#Transactional with handling error and db-inserts in catch block (Spring Boot) - spring-data-jpa

Question

I would like to rollback a transaction for the data in case of errors and at the same time write the error to db.
I can't manage to do with Transactional Annotations.
Following code produces a runtime-error (1/0) and still writes the data into the db. And also writes the data into the error table.
I tried several variations and followed similar questions in StackOverflow but I didn't succeed to do.
Anyone has a hint, how to do?
#Service
public class MyService{
#Transactional(rollbackFor = Exception.class)
public void updateData() {
try{
processAndPersist(); // <- db operation with inserts
int i = 1/0; // <- Runtime error
}catch (Exception e){
persistError()
trackReportError(filename, e.getMessage());
}
}
#Transactional(propagation = Propagation.REQUIRES_NEW)
public void persistError(String message) {
persistError2Db(message); // <- db operation with insert
}

Answer 1

You need the way to throw an exception in updateData() method to rollback a transaction. And you need to not rollback persistError() transaction at the same time.
#Transactional(rollbackFor = Exception.class)
public void updateData() {
try{
processAndPersist(); // <- db operation with inserts
int i = 1/0; // <- Runtime error
}catch (Exception e){
persistError()
trackReportError(filename, e.getMessage());
throw ex; // if throw error here, will not work
}
}
Just throwing an error will not help because persistError() will have the same transaction as updateData() has. Because persistError() is called using this reference, not a reference to a proxy.
Options to solve
Using self reference.
Using self injection Spring self injection for transactions
Move the call of persistError() outside updateData() (and transaction). Remove #Transactional from persistError() (it will not work) and use transaction of Repository in persistError2Db().
Move persistError() to a separate serface. It will be called using a proxy in this case.
Don't use declarative transactions (with #Transactional annotation). Use Programmatic transaction management to set transaction boundaries manually https://docs.spring.io/spring-framework/docs/3.0.0.M3/reference/html/ch11s06.html
Also keep in mind that persistError() can produce error too (and with high probability will do it).
Using self reference
You can use self reference to MyService to have a transaction, because you will be able to call not a method of MyServiceImpl, but a method of Spring proxy.
#Service
public class MyServiceImpl implements MyService {
public void doWork(MyService self) {
DataEntity data = loadData();
try {
self.updateData(data);
} catch (Exception ex) {
log.error("Error for dataId={}", data.getId(), ex);
self.persistError("Error");
trackReportError(filename, ex);
}
}
#Transactional
public void updateData(DataEntity data) {
persist(data); // <- db operation with inserts
}
#Transactional
public void persistError(String message) {
try {
persistError2Db(message); // <- db operation with insert
} catch (Exception ex) {
log.error("Error for message={}", message, ex);
}
}
}
public interface MyService {
void doWork(MyService self);
void updateData(DataEntity data);
void persistError(String message);
}
To use
MyService service = ...;
service.doWork(service);