Auto Generate hibernate mapping files and pojos

06May08

Use the following targets to auto generate hibernate mapping files from database and pojos from .hbm.xml files.

<taskdef name=”hbm2java”
classname=”net.sf.hibernate.tool.hbm2java.Hbm2JavaTask”>
<classpath refid=”hbm2java.class.path” />
</taskdef>

<taskdef name=”middlegen” classname=”middlegen.MiddlegenTask”>
<classpath refid=”middlegen.class.path” />
</taskdef>

<target name=”hbm2java” description=”Generate Java Pojos from the Hibernate mapping files”>
<hbm2java output=”${source.generated}”
config=”hibernate.cfg.xml”>
<fileset dir=”${hibernate.source}”>
<include name=”**/*.hbm.xml” />
</fileset>
</hbm2java>
</target>

<target name=”middlegen” description=”Generate Hibernate mapping files”>
<middlegen appname=”Hibernate-Spring” prefsdir=”${middlegen.temp}”
gui=”false” databaseurl=”${jdbc.url}” driver=”${jdbc.driver}”
username=”${database.username}” password=”${database.password}”
schema=”${database.schema}” catalog=”${database.catalog}”>
<!– Optionally declare table elements –>
<!– Optionally declare many2many elements –>
<!– One or more plugins –>
<hibernate destination=”${source.generated}”
package=”${package.name}”
javaTypeMapper=”middlegen.plugins.hibernate.HibernateJavaTypeMapper” />
</middlegen>
</target>

Sample build.properties file

# MSJava, Hibernate, Middlegen
hibernate.home=C:/Hibernate/hibernate-2.1
hibernate.extensions.home=C:/Hibernate/hibernate-extensions-2.1.3
middlegen.home=C:/Hibernate/middlegen-2.1
middlegen.temp=C:/middlegen.temp

# Source Folders/Packages
source.generated=packages
hibernate.source=packages/java/test
package.name=java.test

# Database connection
jdbc.url=
jdbc.driver=
database.username=
database.password=
database.schema=
database.catalog=

I hope that helps, Cheers Bye

Filed under: Technical   |  2 Comments
Tags: Auto Generate, files, hbm2java, hibernate, mapping, middlegen, pojos