Retry after Spring throws DataAccessException not working
I am facing a very peculiar situation. I am using hibernate template with spring 3.0.5 for DB operations. When I try to insert a User model the first time, a DataAccessException is thrown, which I catch. Now I wish to retry the same DB operation for say 3 times. The second time when it, no exception is thrown.
Here is the code:
package com.user.profile.dao;
@Repository("userProfileDAOImpl")
public class UserProfileDAOImpl implements IUserProfileDAO {
@Autowired
private HibernateTemplate hibernateTemplate;
public Long insertUserProfileData(User user) throws AppNonFatalException {
Long id = null;
int retryCount = 0;
while (retryCount < 3) {
try {
id = (Long)hibernateTemplate.save(user);
}
catch (DataAccessException e) {
e.printStackTrace();
retryCount++;
System.out.println("Retry Count = " + retryCount);
if (retryCount > 3) {
throw new AppNonFatalException(e.getLocalizedMessage(), "10000", e.getMessage(), e);
}
}
c开发者_运维技巧atch (Exception e) {
/* not coming inside this block too second time onwards */
System.out.println("Pure Exception");
}
}
return id;
}
}
I read that RuntimeExceptions should not be caught. Then how do I retry the operation. Should I retry at the service layer? Am I missing something? Any help is appreciated.
From https://community.oracle.com/docs/DOC-983543:
Unchecked exceptions are exceptions that do not need to be declared in a throws clause. They extend RuntimeException. An unchecked exception indicates an unexpected problem that is probably due to a bug in the code.
Since DataAccessException
is a RuntimeException
, you might want to check what is the real cause of the exception and fix it instead of catching it and retry the operation.
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