/// <summary>
/// Create a composite identity. This is an identity composed of multiple
/// columns.
/// Note: Prefer using a surrogate key over a composite key whenever possible.
/// </summary>
/// <example>
/// CompositeId()
/// .KeyProperty(x => x.FirstName)
/// .KeyProperty(x => x.LastName);
/// </example>
public virtual CompositeIdentityPart <T> CompositeId()
{
var part = new CompositeIdentityPart <T>();
compositeId = part;
return(part);
}
/// <summary>
/// Create a composite identity represented by an identity class. This is an
/// identity composed of multiple columns.
/// Note: Prefer using a surrogate key over a composite key whenever possible.
/// </summary>
/// <param name="memberExpression">Composite id property</param>
/// <example>
/// CompositeId(x => x.Id)
/// .KeyProperty(x => x.FirstName)
/// .KeyProperty(x => x.LastName);
/// </example>
public virtual CompositeIdentityPart <TId> CompositeId <TId>(Expression <Func <T, TId> > memberExpression)
{
var part = new CompositeIdentityPart <TId>(memberExpression.ToMember().Name);
compositeId = part;
return(part);
}
public virtual CompositeIdentityPart <TId> CompositeId <TId>(Expression <Func <T, TId> > expression)
{
var part = new CompositeIdentityPart <TId>(ReflectionHelper.GetProperty(expression).Name);
compositeId = part;
return(part);
}
