Date Calendar Type Demo : Hibernate Data Type « Hibernate « Java






Date Calendar Type Demo

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" 
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>
    <class  name="BasicAccount" table="account"> 
    <id name="id" type="string" unsaved-value="null">
       <generator class="uuid.hex"/>
    </id>
    
    <property name="name"/>
    <property name="accountnumber"/>
    <property name="setupdate">
        <column name="setup" sql-type="Date"/>
    </property>
    <property name="balance" type="double"/>
    </class>
</hibernate-mapping>

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import java.util.*;

public class BasicAccount {
  private String id; 
  private String name;
  private String accountnumber; 
  private Date setupdate; 
  private double balance;

  public BasicAccount() {
  }

  public void setId(String s) {
    id = s;
  }

  public String getId() {
    return id;
  }

  public void setName(String s) {
    name = s;
  }

  public String getName() {
    return name;
  }

  public void setAccountnumber(String s) {
    accountnumber = s;
  }

  public String getAccountnumber() {
    return accountnumber;
  }

  public void setSetupdate(Date d) {
    setupdate = d;
  }

  public Date getSetupdate() {
    return setupdate;
  }

  public void setBalance(double d) {
    balance = d;
  }

  public double getBalance() {
    return balance;
  }
  
}


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<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <!-- Database connection settings -->
        <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
        <property name="connection.url">jdbc:hsqldb:data/tutorial</property>
        <property name="connection.username">sa</property>
        <property name="connection.password"></property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.HSQLDialect</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- Mapping files -->
        <mapping resource="BasicAccount.hbm.xml"/>
    </session-factory>
</hibernate-configuration>
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import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

import java.sql.ResultSet;
import java.sql.ResultSetMetaData;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateUtil {

    public static final SessionFactory sessionFactory;

    static {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            sessionFactory = new Configuration().configure().buildSessionFactory();
        } catch (Throwable ex) {
            // Make sure you log the exception, as it might be swallowed
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    public static final ThreadLocal session = new ThreadLocal();

    public static Session currentSession() throws HibernateException {
        Session s = (Session) session.get();
        // Open a new Session, if this thread has none yet
        if (s == null) {
            s = sessionFactory.openSession();
            // Store it in the ThreadLocal variable
            session.set(s);
        }
        return s;
    }

    public static void closeSession() throws HibernateException {
        Session s = (Session) session.get();
        if (s != null)
            s.close();
        session.set(null);
    }
    
    static Connection conn; 
    static Statement st;
  public static void setup(String sql) {
    try {
      // Step 1: Load the JDBC driver.
      Class.forName("org.hsqldb.jdbcDriver");
      System.out.println("Driver Loaded.");
      // Step 2: Establish the connection to the database.
      String url = "jdbc:hsqldb:data/tutorial";

      conn = DriverManager.getConnection(url, "sa", "");
      System.out.println("Got Connection.");

      st = conn.createStatement();
      st.executeUpdate(sql);
    } catch (Exception e) {
      System.err.println("Got an exception! ");
      e.printStackTrace();
      System.exit(0);
    }
  }
  public static void checkData(String sql) {
    try {
      HibernateUtil.outputResultSet(st
          .executeQuery(sql));
//      conn.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

    public static void outputResultSet(ResultSet rs) throws Exception{
    ResultSetMetaData metadata = rs.getMetaData();

    int numcols = metadata.getColumnCount();
    String[] labels = new String[numcols]; 
    int[] colwidths = new int[numcols];
    int[] colpos = new int[numcols];
    int linewidth;

      for (int i = 0; i < numcols; i++) {
        labels[i] = metadata.getColumnLabel(i + 1); // get its label
        System.out.print(labels[i]+"  ");
    }
      System.out.println("------------------------");

    while (rs.next()) {
        for (int i = 0; i < numcols; i++) {
        Object value = rs.getObject(i + 1);
        System.out.print(value.toString().trim()+"   ");
      }
    }
    }
}

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import java.io.Serializable;
import java.util.*;
import java.sql.*;
import org.hibernate.*;
import org.hibernate.cfg.*;
import org.hibernate.criterion.*;
import org.hibernate.event.*;
import org.hibernate.event.def.*;

public class Main {
   public static void main(String[] args) throws Exception {
      HibernateUtil.setup("create table account (id varchar not null,name varchar,accountnumber varchar,setup Date,balance double);");    



      Session session = HibernateUtil.currentSession();

      BasicAccount account = new BasicAccount();

      account.setName("Joe");
      account.setAccountnumber("39084");
      account.setSetupdate(new java.util.Date());
      account.setBalance(4054.00);

      session.save(account);
      session.flush();

      BasicAccount account2 = (BasicAccount)session.load
            (BasicAccount.class, account.getId());

      System.out.println(account.getId() + " : " + account.getSetupdate());
      System.out.println(account2.getId() +
             " : " + account2.getSetupdate());

      session.close();


      session.close();
      HibernateUtil.checkData("select * from account");
   }
}


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HibernateDataTypeDateCalendar.zip( 4,577 k)

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