/// <summary>
/// Parameterized constructor.
/// </summary>
/// <param name="saveAllChangesAtEndOfScope">
/// A boolean value that indicates whether to automatically save
/// all object changes at end of the scope.
/// </param>
public UnitOfWorkScope(bool saveAllChangesAtEndOfScope, string connectionString)
{
if (_currentScope != null && !_currentScope._isDisposed)
{
throw new InvalidOperationException("ObjectContextScope instances cannot be nested.");
}
_giornale.Debug("+Apro Unit-Of-Work");
_saveAllChangesAtEndOfScope = saveAllChangesAtEndOfScope;
/* Create a new ObjectContext instance: uso il proxy */
if (String.IsNullOrEmpty(connectionString))
{
_dbContext = new LumenEntities();
}
else
{
_dbContext = new LumenEntities(connectionString);
}
// _dbContext.Configuration.ProxyCreationEnabled = false;
_isDisposed = false;
Thread.BeginThreadAffinity();
/* Set the current scope to this UnitOfWorkScope object: */
_currentScope = this;
}
/// <summary>
/// Called on the end of the scope. Disposes the ObjectContext.
/// </summary>
public void Dispose()
{
if (!_isDisposed)
{
try {
/* End of scope, so clear the thread static
* _currentScope member: */
_currentScope = null;
Thread.EndThreadAffinity();
if (_saveAllChangesAtEndOfScope)
{
// Qui ci potrebbero essere delle eccezioni
_dbContext.SaveChanges();
}
} catch (Exception ee) {
_giornale.Error("Salvataggio sul db fallito: " + ErroriUtil.estraiMessage(ee), ee);
throw ee;
} finally {
// In ogni caso devo chiudere tutto
_dbContext.Dispose();
_dbContext = null;
_isDisposed = true;
_giornale.Debug("-Chiudo Unit-Of-Work");
}
}
else
{
_giornale.Warn("Come mai casco qui ?? Impossibile. Debuggare!");
if (System.Diagnostics.Debugger.IsAttached)
{
System.Diagnostics.Debugger.Break();
}
}
}