C++ and Object-Relational Mapping

This example uses the ODMG C++ Binding and the ODMG Object Query Language (OQL). Other C++ bindings and query languages for object-relational mapping products would be similar. Notice that all the code is C++, with the exception of the query string. You will not find a database sub-language in this example. The part in blue relates to the animation of . More information on the . Note that the same code would used for . Transparent persistent interfaces work with both object database or object-relational mapping products.

d_Database db;
d_Transaction txn;
try {
    // perform query
     d_OQL_Query query(
         "select x from Person x where x.name = \"Doug Barry\"");
    d_Bag<d_Ref<Person> >   allDougBarrys;
    d_oql_execute(query, allDougBarrys);
    d_Iterator<d_Ref<Person> > iter = allDougBarrys.create_iterator();
    // iterate over the results
    d_Ref<Person> p;
    while( iter.next(p) ){
       // do some addition processing on the person (not shown)
       // now traverse to the address object and update its value
       p->address.street = "13504 4th Avenue South";
//exception handling would go here ...

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