A simple example using a one-to-many relationship in Hibernate with an Annotation configuration to find, save, and update a record.
A Person
has a one-to-many relationship with Address
.
The jdbc:embedded-database element is used to initialize the test HSQLDB database and
the LocalSessionFactoryBean
is used to configure Hibernate.
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:jdbc="http://www.springframework.org/schema/jdbc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd"> <jdbc:embedded-database id="dataSource" type="HSQL"> <jdbc:script location="classpath:/schema.sql" /> </jdbc:embedded-database> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean" p:dataSource-ref="dataSource"> <property name="mappingLocations"> <list> <value>classpath:org/springbyexample/orm/hibernate3/bean/Address.hbm.xml</value> <value>classpath:org/springbyexample/orm/hibernate3/bean/Person.hbm.xml</value> </list> </property> <property name="hibernateProperties"> <value> hibernate.format_sql=true hibernate.dialect=org.hibernate.dialect.HSQLDialect </value> </property> </bean> </beans>
The annotatedClasses property is used to set a list of Hibernate annotated classes. The Person DAO is configured using Hibernate's session factory.
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <import resource="classpath:org/springbyexample/orm/hibernate3/shared-context.xml"/> <!-- Override xml session factory imported from shared-context.xml --> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean" p:dataSource-ref="dataSource"> <property name="annotatedClasses"> <list> <value>org.springbyexample.orm.hibernate3.annotation.bean.Person</value> <value>org.springbyexample.orm.hibernate3.annotation.bean.Address</value> </list> </property> <property name="hibernateProperties"> <value> hibernate.format_sql=true hibernate.dialect=org.hibernate.dialect.HSQLDialect </value> </property> </bean> <bean id="personDao" class="org.springbyexample.orm.hibernate3.annotation.dao.PersonDaoImpl" p:sessionFactory-ref="sessionFactory" /> </beans>