service work

spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/FooDao.java

@@ -1,14 +1,66 @@
 package org.baeldung.spring.persistence.dao;
 
+import java.util.List;
+
+import org.baeldung.spring.persistence.model.Foo;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Repository;
 
+import com.google.common.base.Preconditions;
+
 @Repository
 public class FooDao implements IFooDao {
 
+    @Autowired
+    private SessionFactory sessionFactory;
+
     public FooDao() {
         super();
     }
 
     // API
 
+    @Override
+    public Foo findOne(final Long id) {
+        Preconditions.checkArgument(id != null);
+        return (Foo) getCurrentSession().get(Foo.class, id);
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public List<Foo> findAll() {
+        return getCurrentSession().createQuery("from " + Foo.class.getName()).list();
+    }
+
+    @Override
+    public void create(final Foo entity) {
+        Preconditions.checkNotNull(entity);
+        getCurrentSession().persist(entity);
+    }
+
+    @Override
+    public void update(final Foo entity) {
+        Preconditions.checkNotNull(entity);
+        getCurrentSession().merge(entity);
+    }
+
+    @Override
+    public void delete(final Foo entity) {
+        Preconditions.checkNotNull(entity);
+        getCurrentSession().delete(entity);
+    }
+
+    @Override
+    public void deleteById(final Long entityId) {
+        final Foo entity = findOne(entityId);
+        Preconditions.checkState(entity != null);
+        delete(entity);
+    }
+
+    protected final Session getCurrentSession() {
+        return sessionFactory.getCurrentSession();
+    }
+
 }

spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IFooDao.java

@@ -1,5 +1,21 @@
 package org.baeldung.spring.persistence.dao;
 
+import java.util.List;
+
+import org.baeldung.spring.persistence.model.Foo;
+
 public interface IFooDao {
-    //
+
+    Foo findOne(Long id);
+
+    List<Foo> findAll();
+
+    void create(Foo entity);
+
+    void update(Foo entity);
+
+    void delete(Foo entity);
+
+    void deleteById(Long entityId);
+
 }

spring-hibernate4/src/main/java/org/baeldung/spring/persistence/service/FooService.java

@@ -1,6 +1,7 @@
 package org.baeldung.spring.persistence.service;
 
 import org.baeldung.spring.persistence.dao.IFooDao;
+import org.baeldung.spring.persistence.model.Foo;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -10,7 +11,7 @@ import org.springframework.transaction.annotation.Transactional;
 public class FooService {
 
     @Autowired
-    private IFooDao fooDao;
+    private IFooDao dao;
 
     public FooService() {
         super();
@@ -18,4 +19,8 @@ public class FooService {
 
     // API
 
+    public void create(final Foo entity) {
+        dao.create(entity);
+    }
+
 }

spring-hibernate4/src/test/java/org/baeldung/spring/persistence/service/FooServicePersistenceIntegrationTest.java

@@ -1,7 +1,10 @@
 package org.baeldung.spring.persistence.service;
 
 import org.baeldung.spring.persistence.config.PersistenceConfig;
+import org.baeldung.spring.persistence.model.Foo;
+import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.support.AnnotationConfigContextLoader;
@@ -9,5 +12,20 @@ import org.springframework.test.context.support.AnnotationConfigContextLoader;
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration(classes = { PersistenceConfig.class }, loader = AnnotationConfigContextLoader.class)
 public class FooServicePersistenceIntegrationTest {
-    //
+
+    @Autowired
+    private FooService service;
+
+    // tests
+
+    @Test
+    public final void whenContextIsBootstrapped_thenNoExceptions() {
+        //
+    }
+
+    @Test
+    public final void whenEntityisCreated_thenNoExceptions() {
+        service.create(new Foo());
+    }
+
 }