Switch MongoDB samples to records.

See #606.

mongodb/transactions/src/main/java/example/springdata/mongodb/Process.java

@@ -15,9 +15,6 @@
  */
 package example.springdata.mongodb;
 
-import lombok.AllArgsConstructor;
-import lombok.Data;
-
 import org.springframework.data.annotation.Id;
 import org.springframework.data.mongodb.core.mapping.Document;
 
@@ -25,13 +22,7 @@ import org.springframework.data.mongodb.core.mapping.Document;
  * @author Christoph Strobl
  * @currentRead The Core - Peter V. Brett
  */
-@Data
-@AllArgsConstructor
 @Document("processes")
-public class Process {
-
-	@Id Integer id;
-	State state;
-	int transitionCount;
+public record Process(@Id Integer id, State state, int transitionCount) {
 
 }

mongodb/transactions/src/main/java/example/springdata/mongodb/imperative/TransitionService.java

@@ -49,9 +49,9 @@ class TransitionService {
 	@Transactional
 	public void run(Integer id) {
 
-		Process process = lookup(id);
+		var process = lookup(id);
 
-		if (!State.CREATED.equals(process.getState())) {
+		if (!State.CREATED.equals(process.state())) {
 			return;
 		}
 
@@ -62,13 +62,13 @@ class TransitionService {
 
 	private void finish(Process process) {
 
-		template.update(Process.class).matching(Query.query(Criteria.where("id").is(process.getId())))
+		template.update(Process.class).matching(Query.query(Criteria.where("id").is(process.id())))
 				.apply(Update.update("state", State.DONE).inc("transitionCount", 1)).first();
 	}
 
 	void start(Process process) {
 
-		template.update(Process.class).matching(Query.query(Criteria.where("id").is(process.getId())))
+		template.update(Process.class).matching(Query.query(Criteria.where("id").is(process.id())))
 				.apply(Update.update("state", State.ACTIVE).inc("transitionCount", 1)).first();
 	}
 
@@ -77,6 +77,6 @@ class TransitionService {
 	}
 
 	void verify(Process process) {
-		Assert.state(process.getId() % 3 != 0, "We're sorry but we needed to drop that one");
+		Assert.state(process.id() % 3 != 0, "We're sorry but we needed to drop that one");
 	}
 }

mongodb/transactions/src/main/java/example/springdata/mongodb/reactive/ReactiveManagedTransitionService.java

@@ -52,21 +52,21 @@ public class ReactiveManagedTransitionService {
 
 		return lookup(id) //
 				.flatMap(process -> start(template, process)) //
-				.flatMap(it -> verify(it)) //
+				.flatMap(this::verify) //
 				.flatMap(process -> finish(template, process)) //
-				.map(Process::getId);
+				.map(Process::id);
 	}
 
 	private Mono<Process> finish(ReactiveMongoOperations operations, Process process) {
 
-		return operations.update(Process.class).matching(Query.query(Criteria.where("id").is(process.getId())))
+		return operations.update(Process.class).matching(Query.query(Criteria.where("id").is(process.id())))
 				.apply(Update.update("state", State.DONE).inc("transitionCount", 1)).first() //
 				.then(Mono.just(process));
 	}
 
 	Mono<Process> start(ReactiveMongoOperations operations, Process process) {
 
-		return operations.update(Process.class).matching(Query.query(Criteria.where("id").is(process.getId())))
+		return operations.update(Process.class).matching(Query.query(Criteria.where("id").is(process.id())))
 				.apply(Update.update("state", State.ACTIVE).inc("transitionCount", 1)).first() //
 				.then(Mono.just(process));
 	}
@@ -77,7 +77,7 @@ public class ReactiveManagedTransitionService {
 
 	Mono<Process> verify(Process process) {
 
-		Assert.state(process.getId() % 3 != 0, "We're sorry but we needed to drop that one");
+		Assert.state(process.id() % 3 != 0, "We're sorry but we needed to drop that one");
 		return Mono.just(process);
 	}
 

mongodb/transactions/src/main/java/example/springdata/mongodb/reactive/ReactiveTransitionService.java

@@ -56,19 +56,19 @@ public class ReactiveTransitionService {
 					.flatMap(it -> verify(it)) //
 					.flatMap(process -> finish(action, process));
 
-		}).next().map(Process::getId);
+		}).next().map(Process::id);
 	}
 
 	private Mono<Process> finish(ReactiveMongoOperations operations, Process process) {
 
-		return operations.update(Process.class).matching(Query.query(Criteria.where("id").is(process.getId())))
+		return operations.update(Process.class).matching(Query.query(Criteria.where("id").is(process.id())))
 				.apply(Update.update("state", State.DONE).inc("transitionCount", 1)).first() //
 				.then(Mono.just(process));
 	}
 
 	Mono<Process> start(ReactiveMongoOperations operations, Process process) {
 
-		return operations.update(Process.class).matching(Query.query(Criteria.where("id").is(process.getId())))
+		return operations.update(Process.class).matching(Query.query(Criteria.where("id").is(process.id())))
 				.apply(Update.update("state", State.ACTIVE).inc("transitionCount", 1)).first() //
 				.then(Mono.just(process));
 	}
@@ -79,7 +79,7 @@ public class ReactiveTransitionService {
 
 	Mono<Process> verify(Process process) {
 
-		Assert.state(process.getId() % 3 != 0, "We're sorry but we needed to drop that one");
+		Assert.state(process.id() % 3 != 0, "We're sorry but we needed to drop that one");
 		return Mono.just(process);
 	}
 }

mongodb/transactions/src/test/java/example/springdata/mongodb/imperative/TransitionServiceTests.java

@@ -88,13 +88,13 @@ public class TransitionServiceTests {
 	@Test
 	public void txCommitRollback() {
 
-		for (int i = 0; i < 10; i++) {
+		for (var i = 0; i < 10; i++) {
 
-			Process process = transitionService.newProcess();
+			var process = transitionService.newProcess();
 
 			try {
 
-				transitionService.run(process.getId());
+				transitionService.run(process.id());
 				Assertions.assertThat(stateInDb(process)).isEqualTo(State.DONE);
 			} catch (IllegalStateException e) {
 				Assertions.assertThat(stateInDb(process)).isEqualTo(State.CREATED);
@@ -107,7 +107,7 @@ public class TransitionServiceTests {
 
 	State stateInDb(Process process) {
 
-		return State.valueOf(client.getDatabase(DB_NAME).getCollection("processes").find(Filters.eq("_id", process.getId()))
+		return State.valueOf(client.getDatabase(DB_NAME).getCollection("processes").find(Filters.eq("_id", process.id()))
 				.projection(Projections.include("state")).first().get("state", String.class));
 	}
 

mongodb/transactions/src/test/java/example/springdata/mongodb/reactive/ReactiveManagedTransitionServiceTests.java

@@ -86,9 +86,9 @@ public class ReactiveManagedTransitionServiceTests {
 	@Test
 	public void reactiveTxCommitRollback() {
 
-		for (int i = 0; i < 10; i++) {
+		for (var i = 0; i < 10; i++) {
 			managedTransitionService.newProcess() //
-					.map(Process::getId) //
+					.map(Process::id) //
 					.flatMap(managedTransitionService::run) //
 					.onErrorReturn(-1).as(StepVerifier::create) //
 					.consumeNextWith(val -> {}) //
@@ -100,7 +100,7 @@ public class ReactiveManagedTransitionServiceTests {
 				.as(StepVerifier::create) //
 				.consumeNextWith(list -> {
 
-					for (Document document : list) {
+					for (var document : list) {
 
 						System.out.println("document: " + document);
 

mongodb/transactions/src/test/java/example/springdata/mongodb/reactive/ReactiveTransitionServiceTests.java

@@ -76,9 +76,9 @@ public class ReactiveTransitionServiceTests {
 	@Test
 	public void reactiveTxCommitRollback() {
 
-		for (int i = 0; i < 10; i++) {
+		for (var i = 0; i < 10; i++) {
 			transitionService.newProcess() //
-					.map(Process::getId) //
+					.map(Process::id) //
 					.flatMap(transitionService::run) //
 					.onErrorReturn(-1).as(StepVerifier::create) //
 					.consumeNextWith(val -> {}) //
@@ -90,7 +90,7 @@ public class ReactiveTransitionServiceTests {
 				.as(StepVerifier::create) //
 				.consumeNextWith(list -> {
 
-					for (Document document : list) {
+					for (var document : list) {
 
 						System.out.println("document: " + document);