topic Re: How transactions work in Activiti in Alfresco Archive

How transactions work in Activiti

birju — Thu, 10 Jul 2014 23:06:40 GMT

looking at someone legacy code. If transaction is configured into a config file <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean>And one of the APIs has f

Re: How transactions work in Activiti

martin_grofcik — Fri, 11 Jul 2014 04:31:01 GMT

Hi,

it depends on transaction propagation level set in CommandConfig. e.g. for spring


  @Override
  protected void initDefaultCommandConfig() {
    if (defaultCommandConfig == null) {
      defaultCommandConfig = new CommandConfig().setContextReusePossible(true);
    }
  }

By default TransactionPropagation.REQUIRED

More info:
http://www.activiti.org/userguide/#N1094F

Regards
Martin

Re: How transactions work in Activiti

birju — Fri, 11 Jul 2014 14:13:24 GMT

Since it's using default which like you said is TransactionPropogation.REQUIRED still don't following two calls run into separate transactions?

<code>
def insertUser(user:User) = {
val user = identityService.newUser(user.id.toString)
identityService.saveUser(user)

}
</code>
The way I understand Propogation.REQUIRED is that if let's say identityService.newUser was calling another transactional method within itself, then it'll use the same transaction.

particular usage of calling two separate methods in above code has no knowledge about combining the two into one transaction given they are distinct calls? Isn't that right?

Re: How transactions work in Activiti

martin_grofcik — Mon, 14 Jul 2014 05:31:40 GMT

Hi,


    try {
      User secondUser = identityService.newUser("testuser2");
      if (true)
        throw new RuntimeException();
      identityService.saveUser(secondUser);
      fail("Exception should have been thrown");
    } catch (RuntimeException re) {
    } 

    assertEquals(0, identityService.createUserQuery().userId("testuser2").count());

identityService.newUser("testuser2"); creates user object with Id set.
identityService.saveUser(secondUser); persists object into the DB.

Regards
Martin