<DefaultExportAttribute(IsDefault=True, 
   ContractName="", 
   ContractType=IdeaBlade.EntityModel.Server.EntityServerSaveInterceptor)>
Public Class EntityServerSaveInterceptor 

Dim instance As EntityServerSaveInterceptor

[DefaultExportAttribute(IsDefault=true, 
   ContractName="", 
   ContractType=IdeaBlade.EntityModel.Server.EntityServerSaveInterceptor)]
public class EntityServerSaveInterceptor 

[DefaultExportAttribute(IsDefault=true, 
   ContractName="", 
   ContractType=IdeaBlade.EntityModel.Server.EntityServerSaveInterceptor)]
public ref class EntityServerSaveInterceptor 

// Server-side implementation of EntityServerSaveInterceptor          
public class EntityServerSaveManager : EntityServerSaveInterceptor  {

  // Always require explicit authorization attributes on entities.
  protected override bool DefaultAuthorization {
    get { return false; }
  }

  // Log errors to any listening loggers.
  protected override void OnError(Exception e, PersistenceFailure failureType) {
    TraceFns.WriteLine("Save error: " + e.Message);  
  }

  // Customized save logic.
  protected override bool ExecuteSave() {

    // Pre-save logic.
    var em = EntityManager;
    var addedEmps = em.FindEntities(EntityState.Added).OfType<Employee>();

    // Mark any added emps with "Added at".
    addedEmps.ForEach(emp => emp.Notes = "Added at" + DateTime.Now);

    // Execute the save.
    var ok = base.ExecuteSave();

    // After save logic.  
    if (ok) {
      // Log any type of saved to an Employee.
      var emps = EntityManager.FindEntities(EntityState.Added | EntityState.Deleted | EntityState.Modified).OfType<Employee>();
      TraceFns.WriteLine("Emps saved: " + emps.Count());
    }

    return ok;
  }
}