JPA SET IDENTITY_INSERT not working

Question

I want to run this query from JPA from my code. But its not working.

Please help.

SET IDENTITY_INSERT \"+tableName+\" ON

UP

Answer 1

This and this have helped me and I have got this working as below.

Also from this link I got the answer that JPA will not support DDL operation.

If anyone can add to this answer, that will be great too.

EntityTransaction tx = entityManager.getTransaction();

try {
// entitiesMap hold the entity class/table name pairs which have autoincrement primary keys in the sql server database
if(entitiesMap.containsKey(entityName)){
    String tableName = entitiesMap.get(entityName);
    Session session = (Session) entityManager.getDelegate();
    session.connection().createStatement().execute("SET IDENTITY_INSERT [dbo]." + tableName + " ON");
}

tx.begin();
entityObject = jpaTemplate.merge(entity);
tx.commit();

if(entitiesMap.containsKey(entityName)){
    String tableName = entitiesMap.get(entityName);
    Session session = (Session) entityManager.getDelegate();
    session.connection().createStatement().execute("SET IDENTITY_INSERT [dbo]." + tableName + " OFF");
}

return entityObject;
} catch (Exception e) {
}finally{
}