Java/Hibernate/Save

Simple Save Demo

   <source lang="java">

/////////////////////////////////////////////////////////////////////////

import org.hibernate.Session; import util.ConnectionUtil; import util.HibernateUtil; public class Main {

 static Session session;
 public static void main(String[] args) {
   open();
   Keyword k = new Keyword();
   session.save(k);
   session.flush();
   
   close();
 }
 
 private static void open() {
   ConnectionUtil.openConnection();
   ConnectionUtil.update("CREATE TABLE KEYWORDS ( ID int, NAME VARCHAR(25) )");
   session = HibernateUtil.currentSession();
 }
 private static void close() {
   ConnectionUtil.closeConnection();
   HibernateUtil.closeSession();
   HibernateUtil.sessionFactory.close();
 }

} ///////////////////////////////////////////////////////////////////////// <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC

         "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
         "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

 <class name="Keyword" table="keywords">
       
   <id name="id" column="id" unsaved-value="null">
     <generator class="increment"/>
   </id>
       
   <property name="name" 
             column="NAME" 
             not-null="true" 
             unique="true"
             />
 </class>

</hibernate-mapping>

/////////////////////////////////////////////////////////////////////////

public class Keyword {

   protected Integer    id_;
   protected String name_ ="aaa";
   public Keyword() {
   }
   public Integer getId() {
       return id_;
   }
   public void setId(Integer newId) {
       this.id_ = newId;
   }
   public String getName() {
       return name_;
   }
   public void setName(String newName) {
       this.name_ = newName;
   }

}

///////////////////////////////////////////////////////////////////////// <!DOCTYPE hibernate-configuration PUBLIC

 "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

 <session-factory>
    
       <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
       <property name="connection.url">jdbc:hsqldb:mem:testdb</property>
       <property name="connection.username">sa</property>
       <property name="connection.password"></property>
       
       <property name="connection.pool_size">2</property>
       
       <property name="dialect">org.hibernate.dialect.HSQLDialect</property>
       
       <property name="show_sql">true</property>
       
       <mapping resource="Keyword.hbm.xml"/>
 </session-factory>

</hibernate-configuration>

/////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////

      </source>