Organize to packages.

service-layer/src/main/java/com/iluwatar/wizard/WizardDaoImpl.java

@@ -0,0 +1,34 @@
+package com.iluwatar.wizard;
+
+import org.hibernate.Criteria;
+import org.hibernate.Session;
+import org.hibernate.Transaction;
+import org.hibernate.criterion.Expression;
+
+import com.iluwatar.common.DaoBaseImpl;
+
+public class WizardDaoImpl extends DaoBaseImpl<Wizard> implements WizardDao {
+
+	@Override
+	public Wizard findByName(String name) {
+		Session session = getSession();
+		Transaction tx = null;
+		Wizard result = null;
+		try {
+			tx = session.beginTransaction();
+			Criteria criteria = session.createCriteria(persistentClass);
+			criteria.add(Expression.eq("name", name));
+			result = (Wizard) criteria.uniqueResult();
+			result.getSpellbooks().size();
+			tx.commit();
+		}
+		catch (Exception e) {
+			if (tx!=null) tx.rollback();
+			throw e;
+		}
+		finally {
+			session.close();
+		}		
+		return result;
+	}
+}