Specifying the schema programatically

jmedina · **Joined:** Mon Apr 14, 2008 11:24 am **Posts:** 5

Hi,
I am using Oracle database and I have available multiple schemas with identical structure but that are used for different customers or for test purposes.
I only have one user -and therefore a single default schema-.

I manage to work with different schemas by modyfing my Hibernate mappings using the "schema" attribute of the "<class>" elements in the "<hibernate-mapping>" file.
Nevertheless, this implies that I need to change the XML files every time that I need to switch to a different schema.

Is there anyway to specify this programatically?

Below is the segment of one of my files

<hibernate-mapping>
<class name="com.myenterprise.test.hibernate.ormdata.MyClass" table="T_MYTABLE" schema="TEST_SCHEMA">
<id name="campaignId" type="big_decimal">
<column name="THE_ID" precision="22" scale="0" />
<generator class="assigned" />
</id>
...
</hibernate-mapping>

Victor83 · **Joined:** Tue Oct 09, 2007 3:09 am **Posts:** 6

Something like this should help:

Code:

Configuration cfg = 
...
Iterator it = cfg.getClassMappings();
while (it.hasNext())
{
  org.hibernate.mapping.PersistentClass cls = (org.hibernate.mapping.PersistentClass)it.next();
  cls.getTable().setSchema(schemaName);
}

slonix · **Posted:** Wed Apr 23, 2008 7:48 am

Hello Victor,
Thank you for a proposed solution. It works quite well, but it is slightly incomplete. In your code you are patching tables related to entity tables, but tables related to collection mappings are left untouched.

I am using the following code:

for (Iterator it = cfg.getTableMappings(); it.hasNext();) {
org.hibernate.mapping.Table mappingTable = (org.hibernate.mapping.Table) it.next();
mappingTable.setSchema(schemaName);
}