Hibernate example source code file (Product.hbm.xml)

This example Hibernate source code file (Product.hbm.xml) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

doctype, doctype, dtd, dtd, hibernate/hibernate, lineitem, lineitem, mapping, mapping, product, public, this

The Hibernate Product.hbm.xml source code

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC 
	"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
	"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="org.hibernate.test.cid">

<!-- 

  This mapping demonstrates 

     (1) use of a derived property which performs a
         subselect against an associated table
         
     (2) use of <synchronize/> to ensure that auto-flush
         works correctly for an entity with a property
         derived from another table
         
     
-->

    <class name="Product">
    	<synchronize table="LineItem"/>
    
    	<id name="productId"
    		length="10">
    		<generator class="assigned"/>
    	</id>
    	
    	<property name="description" 
    		not-null="true" 
    		length="200"/>
    	<property name="price" length="3" column="cost"/>
    	<property name="numberAvailable"/>
    	
    	<property name="numberOrdered"
    		formula="( select sum(li.quantity) from LineItem li where li.productId = productId )"/>
	</class>

</hibernate-mapping>