Question

I have created a composite key, and it is working, but ideals I would like the separate directly fields in the row class.

The current way I’m doing this is the following:

    private UserPrimaryKey _compositeKey;
    public virtual UserPrimaryKey CompositeKey
    {
        get
        {
            if (_compositeKey == null) _compositeKey = new UserPrimaryKey();
            return _compositeKey;
        }
        set {
            if (_compositeKey == value) return;
            _compositeKey = value;
            Host = value.Host;
            UserAccount = value.User;
        }
    }
    public string Host { get; set; }
    public string UserAccount { get; set; }

And i was wondering if there is any better way of doing this? Possibly in NHibernate config file.

My current config file is the follwoing:

<class name="TGS.MySQL.DataBaseObjects.DataBasePrivilege,TGS.MySQL.DataBaseObjects" table="user">
 <composite-id name="CompositeKey" class="TGS.MySQL.DataBaseObjects.UserPrimaryKey, TGS.MySQL.DataBaseObjects">
  <key-property name="Host" column="Host" type="string" length="60" />
  <key-property name="User" column="User" type="string" length="16" />
 </composite-id>
</class>

Answer 1

You can create the properties directly in your class… and map them with:

<composite-id>
  <key-property name="Host"/>
  <key-property name="UserAccount"/>
</composite-id>

If you do that, you’ll have to override Equals and GetHashCode in your class.