Table of contents

1. Grails Notes
   1. Access to session and hibernate-
      1. getting session-
   2. -get hibernate datastore in session-
      1. -Get hibernatedatasource-
      2. -get table columns-
      3. -get data bindings/properties/class/domain table/declared fields-
      4. Get A Service

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Grails Notes

Access to session and hibernate-

getting session-

def sessionFactory

def session = sessionFactory?.getCurrentSession()

RequestContextHolder.currentRequestAttributes().getSession()

-get hibernate datastore in session-

-Get hibernatedatasource-

hibernate datastore ex.

public class HibernateExample {
    @Autowired
    HibernateDatastore hibernateDatastore;

    @Autowired
    DatabaseProvisioningService databaseProvisioningService;

    @Listener(User)
    void onUserPostInsertEvent(PostInsertEvent event) {
        String username = event.getEntityAccess().getPropertyValue("username");
        DatabaseConfiguration databaseConfiguration = databaseProvisioningService.findDatabaseConfigurationByUsername(username);
        hibernateDatastore.getConnectionSources().addConnectionSource(databaseConfiguration.dataSourceName, databaseConfiguration.configuration);
    }
}

-get table columns-

hibernateDatastore.getSessionFactory().getClassMetadata(GroupCompare).getProperties().sort()

ctx.sessionFactory.getClassMetadata(Team).attributes.collect { it.name }

-get data bindings/properties/class/domain table/declared fields-

def mapping = org.grails.orm.hibernate.cfg.GrailsDomainBinder.getMapping(UserGroup)

def mapping = org.grails.orm.hibernate.cfg.GrailsDomainBinder.getMapping(UserGroup)

org.grails.orm.hibernate.cfg.GrailsDomainBinder.getMapping(groupCompare.class).class.declaedFields

Get A Service

1.      public class HibernateExample {
   
       @Autowired
       HibernateDatastore hibernateDatastore;
       UserDataService userDataService;
   
       UserService(HibernateDatastore hibernateDatastore) {
           this.userDataService = hibernateDatastore.getService(UserDataService);
       }
    }
   

2.  (YourService)Holders.grailsApplication.mainContext["yourService"]
   

3.  applicationContext."${yourServiceName}".serviceMethod()
   

4.  ctx.getBean("userGroupService")
   

5.  Holders.applicationContext.getBean("myService")
   

   class HibernateExample {

    ApplicationContext ctx = (ApplicationContext) ServletContextHolder
            .getServletContext()
            .getAttribute(GrailsApplicationAttributes
                    .APPLICATION_CONTEXT)

    def statisticsService = (StatisticsService).ctx.getBean("statisticsService ")
}