One to One mapping

Question

Hi,
I have an object A having one to one relation with object B.
Object A has these fields
id - long
name - String
order - ValueHolderinterface (for object B)
object B has these fields
order_id - long
order_type - String
I am using ExpressionBuilder to query all objects of type A having order_id =some value say 1.
ExpressionBuilder builder = new ExpressionBuilder();
Expression exp=null;
exp=builder.get(?).likeIgnoreCase("1");
What should I use as attribute name, that is in the place of "?" for querying based on order_id.
Appreciate any help.
Thanks
Priya

Answer 1

Hi,
Assuming the fields you've given are the variable names in the class (as opposed to the database columns), it'd be:
exp = builder.get( "order" ).get( "order_id" ).equal( "1" );
And then you'd query with A.class as your reference class, like
session.executeQuery( A.class, exp );
Greg