6 09 hibernate cache

pom.xml

@@ -107,6 +107,11 @@
             <artifactId>hibernate-validator</artifactId>
             <version>${hibernate-validator.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-jcache</artifactId>
+            <version>${hibernate.version}</version>
+        </dependency>
 
         <!--http://hibernate.org/validator/documentation/getting-started/#unified-expression-language-el-->
         <dependency>

src/main/java/ru/javawebinar/topjava/model/User.java

@@ -1,6 +1,8 @@
 package ru.javawebinar.topjava.model;
 
 import org.hibernate.annotations.BatchSize;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
 import org.hibernate.validator.constraints.Range;
 import org.springframework.util.CollectionUtils;
 
@@ -13,6 +15,7 @@
 
 import static ru.javawebinar.topjava.util.MealsUtil.DEFAULT_CALORIES_PER_DAY;
 
+@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
 @NamedQueries({
         @NamedQuery(name = User.DELETE, query = "DELETE FROM User u WHERE u.id=:id"),
         @NamedQuery(name = User.BY_EMAIL, query = "SELECT u FROM User u LEFT JOIN FETCH u.roles WHERE u.email=?1"),
@@ -45,6 +48,7 @@ public class User extends AbstractNamedEntity {
     @NotNull
     private Date registered = new Date();
 
+    @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
     @Enumerated(EnumType.STRING)
     @CollectionTable(name = "user_roles", joinColumns = @JoinColumn(name = "user_id"))
     @Column(name = "role")

src/main/java/ru/javawebinar/topjava/repository/JpaUtil.java

@@ -0,0 +1,22 @@
+package ru.javawebinar.topjava.repository;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+
+public class JpaUtil {
+
+    @PersistenceContext
+    private EntityManager em;
+
+    public void clear2ndLevelHibernateCache() {
+        Session s = (Session) em.getDelegate();
+        SessionFactory sf = s.getSessionFactory();
+//        sf.evict(User.class);
+//        sf.getCache().evictEntity(User.class, BaseEntity.START_SEQ);
+//        sf.getCache().evictEntityRegion(User.class);
+        sf.getCache().evictAllRegions();
+    }
+}

src/main/resources/spring/spring-db.xml

@@ -64,6 +64,15 @@
                     <entry key="#{T(org.hibernate.cfg.AvailableSettings).USE_SQL_COMMENTS}"
                            value="${hibernate.use_sql_comments}"/>
                     <!--<entry key="#{T(org.hibernate.cfg.AvailableSettings).HBM2DDL_AUTO}" value="${hibernate.hbm2ddl.auto}"/>-->
+
+                    <!--https://github.com/hibernate/hibernate-orm/blob/master/documentation/src/main/asciidoc/userguide/chapters/caching/Caching.adoc#caching-provider-jcache-->
+                    <entry key="#{T(org.hibernate.cfg.AvailableSettings).CACHE_REGION_FACTORY}"
+                           value="org.hibernate.cache.jcache.internal.JCacheRegionFactory"/>
+                    <entry key="#{T(org.hibernate.cache.jcache.ConfigSettings).PROVIDER}"
+                           value="org.ehcache.jsr107.EhcacheCachingProvider"/>
+                    <entry key="#{T(org.hibernate.cfg.AvailableSettings).USE_SECOND_LEVEL_CACHE}" value="true"/>
+                    <entry key="#{T(org.hibernate.cfg.AvailableSettings).USE_QUERY_CACHE}"
+                           value="false"/> <!--default-->
                 </map>
             </property>
 
@@ -78,6 +87,8 @@
         <!-- Transaction manager for a single JPA EntityManagerFactory (alternative to JTA) -->
         <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"
               p:entityManagerFactory-ref="entityManagerFactory"/>
+
+        <bean class="ru.javawebinar.topjava.repository.JpaUtil"/>
     </beans>
 
     <beans profile="jpa">

src/test/java/ru/javawebinar/topjava/service/AbstractUserServiceTest.java

@@ -7,6 +7,7 @@
 import org.springframework.dao.DataAccessException;
 import ru.javawebinar.topjava.model.Role;
 import ru.javawebinar.topjava.model.User;
+import ru.javawebinar.topjava.repository.JpaUtil;
 import ru.javawebinar.topjava.util.exception.NotFoundException;
 
 import javax.validation.ConstraintViolationException;
@@ -24,9 +25,13 @@ public abstract class AbstractUserServiceTest extends AbstractServiceTest {
     @Autowired
     private CacheManager cacheManager;
 
+    @Autowired
+    protected JpaUtil jpaUtil;
+
     @Before
     public void setUp() throws Exception {
         cacheManager.getCache("users").clear();
+        jpaUtil.clear2ndLevelHibernateCache();
     }
 
     @Test