/// <summary>
/// Executa o salvamento propriamente dito.
/// </summary>
public void Execute()
{
sum.Reset();
try
{
if (dbConn != null)
{
CommitChanges();
}
else
{
using (dbConn = conn.CreateConnection())
{
dbConn.Open();
using (trans = dbConn.BeginTransaction(IsolationLevel.Serializable))
CommitChanges();
}
}
}
catch (ConnectorException)
{
throw;
}
catch (Exception ex)
{
throw ConnectorExceptionFactory.FromDatabaseException(ex);
}
}
protected override void CommitChanges()
{
try
{
IEnumerator en = rows.GetEnumerator();
bool hasNext = en.MoveNext();
while (hasNext)
{
DataRow row = (DataRow)en.Current;
DataTable dt = row.Table;
using (new PhysicalTableAdapter(conn, dt))
using (AdpDataAdapter da = new AdpDataAdapter())
{
if (!conn.BuildCommands(da, dbConn, dt))
{
new AdpCommandBuilder(da, dbConn, dt);
}
if (trans != null)
{
SetTransaction(da);
}
do
{
if (row.RowState == DataRowState.Added)
{
CommitInserts(dt, da, row); // HACK: otimizar para enviar todas a serem inseridas ao mesmo tempo
}
else
{
da.Update(row);
}
// repete enquanto houverem mais linhas da mesma tabela
row = (hasNext = en.MoveNext()) ? (DataRow)en.Current : null;
} while (hasNext && Object.ReferenceEquals(row.Table, dt));
}
}
}
catch (Exception ex)
{
if (ex is ConnectorException)
{
throw;
}
else
{
throw ConnectorExceptionFactory.FromDatabaseException(ex);
}
}
}
/// <summary>
/// Salva no banco de dados as alterações em uma tabela.
/// </summary>
/// <param name="dt">A tabela</param>
/// <param name="state">
/// O estado que estará sendo processado. Pode ser
/// <see cref="DataViewRowState.Added"/>,
/// <see cref="DataViewRowState.ModifiedCurrent"/> ou
/// <see cref="DataViewRowState.Deleted"/>
/// </param>
/// <returns>O número de registros atualizados</returns>
protected int CommitTable(DataTable dt, DataViewRowState state)
{
int c = 0;
if (dt != null && dt.Rows.Count > 0)
{
try
{
using (new PhysicalTableAdapter(conn, dt))
using (AdpDataAdapter da = new AdpDataAdapter())
{
DataRow[] rows = dt.Select(null, null, state);
if (rows.Length > 0)
{
if (!conn.BuildCommands(da, dbConn, dt))
{
new AdpCommandBuilder(da, dbConn, dt);
}
if (trans != null)
{
SetTransaction(da);
}
if (state == DataViewRowState.Added)
{
c += CommitInserts(dt, da, rows);
}
else
{
c += da.Update(rows);
}
}
}
}
catch (Exception ex)
{
throw ConnectorExceptionFactory.FromDatabaseException(ex).Detail("Error while updating data table named {0}", dt.TableName);
}
}
return(c);
}
