No, Entity framework code-first is still just nice wrapper around EFv4. There are no NHibernate like generators. If you want client side Id generator you will have to override SaveChanges
in derived DbContext
and implement your own logic of assigning Ids to new entities.
Edit:
Some high level example:
public class Context : DbContext
{
// Helper for example
// DO NOT USE IN REAL SCENARIOS!!!
private static int i = 0;
public DbSet<MyEntity> MyEntities { get; private set; }
public Context()
: base("connection")
{
MyEntities = Set<MyEntity>();
}
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<MyEntity>().HasKey(e => e.Id);
// Turn off autogeneration in database
modelBuilder.Entity<MyEntity>()
.Property(e => e.Id)
.HasDatabaseGeneratedOption(HasDatabaseGeneratedOption.None);
// Other mapping
}
public override int SaveChanges()
{
foreach (var entry in ChangeTracker.Entries<MyEntity>()
.Where(e => e.State == EntityState.Added))
{
// Here you have to add some logic to generate Id
// I'm using just static field
entry.Entity.Id = ++i;
}
return base.SaveChanges();
}
}
public class MyEntity
{
public int Id { get; set; }
// Other properties
}