使用Play Framework 1.2.5的Hibernate 3.2.5

Question

I am trying to use Hibernate 3.2.5 with Play framework 1.2.5

In Hibernate I am having two files:

1) cfg.xml file (containing the db config details along with some additional properties 2) hbm.xml file (containing the mapping between the java bean and the db table

For getting connected to the oracle 10g db, I am providing the db details in the application.config files like this and the connection is successful also when I start the server:

db.url=jdbc:oracle:thin:@localhost:1521/orcl
db.driver=oracle.jdbc.OracleDriver
db.user=system
db.pass=tiger

I want to know Where will I place the hbm.xml file (for mapping details) and the cfg.xml file for the remaining properties other than db connecion details?

Please let me know about this.

Regards,

Answer 1

Starting from the root directory of your application:

• the hibernate.cfg.xml must be placed inside the app directory
• the mapping files (the hbm files) where your models classes are defined, usually inside the app/models/ directory

Inside your hibernate.cfg.xml the mapping attributes should be something like:

<mapping class="models.yourHmbFile1"/>
<mapping class="models.yourHmbFile2"/>

Btw, I find easy to use the hibernate annotations instead of the hbm - xml mapping. Easier to write and to mantain.

If you prefer to annotate your model classes, you can delete the hbm files and directly map your annotated classes in your hibernate.cfg.xml .

In the application.conf you've to specify the data you have already added:

db.url=jdbc:oracle:thin:@localhost:1521/orcl
db.driver=oracle.jdbc.OracleDriver
db.user=system
db.pass=tiger

Also in the hibernate.cfg.xml you need to specify the connection data:

<property name="hibernate.dialect">...</property>
  <property name="hibernate.connection.driver_class">...</property>
  <property name="hibernate.connection.url">...</property>
  <property name="hibernate.connection.username">...</property>
  <property name="hibernate.connection.password">...</property>