Jpa saveall not updating spring boot

Jpa saveall not updating spring boot. 0 release. Apr 18, 2019 · From what i'm understanding, hibernate. I have a Spring Boot Application + JPA with MySQL. Saving an entity can be performed via the CrudRepository. Jul 16, 2019 · 1. merge()-Method will be called. This way, we can optimize the network and memory usage of our application. findOne (something. saveAll with the entire list seems to be the fastest. saveAll(listEntitiesToSave); voidMethod(savedEntities); return savedEntities; In this first case entities are stored immediately. Aug 4, 2017 · To workaround this, I have to inject/declare the EntityManager in the REST controller, and call the method EntityManager. We use static id's to save the data into database. private static final long serialVersionUID = 1L; @EmbeddedId. Save method is working fine on one entity. package com. Send the Batched Records. The saveAll is indeed doing the batch insert. ). 1. optimizer. CrudRepository has only save but it acts as update as well. For example @Entity @Table(name=&quot; Sep 15, 2017 · 2. During the update operation of the Record, I have to update field of RecordId i. JpaRepository overrides the saveAll () method to return a List instead of an Iterable: Jan 14, 2015 · 1. But what I found strange is that the save method is doing batch as well. Even batching the . I have 2 entity which are almost similar. In this tutorial, we’ll learn how we can batch insert and update entities using Hibernate/JPA. class) in case of JUnit 4. Jan 8, 2024 · 4. Jan 8, 2024 · 2. May 11, 2019 · I gone through forums but no luck, I didn't get any solution. You might also find Spring Batch handy, especially if there's another step needed to map the data onto the entities (e. That is , Id with same entity gets overwritten with new data. class) in case of junit 5 or @RunWith (MockitoJunit4ClassRunner. I have seen SO posts about batching with Data JPA but none of these worked. One in memory datasource for Spring Batch Metadatas and another or more datasources for jobs depending on configuration. Nov 27, 2020 · Spring Boot JPA+Hibernate low performance on SaveAll () I'm developing a REST application to load CSV files, insert them into DB (MYSQL - mysqld Ver 5. Whilst extending the base repository class and adding an insert method would work an more elegant solution appears to be implementing Persistable in the entities. It is just returning select statement. batch_size = 500. @ManyToOne(optional = false) // Telling hibernate trust me (As a trusted developer in this project) when building the query that the id provided to this entity is exists in database thus build the insert/update query right away without pre-checks. It ensures that Hibernate uses only the modified columns in the SQL statement that it generates for the update of an Jan 7, 2015 · This means you use the right find () method to get the object to update from the DB, overwrite only the non-null properties and then save the object. With save, changes won't necessary be flushed to DB immediately and might stay just in memory, until flush or commit commands are issued. And when I save Score entity, function with that annotation called, but changes, that I do in this function do not persist. Aug 19, 2019 · I am using Spring Boot and Spring Data JPA and Hibernate as the persistence provider. Jun 16, 2020 · spring. To save your object you need to setup proper jpa configurations and the repository after that it will be save. M1 according to the repo history, and the save method no longer takes as argument a list. PESSIMISTIC_WRITE allows us to obtain an exclusive lock and prevent the data from being read, updated or deleted. I have a csv file with more than 1 Million records. Sep 6, 2017 · I am using standard Spring CrudRepository. I have a list of Entity Bean for a table. What I've tried since now in the application. May 3, 2013 · The repository. as far as I know, if you save document again Jun 7, 2022 · What's the problem? We use the static ids for primary keys, We don't want auto-increment value as a primary key. Choose spring-boot-2-rest-service-basic as Artifact. Both entities contain composite keys. Add optional field equal false like following. Repository. Jan 26, 2018 · When dealing with Spring Data, when you call the save method on the Repository, that method could lead to the persistence provider invoking either the persist or merge operation depending upon whether the entity object is transient/new or whether its an existing, potentially detached, entity instance. jdbc. @Table(name = "tDownTime") public class DownTime {. @Autowired. Launch Spring Initializr and choose the following. Dec 22, 2010 · Add a comment. save (requestEntity). However executing Spring's CrudRepository#save method I'm getting next: ONLY Selects are logged by hibernate. Entity (dynamicInsert = true) add this on the class 2. id. There are two mechanisms used by Spring to decide if it must use Insert or Update on an entity: By default, Spring inspects the Id-Property ( @Id) of the entity, to figure out if the entity is new or not. In the create variant it needs to return an instance with a updated ID value. persistence. domain; import javax. spring. convert update object (source) to Map. I have a use-case (most common i guess), where i have to insert 300k records, which is everyday refresh, i have used spring jpa save (using batch), currently it is taking more than 1hr to save all records. I am trying to batch delete n objects with JPA repository deleteAll (List entities), and it works. I'm using JPA save and saveAll to save entities on my application. saveAll with even 30k elements took 4 seconds. hbm2ddl. Link to Spring Data documentation. Below is the configuration and using JpaRepository's saveAll(collection) method. Aug 7, 2018 · My Spring boot app is using Hibernate JPA to save records to MySQL. With saveAndFlush, changes will be flushed to DB immediately. saveAll calls to sublists of 50 took 10 seconds with 30k. pooled. I'm using the below code to do that. Figured out after debugging the issue for few hours. Check your dependencies; you're likely using an older version. First make an interface for your generic repo: @NoRepositoryBean. If you want your relationship unidirectional i. Fill all details (GroupId – springdatasaveall, ArtifactId – springdatasaveall and name Jun 20, 2022 · Copy. When you do save on entity with existing id it will do an update that means that after you used findById for example and changed something in your object, you can call save on this object and it will actually Aug 27, 2020 · This is not about Spring Boot at all. Nov 20, 2020 · Spring Data JPA save only if doesnt exist. 5, Jpa Repository save() doesn't update existing data. Driver. As the name depicts, the saveAll () method allows us to save multiple entities to the DB. You can simply save multiple FullPack like so. Jun 12, 2020 · I am trying to save/update an entity by using spring data JPA. Since you're using Spring: unless you're explicitly building your own JpaRepository implementation, calling saveAll from the default SimpleJpaRepository just does a for loop and calls save on every entity therein. Copy. Nov 22, 2019 · Asked 4 years, 3 months ago. Some of them already exist and some of them not. Open eclipse and create maven project, Don’t forget to check ‘Create a simple project (skip)’ click on next. save()-Method. – Delioth. I have noticed the behaviour of the save method performing the insert as a batch when setting spring. 5; MongoDB 3. I have scenario where I need to fetch all the records and then update them after modification. Also , you have to make sure the corresponding ID sequence in PostreSQL is aligned with the configuration in @SequenceGenerator : alter sequence emp_id_seq increment by 100; Another tip is to add reWriteBatchedInserts=true in the JDBC connection string which will Jul 13, 2021 · JPA Hibernate deleteAll (List<T> entities) not working as expected. Apr 12, 2018 · It just looks like MongoDB is waiting for some kind of flush(), but this is not a JPA repository where one could call saveAndFlush() instead. Software versions. 今回は前回のコードをベースに、データの CRUD（Create, Read, Update, Delete）操作を行う api を作ります. When I read about, it seems the @prepersist annotations does not work for session. setVersion(recordData. auto to create-drop, this will cause your schema to be recreated each time you restart your service, but I not sure if it's exactly what you want since it will also drop all your data. List<Entity> savedEntities = entityRepo. After working good and fast, the save() suddenly started to work very very slowly: about 10 minutes for inserting 1K records (the primary key is the ID). saveAll(users) and even when there is an User entity with Id already existing , the User entity gets overwritten. I want to do some processing on these records and persist all records in DB. save(order); Sep 3, 2020 · Spring boot JPA batch inserts Exception Handling. getVersion()); recordRepository. I found a code in project. To deal with this, Spring Data Cassandra must be using a BATCH (or something like it) behind the scenes. Oct 7, 2021 · Modified 2 years, 3 months ago. Save method not working on another entity. It belongs to the CrudRepository interface defined by Spring Data. Jun 5, 2018 · I'm trying to configure Spring Boot and Spring Data JPA in order to make bulk insert in a batch. Add a comment. @Id. May 23, 2020 · Spring boot data + Oracle = batch update of entities not working. After that, all those attributes won't be updated anymore, even if the transaction hasn't been flushed. If inserted, I am removing through JpaRepository delete (downtimeId). private Car car; Jul 26, 2021 · JDBC batching is a protocol level optimization and is dependent on the driver support. The optimization usually comes from reusing the same server handle though and sending values in batches. This is working fine, but has to happen within a longer running Transaction, because the Connection to the Database needs to stay open. We solve this problem by defining multiple datasources. List<FullPack> newFullPack = fullPackRepository. I made sure to truncate my table before performing each test. Batch insert allows us to group multiple insert statements, and then send them to May 1, 2017 · Sorted by: 107. jpa. Viewed 2k times. Mar 14, 2018 · The entity is not updated on entity listener @PostPersist (Spring data jpa) I want to update PlayerStat entity every time I save Score entity. findByPackId(id); Saving an entity can be performed via the CrudRepository. I rely on Spring Data JPA to handle all transactions and I noticed a huge speed difference between this and my old configuration. 0. Attributes with updatable=false can only be set until the first time you have called . For example: I can do this. I recently switched my app to Spring Boot 2. Jan 18, 2014 · This can be useful in cases where you need to ensure that the data is immediately persisted to the database, rather than waiting for the transaction to commit. * saved entity as it was passed as parameter and add generated ID to it. Jul 28, 2019 · I am using spring-boot 2. class); remove null values using Java 8 streams. I am working on a real time use case that needs to load batch of messages into SQL server table with spring boot JPA adding all the model objects to the list and doing this for batch loads repository. 4. convert to-be-updated object (target to Map) as above. 1. springboot. Due to performance, I cannot do record by record inserts. First time it's working I’m fine, all data inserted into database. 0. driverClassName=org. @Service. User Enity Class. annotations. Mar 10, 2022 · 1. When you do save on entity with empty id it will do a save. Jan 8, 2024 · 1. 0; Database postgres 9. That’s especially the case for all update operations. I have extended my Repository interface with JPARepository. save, and I return the "created/updated" object. See Possible Solution 2. The saveAll () method returns a list of Iterable objects. Whenever I call this. But I've 2 different behaviour: first case : in a method that return the list of saved entities. I am trying to get some data from CSV file and then save it on start of the application. I have used batching, but it dint helped much, database is mariadb is there any better approach for this optimize save time. You can use JPA as you know and just use MapStruct like this in Spring to update only the non-null properties of the object from the DB: /**. Storing around 1000 elements was being done in around 6s and now it's taking over 25 seconds. datasource. RELEASE and spring data jpa. Sorted by: 8. Share. Overview. Here is the method I am using: orderRepository. I am using spring-data and hibernate for creating tables and inserting Data. 17; Entity to be saved Oct 24, 2017 · Everytime you save a new Project(), JPA will create a new object in the database. Aug 6, 2020 · I am working on an SpringBoot Project and Using the Spring JPA. Save all Entities one by one. The saveAll method in Spring Data is only available with Spring Data 2. Exactly CrudRepository#save method. To exclude null property values in the hibernate insert sql stmt use attribute dynamic-insert=true. The simple . I want to know what will happen when I call saveAll from my service layer and pass this List? Jun 9, 2018 · To get a bulk insert with Spring Boot and Spring Data JPA you need only two things: set the option spring. 3. Sep 26, 2020 · I am using Spring Data JPA to save a record to my database. save ()-Method. The target is: commit each N-records, not every single record when making repository. Sep 10, 2020 · Spring-data-jpa: batch inserts are not working 3 Spring Batch/Data JPA application not persisting/saving data to Postgres database when calling JPA repository (save, saveAll) methods Jan 29, 2021 · 2. There was no issue related to crud repository. Aug 30, 2015 · Have you tried using this scheme: add jackson data-bind dependency. @JoinColumn(name = "contact_id", nullable = false) Under your @OneToMany on your parent entity. Viewed 21k times. saveAll (list). private TablePK id; private String Name; private String country; //default serial version id, required for serializable classes. For updating an entity, you need to first bring that entity in the JPA context by fetching it from the database first like so. findById(baseEntity. Any ideas why this might be happening? EDIT: versions (as requested): Java 8; Spring Boot 1. Spring data JPA offers the following strategies to detect whether an entity is new or not. Modified 4 years, 3 months ago. generate_statistics = true. Jun 11, 2020 · 1. Save all entities in one GO. com Jan 8, 2024 · Overview. It will persist or merge the given entity using the underlying JPA EntityManager. userJpaRepository. Setup. Spring Data JPA's saveAll () method is a part of the CrudRepository interface. order_inserts=true. The saveAndFlush () Method. Generate log : 314694800 nanoseconds spent acquiring 1 JDBC connections; 0 nanoseconds spent releasing 0 JDBC connections; 54054998 nanoseconds spent preparing Apr 27, 2017 · The execution of select statement taking lots of time especially when I know that the records I am inserting are unique. refresh (something) (or I have to call a . auto set to update doesn't actually update already created tables, but will add new one without dropping your data. existingRecord. e. Insertion/update is not happening upon calling save method. May 4, 2018 · 21 1. can navigate from Contact to Phone's only, you need to add. * Mocks {@link JpaRepository#save(Object)} method to return the. @YannicKlem persisted entities are saved by Hibernate when a transaction is flushed, so no manual save () is necessary. Apr 28, 2020 · 1 Answer. Recently I upgraded my spring boot project from 1. Aug 19, 2022 · As shown in the image above, following steps have to be done. Thanks to JPA’s entity mappings and the managed lifecycle of all entity objects, you only need to change an attribute of an entity object. persist()-Method, otherwise the entityManager. データベースは ローカル環境に docker-compose で mysql コンテナを立ち上げる で May 16, 2016 · Spring JPA / Hibernate transaction force insert instead of update. I use mysql with hibernate and spring boot data jpa (spring-boot-starter-data-jpa and mysql-connector-java). It looks like: jpaRepository. With JPA, most, in not all Repository interfaces exposes a . * If ID could not be generated, it will be ignored. save () action. I can see in the debbuger that correct amount of data is passed to the saving method. I am trying to do a batch/bulk update using the CrudRespositories saveAll method however it seems that it does not work. save(existingRecord); But data is not getting updated in the database. getId()) . batch_size to appropriate value you need (for example: 20). You could change hibernate. save () method actually returns a new object like JPA entityManager. Aug 3, 2019 · I'm trying to do a batch insert (spring boot, jpa, hibernate) and when I look at the generated statistics, realized that it is still inserting them one by one instead as a batch . Here is my application. public interface GenericRepository<T extends BaseModel, Long> extends JpaRepository<T, Long> {} Then create your implementation: public class GenericRepositoryImpl<T extends BaseModel> extends SimpleJpaRepository<T, Long> implements GenericRepository<T, Long> {. -1. @DynamicUpdate is one such feature. So kindly check or post your source code in order to review it and find what is wrong (if the issue is not in your data). for example we have user entity and userRepository as below. public class MyService {. Batching allows us to send a group of SQL statements to the database in a single network call. When we use Spring Data JPA with Hibernate, we can use the additional features of Hibernate as well. From the docs . This is described in 11. However, if you flush the changes in transaction and do not commit them, the changes still won't be visible to the Spring Data JPA saveAll () Method Example. 5. After reading that note part, if you want to insert only new names in your table without changing the entity structure, you can do something like, Aug 21, 2020 · Steps to take: Annotate the class with either ExtendsWith (MockitoExtension. My downitme entity. Unlike save (), the saveAndFlush () method flushes the data immediately during the execution. The first step to increase the performance of bulk insert is using batch insert. show_sql feature. After running the application: See full list on baeldung. Nov 22, 2020 · 2. nullable = false IS VITAL if you want hibernate to populate the fk on the child table. In my controller, when I post an entity I am able to call to repository. hibernate. So I'm using a simple JpaRepository and the saveAll () method is called. saveAll () method that opens a path for you to save a collection. You'd be better off using plain JDBC. Here’s how we use it: employeeRepository. If the identifier property is null, then the entity will be assumed as new, otherwise as not new. merge () and the returned object is the one that will have the ID set. 32), and then query and show the records in JSON format. save(baseEntity)); As far as i understand, this method will not save/update entity in database, if entity already exists. Spring data JPA saves a new entity and updates an old entity. @PostMapping(value = "/{id}/update") I need to update the postgres DB with createdDate and updatedDate I tried using approach 1, But it is inserting null values. If the identifier property is null, then the entity is treated Apr 23, 2022 · To get a bulk insert with Sring Boot and Spring Data JPA you need only two things: set the option spring. use new Java 8 Map merge method to update target with source, i. The only reason why JPA does an update instead of insert is that the Primary Key already exists in your persistence layer or your table. Only that this solution raises some gotchas. Hibernate/JPA only access the database when it has to. @GeneratedValue(strategy=GenerationType. getId ()) method to have the complete persisted entity): @RestController. Any suggestions on what I'm doing wrong? Thanks, Timothy. This is what I have so far: orderRepository. ALTER TABLE customer ADD UNIQUE (email); Refactor save () method logic so that it checks if an entry exists in the database. When you are saving User user all the data of the current user object will update. url=jdbc:h2:mem:testdb. rest. In summary, the main difference between "save" and "save and flush" in Spring Data is that the latter immediately writes the pending changes to the database, while the former waits until Feb 23, 2018 · 3. No clue if this is a feature solely within Hibernate, or if this is described within the JPA specification as well. yml: saveAll () Method Overview. 6. Jan 17, 2022 · The problem is, that all of those attributes you want to update (calories, instant, name) have set their updatable=false. Map<String, Object> sourceMap = objMapper. 17; Entity to be saved Sep 6, 2017 · I am using standard Spring CrudRepository. Choose following dependencies. getRecordId(). Choose com. The gain might be too small for 1000 elements though. in28minutes. – Pavel Vlasov. Using below Config for Spring Data I'm trying to execute DML requests. Jul 15, 2020 at 10:12. When attempting to update a record, a new record is created instead even though the primary key is assigned a non-null value. public Customer saveCustomer(Customer savedCustomer) {. So doing a for loop and saving each thing is exactly the same performance as saveAll. The problem is MyEntity requestEntity; savedEntity = repositroy. saveAndFlush( new Employee ( 2L, "Alice" )); When using Spring Data JPA, most developers are used to letting Spring handle almost all database operations. Working example is here. hibernate. @Id // Primary key. 2. Therefore the insert is performed immediately. T gettId(); @Table(. I tried to browse the Spring Data source code but this is the By default Spring Data JPA inspects the identifier property of the given entity. version. Web. Jan 8, 2020 · Motivation: This article is useful for Implementing an optimal insert batching mechanism via saveAll() method. orElseGet(() -> jpaRepository. Sep 17, 2019 · Spring-Data JPARepository save method creates a duplicate Record. Below is one of the thread i found some information: Feb 10, 2015 · 33. AUTO) // automatically generated primary key. Oct 12, 2017 · Oct 12, 2017 at 11:14. But, when I look at the database, I see that the object is not updated. 7. Sample Data Model. Jan 12, 2023 · Spring boot Java JPA saveAll not saving all data. But, using the Spring Data built-in saveAll() for batching inserts is a solution that requires less code. 5 Modifying persistent objects. So I tried to use @PostPersist annotation. One of them might change entities, while the other won't. @org. I made the changes in the code and it works but it is very slow: 16. A JDBC driver may implement this by issuing individual statements. The problem is when I try to persist the records by using JPA repository SaveAll () method it takes a lot of time (~25s for 500 records Jan 26, 2020 · Let’s see an example of Spring Data CrudRepository saveAll () and findAll () Methods for create and get the entities. The id value gets generated by the database when the insert is performed. My English could be better. Oct 12, 2021 · Step 1: Hibernate Batch Insert. It allows for the bulk saving of multiple entities in a single batch. public void saveA(EntityA entityA) aRepository. 2. 150+ PERSISTENCE PERFORMANCE ITEMS THAT WILL ROCK YOUR APPSDescription: This article shows Sep 5, 2018 · RecordId has fields of version and date. sanjeev. 6; Windows 10; I also included BookData above. @Override. Feb 12, 2023 · 0. Jul 9, 2018 · Just a two cents from me on how to create JPA repository save method with generating random IDs for fields with @GeneratedValue. . order_inserts = true. properties: spring. inject the mock into the service by annotating a variable of the service with @InjectMocks. And so if one of your entity has an ID field not null, Spring will make Hibernate do an update (and so a SELECT before). No "insert" or "update" statements are being . The saveAll method has the following signature: <S extends T> Iterable<S> saveAll(Iterable<S> entities); You define an additional method with the same name, but a different signature. example as Group. If I do the batch update saveAll (List entities) I am getting expected Aug 30, 2019 · 前回、 spring boot で web api サーバを作る で文字列を返すだけの api を作りました. I tried few options like. A very crude Jun 8, 2017 · 6. The API of the spring data CrudRepository to save an iterable has changed form save() to saveAll(). save(entityB); Mar 6, 2020 · When you saveAll on 10000 Cars at once, there is no way you can guarantee that all 10000 of those are going to the same node. from a file). use saveAll () method of your repo with the list of entities prepared for inserting. 5 to 2. If any data is not in update form that means that data is null and for boolean it's false. My senior confirmed that if you give id as 0 then it indicates its a insert so it wont check for update and it will be faster Oct 2, 2018 · 2 Answers. The best way to do it is as in this article. Aug 18, 2021 · Instead of using a List<User>, I suggest you use a Set<User> and override hashCode() and equals() as per your requirements. Jul 1, 2021 · Hello! Wouldn't be possible to have concurrency issues if you have 2 instances of your application running at the same time? Let's say the record doesn't exist and then, at the same time, the updateDM method is called. create a StudentRepository Mock by annotating a variable of that type with @Mock. Aug 23, 2016 · 1 Answer. Sorted by: 1. batch_size=100. In the other case no information from the database is required. 6. Right now I am doing after saving object into database, checking whether duplicates are inserted or not. Jan 10, 2016 · I'm writing a code-gen tool to generate backend wiring code for Spring Boot applications using Spring Data JPA and it's mildly annoying me that the methods in the CrudRepository return Iterable rather than List, as Iterable doesn't provide quite enough functionality, but List does, so I'm looking for the best way to convert the Iterable into a Sep 26, 2015 · However, there is one thing you should notice:the method used to a save a list of elements has been renamed into <S extends T> List<S> saveAll(Iterable<S> entities) in 2. # for spring batch metadata. Otherwise, create a new one and insert it into the database. Id is not in requestEntity but in savedEntity. ) Jun 13, 2020 · In general, JPA is not the ideal choice for batch operations, as it introduces significant performance overhead. ds2Repository ds2Repository; // from data source 2 (DB Name - DB2) MYSQL. JPA specification defines three pessimistic lock modes that we’re going to discuss: PESSIMISTIC_READ allows us to obtain a shared lock and prevent the data from being updated or deleted. If it does, update the existing entry. Apr 19, 2021 · In my case my ID column was not incremental number, so spring data had to check whether its a update or a insert and then it used to do the insert. In this source code example, we will demonstrate how to use the saveAll () method in Spring Data JPA to save multiple entities into the database. h2. But at the end it produces n queries to the database instead of grouping elements by the batch size. save (. If the entity has not been persisted yet Spring Data JPA will save the entity via a call to the entityManager. I can save each one of them invidually but I do not see/know anyway I can achieve what I am looking for. Next, I changed the code for inserting, so that saveAll methods get batch sizes of 30 to insert as per what we also set in the properties file. Mar 2, 2019 · In a single service which is @Transactional I have to get the values from two tables and update them. @Entity. g. This method belongs to the JpaRepository interface of Spring Data JPA. save(order); Optional<Order> findByOrderId(UUID orderId); I want to modify this so it will Save or Update. Actually after upload method another service was updating the entity with null bill path at the same time so I was seeing the null column always. works good for smaller no of records. Everything else happens automatically. Apr 17, 2018 · Calling . But when i run saveAll () of the repo it will save only up to 348 rows to the DB while the file has over 400 rows in. properties. Edited. If it is a BATCH, that essentially puts one Cassandra node (designated as a "coordinator") to route writes to the Aug 28, 2019 · saveAll () was not included in v1 of spring-data-jpa and didn't make its way into Spring Boot until March 2018 with the 2. Oct 12, 2019 · I have a server using spring boot and spring data jpa. I don't see CrudRepository::saveAll in Spring Boot 1, but save (Iterable) presented. x with Spring Boot 1. Jan 31, 2021 · (I have a CSV file which has Id field which is read in User entity) So Id is not auto generated. preferred = pooled-lo. public List<FullPack> updatePack(FullPack fullPack, int id) {. @RestController @S Currently I am facing a problem with Spring-Data/Hibernate that I will introduce briefly. Jan 30, 2018 · 21 5. . save () is a dual purposed method for Insert as well as Update. From different threads i found that save method from JPARepository (From CRUDRepository) will only update the record if the record already exists. In xml mapping , use dynamic-insert=true attribute in class tag. I have two classes annotated with @RestController in my server. @DynamicUpdate is a class-level annotation that can be applied to a JPA entity. Lock Modes. jpaepository. So fetch the data from the database using id then set the new value in fetch user then save. My implementation is below. Feb 16, 2018 · Sorted by: 4. ds1Repository ds1Repository; // from data source 1 (DB Name - DB1) MYSQL. save (entities); This method takes forever and never compete. Oct 31, 2018 · If you look your exception closely you will find this out Duplicate entry for key 'PRIMARY' , Which means try to insert duplicate value in primary key column (product_id) of table (Product). *; @Entity(name = "user") @Table(name = "user") public class User {. @RequestMapping("/api") @Transactional. I am working on some simple Reporting functionality, that fetches Entities from a single table as Stream. Spring boot 2. convertValue (source, Map. save(entityA); public void saveB(EntityB entityB) bRepository. yc ql qz xv mq mq fw df qd bf