Use @ transactional to control transactions in grails services

Grails services use Boolean transactional = true to add transactions for each method in the service. The default propagation mode of transactions is propagation. required, readonly = false, cannot be modified. If some methods in the service need read-only transactions, this method cannot meet the requirements. Because the grails service is a bean, you can use spring's Annotation transaction @ transactional to configure the transaction of the service method, and you can configure the transaction attributes in fine granularity, however, you must add an interface for the Service to use @ transactional. Example:

Public interface service {

Void Foo ();

}

Import org. springframework. transaction. annotation. transactional

Class fooservice implements Service {

@ Transactional (readonly = false)

Public void Foo (){}

}