Take JPA database action into account when setting ddlAuto

See gh-25129

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/orm/jpa/DataSourceInitializedPublisher.java

@@ -129,7 +129,8 @@ class DataSourceInitializedPublisher implements BeanPostProcessor {
 				: "none");
 		Map<String, Object> hibernate = this.hibernateProperties.determineHibernateProperties(
 				this.jpaProperties.getProperties(), new HibernateSettings().ddlAuto(defaultDdlAuto));
-		return hibernate.containsKey("hibernate.hbm2ddl.auto");
+		return hibernate.containsKey("hibernate.hbm2ddl.auto") || !hibernate
+				.getOrDefault("javax.persistence.schema-generation.database.action", "none").equals("none");
 	}
 
 	/**

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateProperties.java

@@ -35,6 +35,7 @@ import org.springframework.util.StringUtils;
  * Configuration properties for Hibernate.
  *
  * @author Stephane Nicoll
+ * @author Chris Bono
  * @since 2.1.0
  * @see JpaProperties
  */
@@ -129,6 +130,9 @@ public class HibernateProperties {
 	}
 
 	private String determineDdlAuto(Map<String, String> existing, Supplier<String> defaultDdlAuto) {
+		if (existing.get(AvailableSettings.HBM2DDL_DATABASE_ACTION) != null) {
+			return null;
+		}
 		String ddlAuto = existing.get(AvailableSettings.HBM2DDL_AUTO);
 		if (ddlAuto != null) {
 			return ddlAuto;

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfigurationTests.java

@@ -91,6 +91,7 @@ import static org.mockito.Mockito.mock;
  * @author Andy Wilkinson
  * @author Kazuki Shimizu
  * @author Stephane Nicoll
+ * @author Chris Bono
  */
 class HibernateJpaAutoConfigurationTests extends AbstractJpaAutoConfigurationTests {
 
@@ -371,6 +372,50 @@ class HibernateJpaAutoConfigurationTests extends AbstractJpaAutoConfigurationTes
 				.run((context) -> assertThat(context).doesNotHaveBean(City.class));
 	}
 
+	@Test
+	void dataSourceSchemaCreatedEventFiredWhenDdlAutoPropertyIsSet() {
+		dataSourceSchemaCreatedEventFired("spring.jpa.hibernate.ddl-auto:create-drop", true);
+	}
+
+	@Test
+	void dataSourceSchemaCreatedEventNotFiredWhenDdlAutoPropertyIsSetToNone() {
+		dataSourceSchemaCreatedEventFired("spring.jpa.hibernate.ddl-auto:none", false);
+	}
+
+	@Test
+	void dataSourceSchemaCreatedEventFiredWhenHibernateSpecificDdlAutoPropertyIsSet() {
+		dataSourceSchemaCreatedEventFired("spring.jpa.properties.hibernate.hbm2ddl.auto=create", true);
+	}
+
+	@Test
+	void dataSourceSchemaCreatedEventNotFiredWhenHibernateSpecificDdlAutoPropertyIsSetToNone() {
+		dataSourceSchemaCreatedEventFired("spring.jpa.properties.hibernate.hbm2ddl.auto=none", false);
+	}
+
+	@Test
+	void dataSourceSchemaCreatedEventFiredWhenJpaDbActionPropertyIsSet() {
+		dataSourceSchemaCreatedEventFired(
+				"spring.jpa.properties.javax.persistence.schema-generation.database.action=drop-and-create", true);
+	}
+
+	@Test
+	void dataSourceSchemaCreatedEventNotFiredWhenJpaDbActionPropertyIsSetToNone() {
+		dataSourceSchemaCreatedEventFired(
+				"spring.jpa.properties.javax.persistence.schema-generation.database.action=none", false);
+	}
+
+	private void dataSourceSchemaCreatedEventFired(String schemaGenerationPropertyWithValue,
+			boolean expectEventToBeFired) {
+		contextRunner().withUserConfiguration(JpaUsingApplicationListenerConfiguration.class)
+				.withPropertyValues("spring.datasource.initialization-mode=never", schemaGenerationPropertyWithValue)
+				.run((context) -> {
+					assertThat(context).hasNotFailed();
+					assertThat(context.getBean(EventCapturingApplicationListener.class).events.stream()
+							.filter(DataSourceSchemaCreatedEvent.class::isInstance))
+									.hasSize(expectEventToBeFired ? 1 : 0);
+				});
+	}
+
 	@Test
 	void withSyncBootstrappingAnApplicationListenerThatUsesJpaDoesNotTriggerABeanCurrentlyInCreationException() {
 		contextRunner().withUserConfiguration(JpaUsingApplicationListenerConfiguration.class)

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernatePropertiesTests.java

@@ -44,6 +44,7 @@ import static org.mockito.Mockito.verify;
  *
  * @author Stephane Nicoll
  * @author Artsiom Yudovin
+ * @author Chris Bono
  */
 class HibernatePropertiesTests {
 
@@ -135,6 +136,19 @@ class HibernatePropertiesTests {
 				.run(assertDefaultDdlAutoNotInvoked("create"));
 	}
 
+	@Test
+	void defaultDdlAutoIsNotInvokedAndDdlAutoIsNotSetIfJpaDbActionPropertyIsSet() {
+		this.contextRunner
+				.withPropertyValues(
+						"spring.jpa.properties.javax.persistence.schema-generation.database.action=drop-and-create")
+				.run(assertHibernateProperties((hibernateProperties) -> {
+					assertThat(hibernateProperties).doesNotContainKey(AvailableSettings.HBM2DDL_AUTO);
+					assertThat(hibernateProperties).containsEntry(AvailableSettings.HBM2DDL_DATABASE_ACTION,
+							"drop-and-create");
+					verify(this.ddlAutoSupplier, never()).get();
+				}));
+	}
+
 	private ContextConsumer<AssertableApplicationContext> assertDefaultDdlAutoNotInvoked(String expectedDdlAuto) {
 		return assertHibernateProperties((hibernateProperties) -> {
 			assertThat(hibernateProperties).containsEntry(AvailableSettings.HBM2DDL_AUTO, expectedDdlAuto);