How do I update my Java model class after adding one column?

laredotornado · **Joined:** Wed Oct 14, 2009 3:22 pm **Posts:** 16

Hi,

I'm using Java 1.5, Resin 3.0.19 ,Hibernate 3.4.0.GA and Oracle 10g. I inherited a project that has mapped a Java class to an Oracle table. Now I need to add an extra column to the Oracle table, which I've done through a simple "ALTER TABLE" statement. What is the easiest way to update my Java model? I'm using a Mac OS 10.5.6 (Unix essentially) and Eclipse Galileo.

Thanks, - Dave

santiagozky · **Joined:** Fri Apr 03, 2009 4:12 pm **Posts:** 9

Hello,

I'm kind of new with hibernate as well, but what I do is add the mapping in my hibernate configuration an let hibernate add the new column using the property

Code:

<property name="hibernate.hbm2ddl.auto">update</property>

.

Of course you could also just add the mapping after altering the table, I don't think it matters who created the column.

arani.krishna · **Joined:** Fri Oct 23, 2009 9:57 pm **Posts:** 1

Are you asking to add new property without bringing the application or session factory down. Then you probably can not this. Even if you try to create a new factory, there will a problem with the old session. Best way is to bring your app down add this new property to mapping and bring the system back