Hi,

I have a class called Animal which contains the property:
public virtual Guid Id { get; set; }

My mapping for this field is:
<id name="Id">
<generator class="guid" />
</id>

If I create a new instance of the class a Guid is generated for me and the item successfully persists to the DB.

However, I need to be able to also specify the Guid for the new record in code (generator class would then only be used if Id was equal to null). For example:
Animal animal = new Animal() { Id = new Guid("2c1be905-d12c-49c7-bd0a-35427ac7cbb1") };

The problem is that the generator class still creates a new Guid rather than using the Guid I supply.
Is there an easy way to achieve this?

Thanks heaps in advance.

Thanks for the reply.

But I need the Id to be auto generated for me if it is null. Additionally I need to be able to assign the value myself.

Can this be done?

Thanks in advance.

Can someone please help!

I have a solution. I need to create my own custom Id generator. Something like this

public class GuidGenerator : IIdentifierGenerator
{
#region IIdentifierGenerator Members

/// <summary>
/// Generate a new <see cref="Guid"/> for the identifier.
/// </summary>
/// <param name="session">The <see cref="ISessionImplementor"/> this id is being generated in.</param>
/// <param name="obj">The entity for which the id is being generated.</param>
/// <returns>The new identifier as a <see cref="Guid"/>.</returns>
public object Generate(ISessionImplementor session, object obj)
{
Guid value = (Guid)obj.GetType().GetProperty("Id").GetValue (obj,null);
if (value.Equals(Guid.Empty))
return Guid.NewGuid();
else
return value;
}

#endregion
}



Enjoy!