diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IChildDao.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IChildDao.java
new file mode 100644
index 0000000000..0a2180bed3
--- /dev/null
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IChildDao.java
@@ -0,0 +1,8 @@
+package org.baeldung.spring.persistence.dao;
+
+import org.baeldung.spring.persistence.dao.common.IOperations;
+import org.baeldung.spring.persistence.model.Child;
+
+public interface IChildDao extends IOperations<Child> {
+    //
+}
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IFooDao.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IFooDao.java
index eea1f17b5a..646b3af228 100644
--- a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IFooDao.java
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IFooDao.java
@@ -1,5 +1,6 @@
 package org.baeldung.spring.persistence.dao;
 
+import org.baeldung.spring.persistence.dao.common.IOperations;
 import org.baeldung.spring.persistence.model.Foo;
 
 public interface IFooDao extends IOperations<Foo> {
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IOwnerDao.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IOwnerDao.java
new file mode 100644
index 0000000000..beda164935
--- /dev/null
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IOwnerDao.java
@@ -0,0 +1,8 @@
+package org.baeldung.spring.persistence.dao;
+
+import org.baeldung.spring.persistence.dao.common.IOperations;
+import org.baeldung.spring.persistence.model.Owner;
+
+public interface IOwnerDao extends IOperations<Owner> {
+    //
+}
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/AbstractHibernateDao.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/common/AbstractHibernateDao.java
similarity index 96%
rename from spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/AbstractHibernateDao.java
rename to spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/common/AbstractHibernateDao.java
index 0ff6307147..25d14cd697 100644
--- a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/AbstractHibernateDao.java
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/common/AbstractHibernateDao.java
@@ -1,4 +1,4 @@
-package org.baeldung.spring.persistence.dao;
+package org.baeldung.spring.persistence.dao.common;
 
 import java.io.Serializable;
 import java.util.List;
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IOperations.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/common/IOperations.java
similarity index 85%
rename from spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IOperations.java
rename to spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/common/IOperations.java
index d2cb0a9cef..716bd40e9b 100644
--- a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/IOperations.java
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/common/IOperations.java
@@ -1,4 +1,4 @@
-package org.baeldung.spring.persistence.dao;
+package org.baeldung.spring.persistence.dao.common;
 
 import java.io.Serializable;
 import java.util.List;
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/ChildDao.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/ChildDao.java
new file mode 100644
index 0000000000..380787823c
--- /dev/null
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/ChildDao.java
@@ -0,0 +1,24 @@
+package org.baeldung.spring.persistence.dao.impl;
+
+import org.baeldung.spring.persistence.dao.IChildDao;
+import org.baeldung.spring.persistence.dao.common.AbstractHibernateDao;
+import org.baeldung.spring.persistence.model.Child;
+import org.hibernate.SessionFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public class ChildDao extends AbstractHibernateDao<Child> implements IChildDao {
+
+    @Autowired
+    private SessionFactory sessionFactory;
+
+    public ChildDao() {
+        super();
+
+        setClazz(Child.class);
+    }
+
+    // API
+
+}
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/FooDao.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/FooDao.java
similarity index 71%
rename from spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/FooDao.java
rename to spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/FooDao.java
index 1efa61ffb2..c083b41799 100644
--- a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/FooDao.java
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/FooDao.java
@@ -1,5 +1,7 @@
-package org.baeldung.spring.persistence.dao;
+package org.baeldung.spring.persistence.dao.impl;
 
+import org.baeldung.spring.persistence.dao.IFooDao;
+import org.baeldung.spring.persistence.dao.common.AbstractHibernateDao;
 import org.baeldung.spring.persistence.model.Foo;
 import org.hibernate.SessionFactory;
 import org.springframework.beans.factory.annotation.Autowired;
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/OwnerDao.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/OwnerDao.java
new file mode 100644
index 0000000000..a9156d06cf
--- /dev/null
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/dao/impl/OwnerDao.java
@@ -0,0 +1,24 @@
+package org.baeldung.spring.persistence.dao.impl;
+
+import org.baeldung.spring.persistence.dao.IOwnerDao;
+import org.baeldung.spring.persistence.dao.common.AbstractHibernateDao;
+import org.baeldung.spring.persistence.model.Owner;
+import org.hibernate.SessionFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public class OwnerDao extends AbstractHibernateDao<Owner> implements IOwnerDao {
+
+    @Autowired
+    private SessionFactory sessionFactory;
+
+    public OwnerDao() {
+        super();
+
+        setClazz(Owner.class);
+    }
+
+    // API
+
+}
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/model/Child.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/model/Child.java
new file mode 100644
index 0000000000..123ab2ac17
--- /dev/null
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/model/Child.java
@@ -0,0 +1,30 @@
+package org.baeldung.spring.persistence.model;
+
+import java.io.Serializable;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+@Entity
+public class Child implements Serializable {
+
+    @Id
+    @GeneratedValue
+    private long id;
+
+    public Child() {
+        super();
+    }
+
+    // API
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(final long id) {
+        this.id = id;
+    }
+
+}
diff --git a/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/model/Owner.java b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/model/Owner.java
new file mode 100644
index 0000000000..d2f8d36f44
--- /dev/null
+++ b/spring-hibernate4/src/main/java/org/baeldung/spring/persistence/model/Owner.java
@@ -0,0 +1,30 @@
+package org.baeldung.spring.persistence.model;
+
+import java.io.Serializable;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+@Entity
+public class Owner implements Serializable {
+
+    @Id
+    @GeneratedValue
+    private long id;
+
+    public Owner() {
+        super();
+    }
+
+    // API
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(final long id) {
+        this.id = id;
+    }
+
+}