public DataContextSupervisor(Func<ReadOnlyDictionary<string, DataSource>> dataSourcesProvider,
ITerminationPolicy terminationPolicy = null)
{
if (dataSourcesProvider == null) throw new ArgumentNullException("dataSourcesProvider");
this.dataSourcesProvider = dataSourcesProvider;
this.terminationPolicy = terminationPolicy ?? new ImmediateTerminationPolicy();
}
public DataContext([NotNull] UnitOfWorkConfig configuration, [NotNull] Lazy<IDataSession> session, [NotNull] ITerminationPolicy terminationPolicy)
{
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
if (session == null)
{
throw new ArgumentNullException("session");
}
if (terminationPolicy == null)
{
throw new ArgumentNullException("terminationPolicy");
}
this.configuration = configuration;
this.session = session;
this.terminationPolicy = terminationPolicy;
extra = new ExpandoObject();
((dynamic)extra).Extensions = new Dictionary<string, object>();
}
public OperationScope(ITerminationPolicy terminationPolicy = null)
{
this.terminationPolicy = terminationPolicy ?? new DeferredTerminationPolicy();
InternalEnvironment.RegisterOperationScope(this.terminationPolicy);
}
internal static void RegisterOperationScope(ITerminationPolicy policy)
{
if (policy == null)
{
throw new ArgumentNullException("policy");
}
if (LogicContext.FindData(OperationScopeKey) != null)
{
throw new Exception("Operation scope does not support nesting.");
}
if (LogicContext.FindData(DataContextSupervisorKey) != null)
{
throw new Exception("Operation scope can not be used inside of unit of work.");
}
LogicContext.SetData(OperationScopeKey, new object());
var supervisor = new DataContextSupervisor(() => new ReadOnlyDictionary<string, DataSource>(dataSources), policy);
LogicContext.SetData(DataContextSupervisorKey, supervisor);
}
