HHH-12955 Avoid a warn message by updating SchemaAutoTooling values

Some valid values of hibernate.hbm2ddl.auto were not present in this
class, whereas they should have been.

hibernate-core/src/main/java/org/hibernate/boot/SchemaAutoTooling.java

@@ -7,6 +7,7 @@
 package org.hibernate.boot;
 
 import org.hibernate.HibernateException;
+import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.internal.util.StringHelper;
 
 /**
@@ -24,6 +25,14 @@ public enum SchemaAutoTooling {
 	 * schema on SessionFactory shutdown.
 	 */
 	CREATE_DROP( "create-drop" ),
+	/**
+	 * Create the schema on SessionFactory startup.
+	 */
+	CREATE_ONLY( "create-only" ),
+	/**
+	 * Drop the schema and don't recreate it.
+	 */
+	DROP( "drop" ),
 	/**
 	 * Update (alter) the schema on SessionFactory startup.
 	 */
@@ -59,10 +68,16 @@ public enum SchemaAutoTooling {
 		else if ( CREATE_DROP.externalForm.equals( configurationValue ) ) {
 			return CREATE_DROP;
 		}
+		else if ( CREATE_ONLY.externalForm.equals( configurationValue ) ) {
+			return CREATE_ONLY;
+		}
+		else if ( DROP.externalForm.equals( configurationValue ) ) {
+			return DROP;
+		}
 		else {
 			throw new HibernateException(
-					"Unrecognized hbm2ddl_auto value : " + configurationValue
+					"Unrecognized " + AvailableSettings.HBM2DDL_AUTO + " value: " + configurationValue
-							+ ".  Supported values include 'create', 'create-drop', 'update', 'none' and 'validate'."
+							+ ".  Supported values include 'create', 'create-drop', 'create-only', 'drop', 'update', 'none' and 'validate'."
 			);
 		}
 	}

hibernate-core/src/main/java/org/hibernate/cfg/Settings.java

@@ -254,7 +254,8 @@ public final class Settings {
 
 	public boolean isAutoCreateSchema() {
 		return sessionFactoryOptions.getSchemaAutoTooling() == SchemaAutoTooling.CREATE
-				|| sessionFactoryOptions.getSchemaAutoTooling() == SchemaAutoTooling.CREATE_DROP;
+				|| sessionFactoryOptions.getSchemaAutoTooling() == SchemaAutoTooling.CREATE_DROP
+				|| sessionFactoryOptions.getSchemaAutoTooling() == SchemaAutoTooling.CREATE_ONLY;
 	}
 
 	public boolean isAutoDropSchema() {

hibernate-core/src/test/java/org/hibernate/test/schemaupdate/Hbm2ddlCreateOnlyTest.java

@@ -0,0 +1,61 @@
+package org.hibernate.test.schemaupdate;
+
+import static org.junit.Assert.assertFalse;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.persistence.EntityManagerFactory;
+
+import org.hibernate.boot.internal.SessionFactoryOptionsBuilder;
+import org.hibernate.cfg.AvailableSettings;
+import org.hibernate.internal.CoreMessageLogger;
+import org.hibernate.jpa.boot.spi.Bootstrap;
+import org.hibernate.jpa.test.PersistenceUnitDescriptorAdapter;
+import org.hibernate.jpa.test.mapping.ColumnWithExplicitReferenceToPrimaryTableTest.AnEntity;
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.logger.LoggerInspectionRule;
+import org.hibernate.testing.logger.Triggerable;
+import org.jboss.logging.Logger;
+import org.junit.Rule;
+import org.junit.Test;
+
+public class Hbm2ddlCreateOnlyTest {
+
+	@Rule
+	public LoggerInspectionRule logInspection = new LoggerInspectionRule( Logger.getMessageLogger(
+			CoreMessageLogger.class, SessionFactoryOptionsBuilder.class.getName() ) );
+
+	@SuppressWarnings({ "rawtypes", "unchecked" })
+	@Test
+	@TestForIssue(jiraKey = "HHH-12955")
+	public void testColumnAnnotationWithExplicitReferenceToPrimaryTable() {
+		final PersistenceUnitDescriptorAdapter pu = new PersistenceUnitDescriptorAdapter() {
+			@Override
+			public List<String> getManagedClassNames() {
+				return Arrays.asList( AnEntity.class.getName() );
+			}
+		};
+
+
+		final Map settings = new HashMap();
+		settings.put( AvailableSettings.HBM2DDL_AUTO, "create-only" );
+
+		EntityManagerFactory emf = null;
+		try {
+			Triggerable triggerable = logInspection.watchForLogMessages( "Unrecognized " + AvailableSettings.HBM2DDL_AUTO + " value" );
+
+			emf = Bootstrap.getEntityManagerFactoryBuilder( pu, settings ).build();
+			emf.createEntityManager();
+
+			assertFalse( triggerable.wasTriggered() );
+		}
+		finally {
+			if ( emf != null ) {
+				emf.close();
+			}
+		}
+	}
+}