Use GORM Data Service

build.gradle

@@ -27,7 +27,7 @@ dependencies {
     compile localGroovy()
 
     compile group: 'javax.servlet', name: 'servlet-api', version: '2.5'
-    compile group: 'org.grails', name: 'grails-datastore-gorm-hibernate5', version: '6.0.12.RELEASE'
+    compile group: 'org.grails', name: 'grails-datastore-gorm-hibernate5', version: '6.1.8.RELEASE'
     runtime "com.h2database:h2:1.4.192"
     runtime "org.apache.tomcat:tomcat-jdbc:8.5.0"
     runtime "org.apache.tomcat.embed:tomcat-embed-logging-log4j:8.5.0"

src/main/groovy/com/foo/utils/EntityInitializerUtils.groovy

@@ -20,7 +20,7 @@ class EntityInitializerUtils {
 //    @Transactional
     void initializeDomains() {
         Map configuration = [
-//                'hibernate.hbm2ddl.auto':'create-drop',
+                'hibernate.hbm2ddl.auto':'create-drop',
 //                'hibernate.enable_lazy_load_no_trans':false,
                 'dataSource.url':'jdbc:h2:mem:myDB',
 //                'dataSource.pooled':true,
@@ -30,6 +30,9 @@ class EntityInitializerUtils {
         ]
         HibernateDatastore datastore = new HibernateDatastore( configuration, User)
 
-        println User.count()
+        // In a real app you would probably have this injected and not have to retrieve it yourself...
+        UserService userService = datastore.getService(UserService)
+
+        println userService.count()
     }
 }

src/main/groovy/com/foo/utils/UserService.groovy

@@ -0,0 +1,11 @@
+package com.foo.utils
+
+import com.foo.user.User
+import grails.gorm.services.Service
+
+@Service(User)
+interface UserService {
+    int count()
+
+    User saveUser(User user)
+}