add VERSION_ROLE_NAME constant

Author: gavinking

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/EntityVersionMapping.java

@@ -14,6 +14,9 @@
  * @see jakarta.persistence.Version
  */
 public interface EntityVersionMapping extends BasicValuedModelPart {
+
+	String VERSION_ROLE_NAME = "{version}";
+
 	/**
 	 * The attribute marked as the version
 	 */

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

@@ -10,6 +10,7 @@
 import org.hibernate.EntityNameResolver;
 import org.hibernate.MappingException;
 import org.hibernate.SessionFactoryObserver;
+import org.hibernate.metamodel.mapping.EntityVersionMapping;
 import org.hibernate.type.TimeZoneStorageStrategy;
 import org.hibernate.boot.internal.DefaultCustomEntityDirtinessStrategy;
 import org.hibernate.boot.internal.MetadataImpl;
@@ -953,7 +954,7 @@ public MockEntityDomainType(JavaType<X> javaType, String jpaEntityName) {
 			else {
 				return new SingularAttributeImpl<>(
 						MockEntityDomainType.this,
-						"{version}",
+						EntityVersionMapping.VERSION_ROLE_NAME,
 						AttributeClassification.BASIC,
 						type,
 						type.getRelationalJavaType(),
@@ -1004,7 +1005,7 @@ public SqmPathSource<?> findSubPathSource(String name, boolean includeSubtypes)
 			switch (name) {
 				case EntityIdentifierMapping.ID_ROLE_NAME:
 					return getIdentifierDescriptor();
-				case "{version}":
+				case EntityVersionMapping.VERSION_ROLE_NAME:
 					return findVersionAttribute();
 			}
 			final SqmPathSource<?> source = super.findSubPathSource(name, includeSubtypes);

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

@@ -8,6 +8,7 @@
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.hibernate.PropertyNotFoundException;
 import org.hibernate.metamodel.mapping.EntityIdentifierMapping;
+import org.hibernate.metamodel.mapping.EntityVersionMapping;
 import org.hibernate.type.BasicType;
 import org.hibernate.type.CollectionType;
 import org.hibernate.type.CompositeType;
@@ -436,7 +437,8 @@ public Type identifierType() {
 		public BasicType<?> versionType() {
 			for (Element element : type.getEnclosedElements()) {
 				if ( hasAnnotation(element, "Version") ) {
-					return (BasicType<?>) factory.propertyType(element, getEntityName(), "{version}", defaultAccessType);
+					return (BasicType<?>) factory.propertyType(element, getEntityName(),
+							EntityVersionMapping.VERSION_ROLE_NAME, defaultAccessType);
 				}
 			}
 			return null;