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1 answer
253 views

I am using Spring Boot 3.5 and have added an @Version field to my entity. This all works fine, but I wonder how I need to handle concurrent updates coming from the REST API. Suppose 2 users have my ...
0 votes
0 answers
30 views

optimistic lock and isolation levels have the same concepts in integrity of transactions. my question is when i should use different isolation levels instead of optimistic locking for achieving ...
2 votes
1 answer
147 views

I'm trying to solve a problem with optimistic locks in jpa and hibernate for parent entity with associations. I need to increment the version of parent when child entity is changed or a new child ...
1 vote
0 answers
100 views

Use Case Users can copy a subset of entities and their object graphs from a main SQLite database to an archive SQLite database, preserving IDs and relationships (1-to-1 copy). After migrating from ...
0 votes
0 answers
124 views

I'm trying to implement Optimistic Locking with Redis Lettuce client in Java Reactive according to this article: https://github.com/redis/lettuce/wiki/Reactive-API#other-examples. I got 2 approaches, ...
0 votes
0 answers
36 views

All entity with @version During saving, have next error could not execute statement [Not found 3 param.] [update cons_data.e_fin_form set version=? where id=? and report_type=? and version=?]; SQL [...
6 votes
1 answer
4k views

I'm working on a Spring Boot application where I create an order using a createOrder method. Everytime, I encounter the following error: OrderService public class OrderService { OrderRepository ...
-1 votes
1 answer
299 views

Gone through all the code bit by bit but just can't find what is wrong, if I make postman getUsers request it works fine, but when I make the POST request I get the error: ERROR 7388 --- [...
1 vote
0 answers
55 views

I am using jpa in my spring boot application (postgres) and have some entity called car. In the beginning cars are created without assignedUser field in database. Then trough certain process (post ...
1 vote
0 answers
93 views

I was experimenting with optimistic locks and wrote this for hset, under heavy load of events trying to update the same key, observed TxFailedErr(redis: transaction failed) from redis client which is ...
2 votes
4 answers
528 views

We have a business application which uses Spring Boot, Hibernate, and an underlying Oracle Database (H2 database for tests). Users make a lot of simultaneous requests to it. To cope with the many ...
-2 votes
1 answer
112 views

I am trying to implement a simple mutex lock in SQL. My tentative solution is the following: query = 'UPDATE my_table SET lock_field = 1 WHERE lock_field = 0 AND mutex_id = 17' if (query.execute() == ...
1 vote
0 answers
50 views

I am trying to make a booking system, where users can book a booking at a location for a certain time period. The problem I am having is, 2 entries that happen at the same time and overlap in the time ...
0 votes
1 answer
19 views

I wrote a JPA repository and a entity with version field to support optimistic locking. @Version var version: Long? = null I wrote a test, which simulates concurrent update and delete and ...
0 votes
1 answer
66 views

I'm tryng to get more into Optimistic Lock and in detail, verifyng with a test, that my implementation it's correct. The implementation it's with Java 11, SpringBoot and Maven interacting with a ...

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