;
+
+@Entity(name = "Liber")
+@NamedQuery(name = "findAllBooks", query = "from Liber")
+public class Book {
+	@Id
+	private Integer id;
+
+	private String name;
+}

tooling/metamodel-generator/src/test/java/org/hibernate/processor/test/namedentity/NamedEntityTest.java

@@ -0,0 +1,40 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.processor.test.namedentity;
+
+import jakarta.persistence.TypedQueryReference;
+import org.hibernate.processor.test.util.CompilationTest;
+import org.hibernate.processor.test.util.WithClasses;
+import org.junit.Test;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+
+import static org.hibernate.processor.test.util.TestUtil.assertMetamodelClassGeneratedFor;
+import static org.hibernate.processor.test.util.TestUtil.assertPresenceOfFieldInMetamodelFor;
+import static org.hibernate.processor.test.util.TestUtil.getFieldFromMetamodelFor;
+import static org.hibernate.processor.test.util.TestUtil.getMetaModelSourceAsString;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class NamedEntityTest extends CompilationTest {
+
+	@Test
+	@WithClasses(Book.class)
+	public void test() {
+		System.out.println( getMetaModelSourceAsString( Book.class ) );
+
+		assertMetamodelClassGeneratedFor( Book.class );
+
+		assertPresenceOfFieldInMetamodelFor( Book.class, "QUERY_FIND_ALL_BOOKS" );
+		final Field field = getFieldFromMetamodelFor( Book.class, "_findAllBooks_" );
+		assertEquals( TypedQueryReference.class, field.getType() );
+		final Type genericType = field.getGenericType();
+		assertTrue( genericType instanceof ParameterizedType );
+		final ParameterizedType parameterizedType = (ParameterizedType) genericType;
+		assertEquals( Book.class, parameterizedType.getActualTypeArguments()[0] );
+	}
+}