Remove legacy config options from AbstractReactiveTransactionManager

Includes general revision of reactive transaction sources.

See gh-22646

spring-tx/src/main/java/org/springframework/transaction/ReactiveTransactionManager.java

@@ -5,7 +5,7 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -18,15 +18,14 @@
 
 import reactor.core.publisher.Mono;
 
-import org.springframework.lang.Nullable;
-
 /**
  * This is the central interface in Spring's reactive transaction infrastructure.
  * Applications can use this directly, but it is not primarily meant as API:
  * Typically, applications will work with either transactional operators or
  * declarative transaction demarcation through AOP.
  *
  * @author Mark Paluch
+ * @author Juergen Hoeller
  * @since 5.2
  * @see org.springframework.transaction.interceptor.TransactionProxyFactoryBean
  */
@@ -43,7 +42,7 @@ public interface ReactiveTransactionManager {
 	 * <p>An exception to the above rule is the read-only flag, which should be
 	 * ignored if no explicit read-only mode is supported. Essentially, the
 	 * read-only flag is just a hint for potential optimization.
-	 * @param definition the TransactionDefinition instance (can be empty for defaults),
+	 * @param definition the TransactionDefinition instance,
 	 * describing propagation behavior, isolation level, timeout etc.
 	 * @return transaction status object representing the new or current transaction
 	 * @throws TransactionException in case of lookup, creation, or system errors
@@ -55,7 +54,7 @@ public interface ReactiveTransactionManager {
 	 * @see TransactionDefinition#getTimeout
 	 * @see TransactionDefinition#isReadOnly
 	 */
-	Mono<ReactiveTransactionStatus> getTransaction(@Nullable TransactionDefinition definition) throws TransactionException;
+	Mono<ReactiveTransactionStatus> getTransaction(TransactionDefinition definition) throws TransactionException;
 
 	/**
 	 * Commit the given transaction, with regard to its status. If the transaction

spring-tx/src/main/java/org/springframework/transaction/ReactiveTransactionStatus.java

@@ -5,7 +5,7 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -16,8 +16,6 @@
 
 package org.springframework.transaction;
 
-import reactor.core.publisher.Mono;
-
 /**
  * Representation of the status of a transaction exposing a reactive
  * interface.
@@ -27,6 +25,7 @@
  * an exception that causes an implicit rollback).
  *
  * @author Mark Paluch
+ * @author Juergen Hoeller
  * @since 5.2
  * @see #setRollbackOnly()
  * @see ReactiveTransactionManager#getTransaction
@@ -45,10 +44,10 @@ public interface ReactiveTransactionStatus {
 	 * that the only possible outcome of the transaction may be a rollback, as
 	 * alternative to throwing an exception which would in turn trigger a rollback.
 	 * <p>This is mainly intended for transactions managed by
-	 * {@link org.springframework.transaction.reactive.support.TransactionalOperator} or
-	 * {@link org.springframework.transaction.interceptor.ReactiveTransactionInterceptor},
+	 * {@link org.springframework.transaction.reactive.TransactionalOperator} or
+	 * {@link org.springframework.transaction.interceptor.TransactionInterceptor},
 	 * where the actual commit/rollback decision is made by the container.
-	 * @see org.springframework.transaction.reactive.support.ReactiveTransactionCallback#doInTransaction
+	 * @see org.springframework.transaction.reactive.ReactiveTransactionCallback#doInTransaction
 	 * @see org.springframework.transaction.interceptor.TransactionAttribute#rollbackOn
 	 */
 	void setRollbackOnly();
@@ -59,20 +58,12 @@ public interface ReactiveTransactionStatus {
 	 */
 	boolean isRollbackOnly();
 
-	/**
-	 * Flush the underlying session to the datastore, if applicable.
-	 * <p>This is effectively just a hint and may be a no-op if the underlying
-	 * transaction manager does not have a flush concept. A flush signal may
-	 * get applied to the primary resource or to transaction synchronizations,
-	 * depending on the underlying resource.
-	 */
-	Mono<Void> flush();
-
 	/**
 	 * Return whether this transaction is completed, that is,
 	 * whether it has already been committed or rolled back.
 	 * @see ReactiveTransactionManager#commit
 	 * @see ReactiveTransactionManager#rollback
 	 */
 	boolean isCompleted();
+
 }