protected AbstractActions(JET_INSTANCE instance, ColumnsInformation columnsInformation, string database, Guid instanceId)
{
logger = LogManager.GetLogger(GetType());
try
{
this.instanceId = instanceId;
ColumnsInformation = columnsInformation;
session = new Session(instance);
transaction = new Transaction(session);
Api.JetOpenDatabase(session, database, null, out dbid, OpenDatabaseGrbit.None);
queues = new EsentTable(session, new Table(session, dbid, "queues", OpenTableGrbit.None));
subqueues = new EsentTable(session, new Table(session, dbid, "subqueues", OpenTableGrbit.None));
txs = new EsentTable(session, new Table(session, dbid, "transactions", OpenTableGrbit.None));
recovery = new EsentTable(session, new Table(session, dbid, "recovery", OpenTableGrbit.None));
outgoing = new EsentTable(session, new Table(session, dbid, "outgoing", OpenTableGrbit.None));
outgoingHistory = new EsentTable(session, new Table(session, dbid, "outgoing_history", OpenTableGrbit.None));
recveivedMsgs = new EsentTable(session, new Table(session, dbid, "recveived_msgs", OpenTableGrbit.None));
}
catch (Exception)
{
Dispose();
throw;
}
}
private void FillTable(EsentTable table)
{
Properties.Rows.Add(nameof(table.Name), table.Name);
Properties.Rows.Add(nameof(table.Opened), table.Opened);
Properties.Rows.Add(nameof(table.Database), table.Database.Name);
Properties.Rows.Add("Rows", table.Count);
Properties.Rows.Add(nameof(table.Columns), table.Columns.Count);
Properties.Rows.Add(nameof(table.Indexes), table.Indexes.Count);
}
public QueueActions(Session session, JET_DBID dbid, string queueName, string[] subqueues, AbstractActions actions, Action<int> changeNumberOfMessages)
{
_queueName = queueName;
_subqueues = subqueues;
_actions = actions;
_changeNumberOfMessages = changeNumberOfMessages;
var msgs = new Table(session, dbid, queueName, OpenTableGrbit.None);
var msgsHistory = new Table(session, dbid, queueName + "_history", OpenTableGrbit.None);
_messages = new EsentTable(session, msgs);
_messageHistory = new EsentTable(session, msgsHistory);
}
protected void ClearMultiValue(EsentTable table, JET_COLUMNID columnid)
{
var cnt = GetMultiValueCount(table, columnid);
var si = new JET_SETINFO()
{
itagSequence = 1
};
for (var i = 0; i < cnt; i++)
{
Api.JetSetColumn(table.Session, table.Table, columnid, null, 0, SetColumnGrbit.None, si);
}
}
/// <summary>
/// Перечислить значения в столбце со многоими значениями.
/// </summary>
/// <param name="table">Таблица.</param>
/// <param name="columnid">Идентификатор столбца.</param>
/// <param name="factoryFunc">Фабрика создания значений для получения данных.</param>
/// <returns>Результат.</returns>
protected IEnumerable <ColumnValue> EnumMultivalueColumn(EsentTable table, JET_COLUMNID columnid, Func <ColumnValue> factoryFunc)
{
var count = GetMultiValueCount(table, columnid);
if (count == 0)
{
yield break;
}
var a = new ColumnValue[1];
for (var i = 1; i <= count; i++)
{
var col = factoryFunc();
col.ItagSequence = i;
col.Columnid = columnid;
a[0] = col;
Api.RetrieveColumns(table.Session, table.Table, a);
yield return(col);
}
}
/// <summary>
/// Перечислить значения в столбце со многоими значениями.
/// </summary>
/// <param name="table">Таблица.</param>
/// <param name="columnid">Идентификатор столбца.</param>
/// <param name="grbit">Флаг получения.</param>
/// <returns>Результат.</returns>
protected IEnumerable <T> EnumMultivalueColumn <T>(EsentTable table, JET_COLUMNID columnid, RetrieveColumnGrbit grbit = RetrieveColumnGrbit.None) where T : ColumnValue, new()
{
var count = GetMultiValueCount(table, columnid);
if (count == 0)
{
yield break;
}
var a = new ColumnValue[1];
for (var i = 1; i <= count; i++)
{
var col = new T
{
ItagSequence = i,
Columnid = columnid,
RetrieveGrbit = grbit
};
a[0] = col;
Api.RetrieveColumns(table.Session, table.Table, a);
yield return(col);
}
}
internal void ClearTable(EsentTable table)
{
var enumerator = table.GetEnumerator();
while (enumerator.MoveNext())
{
table.Delete();
}
}
