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Hibernate/config-example
From OWASP
Person.java
package events; import java.util.*; public class Person { private Long id; private int age; private String firstname; private String lastname; private Set emailAddresses = new HashSet(); private Set events = new HashSet(); public Person() {} public Long getId() { return id; } public void setId(Long id) { this.id = id; } .....setters and getters for each property etc...... protected Set getEvents() { return events; } protected void setEvents(Set events) { this.events = events; } }
person.hbm.xml mapping file for Person.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="events.Person" table="PERSON"> <id name="id" column="PERSON_ID"> <generator class="native"/> </id> <property name="age"/> <property name="firstname"/> <property name="lastname"/> <set name="events" table="PERSON_EVENT"> <key column="PERSON_ID"/> <many-to-many column="EVENT_ID" class="events.Event"/> </set> <set name="emailAddresses" table="PERSON_EMAIL_ADDR"> <key column="PERSON_ID"/> <element type="string" column="EMAIL_ADDR"/> </set> </class> </hibernate-mapping>
hibernate.cfg.xml configuration file.
<?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> <!-- Database connection settings --> <property name="connection.driver_class">org.hsqldb.jdbcDriver</property> <property name="connection.url">jdbc:hsqldb:hsql://localhost</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> <!-- Enable Hibernate's automatic session context management --> <property name="current_session_context_class">thread</property> <!-- Disable the second-level cache --> <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> <!-- Echo all executed SQL to stdout --> <property name="show_sql">true</property> <!-- Drop and re-create the database schema on startup --> <property name="hbm2ddl.auto">create</property> <mapping resource="events/Event.hbm.xml"/> <mapping resource="events/Person.hbm.xml"/> </session-factory> </hibernate-configuration>