Hibernate query...how to connect two databases...

Question

hi i m new to hibernate..
i created two tables..
1st table is catalog:
2nd table is acctinfo
//HBM file is :
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="hibernate.example.Catalog" table="catalog">
<id name="id" type="integer" column="ID">
<generator class="increment"/>
</id>
<property name="journal" type="string" column="JOURNAL"/>
<property name="publisher" type="string" column="PUBLISHER"/>
<property name="edition" type="string" column="EDITION"/>
<property name="title" type="string" column="TITLE"/>
<property name="author" type="string" column="AUTHOR"/>
<bag name="accinfo" cascade="all" >
<key column="ID"/>
<one-to-many class="hibernate.example.Acctinfo"/>
</bag>
</class>
<class name="hibernate.example.Acctinfo" table="acctinfo">
<id name="id" type="integer" column="ID">
<generator class="increment"/>
</id>
<property name="account" type="string" column="ACCOUNT"/>
<property name="password" type="string" column="PASSWORD"/>
<property name="balance" type="string" column="BALANCE"/>
</class>
</hibernate-mapping>
///******************getter setter file is::****************
package hibernate.example;
public class Acctinfo
     int id;
     String account;
     String password;
     String balance;
     public Acctinfo()
     public void setId(int id)
          this.id = id;
     public int getId()
          return id;
     public void setAccount(String account)
          this.account = account;
     public void setPassword(String password)
          this.password = password;
     public void setBalance(String balance)
          this.balance = balance;
     public String getAccount()
          return account;
     public String getBalance()
          return balance;
     public String getPassword()
          return password;
//********************2nd getter setter file is:***********************
package hibernate.example;
import java.util.List;
public class Catalog
int id;
String journal;
String publisher;
String edition;
String title;
String author;
private List accinfo;
public Catalog()
public void setId(int id)
this.id = id;
public int getId()
return id;
public void setJournal(String journal)
this.journal = journal;
public String getJournal()
return journal;
public void setPublisher(String publisher)
this.publisher = publisher;
public String getPublisher()
return publisher;
public void setEdition(String edition)
this.edition = edition;
public String getEdition()
return edition;
public void setTitle(String title)
this.title = title;
public String getTitle()
return title;
public void setAuthor(String author)
this.author = author;
public String getAuthor()
return author;
public void setAccinfo(List accinfo)
this.accinfo = accinfo;
public List getAccinfo()
return accinfo;
* To change this template, choose Tools | Templates
* and open the template in the editor.
package hibernate.example;
import hibernate.example.Acctinfo;
import hibernate.example.Catalog;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import org.hibernate.Query;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
public class CatalogClient
     Session session = null;
     SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
     public static void main(String str[])
          CatalogClient clc = new CatalogClient();
          //clc.saveData();
          //clc.deleteData();
          //clc.showData();
          clc.updateData();
     public void showData()
          try
               session =sessionFactory.openSession();
               String SQL_QUERY ="select id, journal, publisher, edition, title, author from catalog";
               // String SQL_QUERY ="select c.ID, c.JOURNAL, c.PUBLISHER, c.EDITION, c.TITLE, c.AUTHOR, a.ACCOUNT, a.PASSWORD,a.BALANCE from catalog c, ACCTINFO a where c.ID = a.ID";
               SQLQuery query = session.createSQLQuery(SQL_QUERY);
               System.out.println("*** query : *** "+ query);
               //for(ListIterator it=query.list().listIterator();it.hasNext();)
               for (ListIterator lit = query.list().listIterator(); lit.hasNext();)
                    Object[] row = (Object[]) lit.next();
                    /*System.out.println("ID: " + row[0]);
                    System.out.println("Title: " + row[1]);
                    System.out.println("Author: " + row[2]);
                    System.out.println("Isbn: " + row[3]);
                    System.out.println("Pages: " + row[4]);
                    System.out.println("Copyright: " + row[5]);
                    System.out.println("Cost: " + row[6]);
                    System.out.println("******NEXT****************");
Object[] row = (Object[]) it.next();*/
                    System.out.println("ID: " + row[0]);
                    System.out.println("JOURNAL: " + row[1]);
                    System.out.println("PUBLISHER: " + row[2]);
                    System.out.println("EDITION: " + row[3]);
                    System.out.println("TITLE: " + row[4]);
                    System.out.println("AUTHOR: " + row[5]);
                    System.out.println("acc: " + row[6]);
                    System.out.println("pass: " + row[7]);
                    System.out.println("bal: " + row[8]);
                    System.out.println("***************************");
               session.close();
          catch(Exception e)
               System.out.println(e.getMessage());
     public void saveData()
          session =sessionFactory.openSession();
          Transaction transaction = null;
          transaction = session.beginTransaction();
          Catalog catalog = setBean();
          //System.out.println("before save");
          session.save(catalog);
          //System.out.println("after save");
          transaction.commit();
          session.flush();
          session.close();
     public void updateData()
          session =sessionFactory.openSession();
          Catalog catalog = new Catalog();
          catalog.setId(2);
          catalog.setAuthor("manoj");
          catalog.setJournal("java");
          catalog.setEdition("1st");
          catalog.setPublisher("indiabulls");
          catalog.setTitle("java Servlet");
          session.update(catalog);
          session.flush();
          session.close();
     public void deleteData()
          session =sessionFactory.openSession();
          Catalog catalog = new Catalog();
          catalog.setId(3);
          session.delete(catalog);
          session.flush();
          session.close();
     public static Catalog setBean()
          Acctinfo accinfo = new Acctinfo();
          accinfo.setAccount("MANOJ1");
          accinfo.setPassword("orbis");
          accinfo.setBalance("1000");
          List list = new ArrayList();
          list.add(accinfo);
          Catalog catalog = new Catalog();
          catalog.setJournal("india");
          catalog.setPublisher("indiabulls");
          catalog.setEdition("ist");
          catalog.setTitle("orbis");
          catalog.setAuthor("manoj");
          catalog.setAccinfo(list);
          return catalog;
//********************CFG FILE IS ******************
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory name="session">
<property name="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect</property>
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@172.16.31.25:1521:BOMBAY</property>
<property name="hibernate.connection.username">mumbai</property>
<property name="hibernate.connection.password">mumbai123</property>
<!-- Set AutoCommit to true -->
<property name="connection.autocommit">true</property>
<property name="dialect">org.hibernate.dialect.OracleDialect</property>
<!-- Mapping files -->
<mapping resource="Catalog.hbm.xml"/>
</session-factory>
</hibernate-configuration>
**********************error i m facing is :************************
0 [main] WARN net.sf.ehcache.config.Configurator - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/C:/Documents%20and%20Settings/d.poonam/Desktop/hibernate/lib/ehcache-1.1.jar!/ehcache-failsafe.xml
1188 [main] WARN org.hibernate.impl.SessionFactoryObjectFactory - Could not bind factory to JNDI
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
     at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
     at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
     at javax.naming.InitialContext.getURLOrDefaultInitCtx(Unknown Source)
     at javax.naming.InitialContext.getNameParser(Unknown Source)
     at org.hibernate.util.NamingHelper.bind(NamingHelper.java:52)
     at org.hibernate.impl.SessionFactoryObjectFactory.addInstance(SessionFactoryObjectFactory.java:90)
     at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:247)
     at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1043)
     at hibernate.example.CatalogClient.<init>(CatalogClient.java:24)
     at hibernate.example.CatalogClient.main(CatalogClient.java:27)
please help me out....
thanks in advance..
if u know how to connect two tables plz let me know..
its urgent....

Answer 1

I made this work with MySQL. Adapt to your situation as needed. - %
package hibernate.model;
import hibernate.util.HibernateUtils;
import hibernate.model.Catalog;
import hibernate.model.Account;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Session;
import hibernate.util.HibernateUtils;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertNotNull;
public class CatalogTest
   private static final Log LOGGER = LogFactory.getLog(CatalogTest.class);
   public static void main(String[] args)
      Session session = null;
      try
         session = HibernateUtils.getSessionFactory().getCurrentSession();
         session.beginTransaction();
         int rowsBefore = HibernateUtils.getRowCount(session, Catalog.class);
         assertEquals("should not have any Catalogs", rowsBefore, 0);
         Catalog catalog = new Catalog("test title");
         catalog.addAccount(new Account(100));
         catalog.addAccount(new Account(200));
         Long id = (Long) session.save(catalog);
         assertNotNull("generated id should not be null", id);
         LOGGER.info("returned id: " + id);
         session.getTransaction().commit();
         LOGGER.debug("transaction committed");
      catch (Exception e)
         LOGGER.error(e);
         session.getTransaction().rollback();
package hibernate.model;
import java.io.Serializable;
import java.text.NumberFormat;
public class Account implements Serializable
   private Long id;
   private int balance;
   public Account()
      this(null, 0);
   public Account(int balance)
      this(null, balance);
   public Account(Long id, int balance)
      this.id = id;
      this.balance = balance;
   public Long getId()
      return id;
   private void setId(Long id)
      this.id = id;
   public int getBalance()
      return balance;
   private void setBalance(int balance)
      this.balance = balance;
   public boolean equals(Object o)
      if (this == o)
         return true;
      if (!(o instanceof Account))
         return false;
      Account account = (Account) o;
      return !(id != null ? !id.equals(account.id) : account.id != null);
   public int hashCode()
      int result;
      result = (id != null ? id.hashCode() : 0);
      result = 31 * result + balance;
      return result;
   public String toString()
      return new StringBuilder().append("Account{").append("id=").append(id).append(", balance=").append(NumberFormat.getCurrencyInstance().format(balance)).append('}').toString();
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
      "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
      "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="hibernate.model" default-access="field" default-lazy="true">
   <class name="Account" table="accounts">
      <id name="id" column="account_id">
         <generator class="native"/>
      </id>
      <property name="balance" column="balance"/>
   </class>
</hibernate-mapping>
package hibernate.model;
import java.io.Serializable;
import java.util.Set;
import java.util.HashSet;
import java.util.Collections;
public class Catalog implements Serializable
   private Long id;
   private String title;
   private Set<Account> accounts;
   public Catalog()
      this(null, "", Collections.EMPTY_SET);
   public Catalog(String title)
      this(null, title, Collections.EMPTY_SET);
   public Catalog(Long id, String title, Set<Account> accounts)
      this.id = id;
      this.title = title;
      this.accounts = new HashSet<Account>(accounts);
   public Long getId()
      return id;
   private void setId(Long id)
      this.id = id;
   public String getTitle()
      return title;
   private void setTitle(String title)
      this.title = title;
   public Set<Account> getAccounts()
      return accounts;
   private void setAccounts(Set<Account> accounts)
      this.accounts = accounts;
   public void addAccount(Account account)
      this.getAccounts().add(account);
   public void removeAccount(Account account)
      this.getAccounts().remove(account);
   public boolean equals(Object o)
      if (this == o)
         return true;
      if (!(o instanceof Catalog))
         return false;
      Catalog catalog = (Catalog) o;
      return !(id != null ? !id.equals(catalog.id) : catalog.id != null);
   public int hashCode()
      return (id != null ? id.hashCode() : 0);
   public String toString()
      return new StringBuilder().append("Catalog{").append("id=").append(id).append(", title='").append(title).append('\'').append(", accounts=").append(accounts).append('}').toString();
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
      "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
      "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="hibernate.model" default-access="field" default-lazy="true">
   <class name="Catalog" table="catalogs">
      <id name="id" column="catalog_id">
         <generator class="native"/>
      </id>
      <property name="title" column="title"/>
      <set name="accounts" cascade="all">
         <key column="catalog_id"/>
         <one-to-many class="hibernate.model.Account"/>
      </set>
   </class>
</hibernate-mapping>
<!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">com.mysql.jdbc.Driver</property>
      <property name="connection.url">jdbc:mysql://localhost:3306/hibernate?autoReconnect=true</property>
      <property name="connection.username">hibernate</property>
      <property name="connection.password">hibernate</property>
      <property name="connection.pool_size">1</property>
      <property name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>
      <property name="show_sql">true</property>
      <property name="generate_statistics">true</property>
      <property name="query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property>
      <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
      <property name="cache.use_minimal_puts">false</property>
      <property name="cache.use_query_cache">false</property>
      <property name="order_updates">false</property>
      <property name="hbm2ddl.auto">create-drop</property>
      <property name="current_session_context_class">thread</property>
      <mapping resource="hibernate/persistence/hibernate/Account.hbm.xml"/>
      <mapping resource="hibernate/persistence/hibernate/Catalog.hbm.xml"/>
     </session-factory>
</hibernate-configuration>