internal Query(ISession session, SqlQuery sourceQuery)
{
Session = session;
SourceQuery = sourceQuery;
Context = session.Context.CreateQueryContext();
Context.RegisterInstance <IQuery>(this);
StartedOn = DateTimeOffset.UtcNow;
metadata = GetMetadata();
}
internal Query(ISession session, SqlQuery sourceQuery)
: base(session as IEventSource)
{
Session = session;
SourceQuery = sourceQuery;
Context = session.Context.CreateQueryContext();
Context.RegisterInstance <IQuery>(this);
StartedOn = DateTimeOffset.UtcNow;
Access = new RequestAccess(this);
}
public Block(IRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
query = request as IQuery;
Context = request.CreateBlockContext();
Context.UnregisterService <IBlock>();
Context.RegisterInstance <IBlock>(this);
Parent = request as IBlock;
}
internal Block(IRequest request)
: base(request as IEventSource)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
query = request as IQuery;
Context = request.Context.CreateBlockContext();
Context.UnregisterService <IBlock>();
Context.RegisterInstance <IBlock>(this);
Parent = request as IBlock;
Access = new RequestAccess(this);
}
public SystemSession(ITransaction transaction, string currentSchema)
{
if (String.IsNullOrEmpty(currentSchema))
{
throw new ArgumentNullException("currentSchema");
}
if (transaction == null)
{
throw new ArgumentNullException("transaction");
}
CurrentSchema = currentSchema;
Transaction = transaction;
Context = transaction.Context.CreateSessionContext();
Context.RegisterInstance(this);
User = new User(this, User.SystemName);
startedOn = DateTimeOffset.UtcNow;
Access = new SessionAccess(this);
}
/// <summary>
/// Constructs the session for the given user and transaction to the
/// given database.
/// </summary>
/// <param name="transaction">A transaction that handles the commands issued by
/// the user during the session.</param>
/// <param name="userName"></param>
/// <seealso cref="ITransaction"/>
public Session(ITransaction transaction, string userName)
: base(transaction as IEventSource)
{
if (transaction == null)
{
throw new ArgumentNullException("transaction");
}
if (String.IsNullOrEmpty(userName))
{
throw new ArgumentNullException("userName");
}
if (String.Equals(userName, User.SystemName, StringComparison.OrdinalIgnoreCase) ||
String.Equals(userName, User.PublicName, StringComparison.OrdinalIgnoreCase))
{
throw new ArgumentException(String.Format("Cannot open a session for user '{0}'.", userName));
}
Transaction = transaction;
Context = transaction.Context.CreateSessionContext();
Context.RegisterInstance(this);
Transaction.Context.Route <QueryEvent>(OnQueryCommand);
Transaction.GetTableManager().AddInternalTables(new SessionTableContainer(this));
access = new SessionAccess(this);
if (!transaction.Database.Sessions.Add(this))
{
throw new InvalidOperationException("The session was already in the database session list");
}
User = new User(this, userName);
startedOn = DateTimeOffset.UtcNow;
this.OnEvent(new SessionEvent(SessionEventType.Begin));
}
