Hibernate mapping with Database TABLE

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Hibernate mapping with Database TABLE

Follow the steps to mapp with Database TABLE.

Step 1. create a table name OFFER in your database

create table OFFER ( offer_id number; offer_name varchar );

Step 2. Create Offer.java bean class.


				package beans;

					public class Offer {

		private long offerId;


    private String offerName;

	
	/**

	 * @return Returns the offerId.

	 */
	public long getOfferId() {

		return offerId;

	}

	/**

	 * @param offerId The offerId to set.

	 */

	private void setOfferId(long offerId) {

		this.offerId = offerId;

	}

	/**
	 * @return Returns the offerName.

	 */

	public String getOfferName() {

		return offerName;

	}

	/**

	 * @param offerName The offerName to set.

	 */

	public void setOfferName(String offerName) {

		this.offerName = offerName;

	}

}

Step 3. Offer.hbm.xml - This mapps OFFER TABLE and Offer.java

<?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>
<class name="beans.Offer" table="OFFER">
<id name="offerId" column="offer_id" type="long">
<generator class="increment"/> // This generates the primary key
</id>
<property name="offerName" column="offer_name"/>
</class>
</hibernate-mapping>

Step 4. add Offer.hbm.xml into hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<lt;!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/techfaqdb</property>
<property name="connection.username">techfaq</property>
<property name="connection.password">techfaq</property>

<property name="hibernate.c3p0.min_size">1</property>
<property name="hibernate.c3p0.max_size">4</property>
<property name="hibernate.c3p0.timeout">1800</property>
<property name="hibernate.c3p0.max_statements">50</property>

<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

<property name="current_session_context_class">thread</property>

<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
<mapping resource="Offer.hbm.xml"/>
</session-factory>
</hibernate-configuration>