Spring JpaRepository: delete() with subsequent save() in the same transaction

Spring JpaRepository: delete() with subsequent save() in the same transaction

By : Funnyboyz Cfc
Date : November 22 2020, 10:56 AM
Hope that helps Because repository.flush() flushes the changes to the database by calling EntityManager.flush(). So when you flush the changes after delete(), sql gets executed and the following save will have no problems.
If you don't call flush it is up to persistence provider to determine when to flush the changes with transaction commit time being the deadline. Also providers don't flush changes in any particular order, so it may happen that sometimes your operation succeeds and sometimes it doesn't. Usually, providers wait until the commit time flush, but you can influence that by setting a flush mode:
code :
for entitymanager
EntityManager.setFlushMode(FlushModeType type);

or for query
Query.setFlushMode(FlushModeType type);

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Spring Boot JPARepository performance on save()

Spring Boot JPARepository performance on save()

By : Mateusz
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Instead of creating a list of elements and saving those, save the individual elements. Every now an then do a flush and clear to prevent dirty checking to become a bottleneck.
code :
private EntityManager entityManager;

public void processData(List<sElement> hostElements) 
throws DataAccessException {     

for (int i = 0; i < hostElements.size(); i++) {
        Element element = new Element();
        if ( (i % 50) == 0) {
entityManager.flush(); // flush the last records.
Spring JPA no @Transnational on save JpaRepository

Spring JPA no @Transnational on save JpaRepository

By : elmario
Date : March 29 2020, 07:55 AM
How to rollback outer transaction in case of failed inner transaction in but inner transaction should save data Spring

How to rollback outer transaction in case of failed inner transaction in but inner transaction should save data Spring

By : user2768898
Date : March 29 2020, 07:55 AM
To fix this issue Configure the inner transactional method as Propagation.REQUIRES_NEW such that it will always commit (i.e save the data) when the method completes whether the outer transactional method rollbacks or not.
Also, make sure outer method does not self invocation the inner method as @Transactional does not work in this case (See Method visibility and @Transactional section in docs).
code :
public class Service1 {

    private Service2 service2;

    public void test1(Account account) throws Exception {
        status = service2.test2(account);
            throw new Exception("Api call failed");

public class Service2{

    public void test2(Account account) {
        response // API Call
        return response.status;
Save, delete and update within a single transaction in Spring Data JPA

Save, delete and update within a single transaction in Spring Data JPA

By : thinker
Date : March 29 2020, 07:55 AM
To fix the issue you can do As @JB Nizet already states in his comment, this is the exact purpose of @Transactional, so it will all be in one transaction. But ensure that you call the method from another bean and not from another method in the same class! As you already indicated, transactional doesn't work then.
Spring JpaRepository save() does not mock using Mockito

Spring JpaRepository save() does not mock using Mockito

By : Dimitar Spirrov
Date : March 29 2020, 07:55 AM
Any of those help You setup your mock to return something when it receives a given device objet:
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