NHibernate generic component

How can I create generic component mapping in NHibernate, I have a class Pair{virtual T First{get;set}, virtual T Second{get;set;}}, I am trying to map it with something like this which is not working

From stackoverflow

• I think you can map the class, but you in the mapping you have to explicitly declare which type will be use as the generic parameter, like this:

      <class name="GenericClass`1[ConcreteType], assembly"
        table="table">
       <id name="Id">
        <generator class="identity"/>
       </id>
      </class>
  

  in your case, I guess it will be:

      <class name="Pair`1[Namespace.TheClass], assembly"
        table="table">
       <id name="Id">
        <generator class="identity"/>
       </id>
   <many-to-one name="First" class="Namespace.TheClass, assembly"/>
      </class>
  

  as a component:

  <component name="Property" class="Pair`1[Namespace.TheClass], assembly">
   <many-to-one name="First" class="Namespace.TheClass, assembly"/>
  </component>
  

  And if you want to use the same generic class, or component with another type as generic parameter, you have to create another mapping for that specific case.

• It worked, trick was I had to use `, whereas I was using '