コード例 #1
0
        /// <summary>Archives a Price record.</summary>
        /// <param name="transaction">Commits or rejects a set of commands as a unit</param>
        /// <param name="RowVersion">The version number of this row.</param>
        /// <param name="securityId">The value for the SecurityId column.</param>
        /// <param name="currencyId">The value for the CurrencyId column.</param>
        /// <param name="archive">true to archive the object, false to unarchive it.</param>
        public static void Archive(AdoTransaction adoTransaction, SqlTransaction sqlTransaction, long rowVersion, int securityId, int currencyId)
        {
            // Accessor for the Price Table.
            ServerDataModel.PriceDataTable priceTable = ServerDataModel.Price;
            // Rule #1: Make sure the record exists before updating it.
            ServerDataModel.PriceRow priceRow = priceTable.FindBySecurityIdCurrencyId(securityId, currencyId);
            if ((priceRow == null))
            {
                throw new Exception(string.Format("The Price table does not have an element identified by {0}{0}", securityId, currencyId));
            }
            // Rule #2: Optimistic Concurrency Check
            if ((priceRow.RowVersion != rowVersion))
            {
                throw new System.Exception("This record is busy.  Please try again later.");
            }
            // Archive the child records.
            // Increment the row version
            rowVersion = ServerDataModel.RowVersion.Increment();
            // Delete the record in the ADO database.
            priceRow[priceTable.RowVersionColumn] = rowVersion;
            adoTransaction.DataRows.Add(priceRow);
            priceRow.Delete();
            // Archive the record in the SQL database.
            SqlCommand sqlCommand = new SqlCommand("update \"Price\" set \"IsArchived\" = 1 where \"SecurityId\"=@securityId and \"CurrencyI" +
                                                   "d\"=@currencyId");

            sqlCommand.Connection  = sqlTransaction.Connection;
            sqlCommand.Transaction = sqlTransaction;
            sqlCommand.Parameters.Add(new SqlParameter("@securityId", SqlDbType.Int, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, securityId));
            sqlCommand.Parameters.Add(new SqlParameter("@currencyId", SqlDbType.Int, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, currencyId));
            sqlCommand.ExecuteNonQuery();
        }
コード例 #2
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 /// <summary>Updates a Price record using Metadata Parameters.</summary>
 /// <param name="transaction">Contains the parameters and exceptions for this command.</param>
 public static void Update(ParameterList parameters)
 {
     // Accessor for the Price Table.
     ServerDataModel.PriceDataTable priceTable = ServerDataModel.Price;
     // Extract the parameters from the command batch.
     AdoTransaction adoTransaction = parameters["adoTransaction"];
     SqlTransaction sqlTransaction = parameters["sqlTransaction"];
     object configurationId = parameters["configurationId"].Value;
     string externalSecurityId = parameters["securityId"];
     string externalCurrencyId = parameters["currencyId"];
     object closePrice = parameters["closePrice"].Value;
     object priceChange = parameters["priceChange"].Value;
     object lastPrice = parameters["lastPrice"].Value;
     object lastSize = parameters["lastSize"].Value;
     object bidPrice = parameters["bidPrice"].Value;
     object bidSize = parameters["bidSize"].Value;
     object askPrice = parameters["askPrice"].Value;
     object askSize = parameters["askSize"].Value;
     // The row versioning is largely disabled for external operations.
     long rowVersion = long.MinValue;
     // Resolve External Identifiers
     int securityId = Security.FindRequiredKey(configurationId, "securityId", externalSecurityId);
     int currencyId = Currency.FindRequiredKey(configurationId, "currencyId", externalCurrencyId);
     // This will bypass the internal optimistic concurrency checking by providing the current rowVersion to the 
     // internal method.
     ServerDataModel.PriceRow priceRow = priceTable.FindBySecurityIdCurrencyId(securityId, currencyId);
     rowVersion = ((long)(priceRow[priceTable.RowVersionColumn]));
     // Call the internal method to complete the operation.
     MarkThree.Quasar.Core.Price.Update(adoTransaction, sqlTransaction, ref rowVersion, securityId, currencyId, closePrice, priceChange, lastPrice, lastSize, bidPrice, bidSize, askPrice, askSize);
     // Return values.
     parameters["rowVersion"] = rowVersion;
 }
コード例 #3
0
 /// <summary>Archives a Price record using Metadata Parameters.</summary>
 /// <param name="transaction">Contains the parameters and exceptions for this command.</param>
 public static void Archive(ParameterList parameters)
 {
     // Accessor for the Price Table.
     ServerDataModel.PriceDataTable priceTable = ServerDataModel.Price;
     // Extract the parameters from the command batch.
     AdoTransaction adoTransaction = parameters["adoTransaction"];
     SqlTransaction sqlTransaction = parameters["sqlTransaction"];
     object configurationId = parameters["configurationId"].Value;
     string externalSecurityId = parameters["securityId"];
     string externalCurrencyId = parameters["currencyId"];
     // Resolve External Identifiers
     int securityId = Security.FindRequiredKey(configurationId, "securityId", externalSecurityId);
     int currencyId = Currency.FindRequiredKey(configurationId, "currencyId", externalCurrencyId);
     // The row versioning is largely disabled for external operations.
     long rowVersion = long.MinValue;
     // While the optimistic concurrency checking is disabled for the external methods, the internal methods
     // still need to perform the check.  This ncurrency checking logic by finding the current row version to be
     // will bypass the coused when the internal method is called.
     ServerDataModel.PriceRow priceRow = priceTable.FindBySecurityIdCurrencyId(securityId, currencyId);
     rowVersion = ((long)(priceRow[priceTable.RowVersionColumn]));
     // Call the internal method to complete the operation.
     MarkThree.Quasar.Core.Price.Archive(adoTransaction, sqlTransaction, rowVersion, securityId, currencyId);
 }
コード例 #4
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        /// <summary>Inserts a Price record.</summary>
        /// <param name="transaction">Commits or rejects a set of commands as a unit</param>
        /// <param name="securityId">The value for the SecurityId column.</param>
        /// <param name="currencyId">The value for the CurrencyId column.</param>
        /// <param name="closePrice">The value for the ClosePrice column.</param>
        /// <param name="priceChange">The value for the PriceChange column.</param>
        /// <param name="lastPrice">The value for the LastPrice column.</param>
        /// <param name="lastSize">The value for the LastSize column.</param>
        /// <param name="bidPrice">The value for the BidPrice column.</param>
        /// <param name="bidSize">The value for the BidSize column.</param>
        /// <param name="askPrice">The value for the AskPrice column.</param>
        /// <param name="askSize">The value for the AskSize column.</param>
        public static void Insert(AdoTransaction adoTransaction, SqlTransaction sqlTransaction, ref long rowVersion, int securityId, int currencyId, object closePrice, object priceChange, object lastPrice, object lastSize, object bidPrice, object bidSize, object askPrice, object askSize)
        {
            // Accessor for the Price Table.
            ServerDataModel.PriceDataTable priceTable = ServerDataModel.Price;
            // Apply Defaults
            if ((closePrice == null))
            {
                closePrice = 0.0m;
            }
            if ((priceChange == null))
            {
                priceChange = 0.0m;
            }
            if ((lastPrice == null))
            {
                lastPrice = 0.0m;
            }
            if ((lastSize == null))
            {
                lastSize = 0.0m;
            }
            if ((bidPrice == null))
            {
                bidPrice = 0.0m;
            }
            if ((bidSize == null))
            {
                bidSize = 0.0m;
            }
            if ((askPrice == null))
            {
                askPrice = 0.0m;
            }
            if ((askSize == null))
            {
                askSize = 0.0m;
            }
            // Increment the row version
            rowVersion = ServerDataModel.RowVersion.Increment();
            // Insert the record into the ADO database.
            ServerDataModel.PriceRow priceRow = priceTable.NewPriceRow();
            priceRow[priceTable.RowVersionColumn]  = rowVersion;
            priceRow[priceTable.SecurityIdColumn]  = securityId;
            priceRow[priceTable.CurrencyIdColumn]  = currencyId;
            priceRow[priceTable.ClosePriceColumn]  = closePrice;
            priceRow[priceTable.PriceChangeColumn] = priceChange;
            priceRow[priceTable.LastPriceColumn]   = lastPrice;
            priceRow[priceTable.LastSizeColumn]    = lastSize;
            priceRow[priceTable.BidPriceColumn]    = bidPrice;
            priceRow[priceTable.BidSizeColumn]     = bidSize;
            priceRow[priceTable.AskPriceColumn]    = askPrice;
            priceRow[priceTable.AskSizeColumn]     = askSize;
            priceTable.AddPriceRow(priceRow);
            adoTransaction.DataRows.Add(priceRow);
            // Insert the record into the SQL database.
            SqlCommand sqlCommand = new SqlCommand("insert \"Price\" (\"rowVersion\",\"SecurityId\",\"CurrencyId\",\"ClosePrice\",\"LastPrice\",\"" +
                                                   "LastSize\",\"BidPrice\",\"BidSize\",\"AskPrice\",\"AskSize\") values (@rowVersion,@securi" +
                                                   "tyId,@currencyId,@closePrice,@lastPrice,@lastSize,@bidPrice,@bidSize,@askPrice,@" +
                                                   "askSize)");

            sqlCommand.Connection  = sqlTransaction.Connection;
            sqlCommand.Transaction = sqlTransaction;
            sqlCommand.Parameters.Add(new SqlParameter("@rowVersion", SqlDbType.BigInt, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, rowVersion));
            sqlCommand.Parameters.Add(new SqlParameter("@securityId", SqlDbType.Int, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, securityId));
            sqlCommand.Parameters.Add(new SqlParameter("@currencyId", SqlDbType.Int, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, currencyId));
            sqlCommand.Parameters.Add(new SqlParameter("@closePrice", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, closePrice));
            sqlCommand.Parameters.Add(new SqlParameter("@lastPrice", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, lastPrice));
            sqlCommand.Parameters.Add(new SqlParameter("@lastSize", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, lastSize));
            sqlCommand.Parameters.Add(new SqlParameter("@bidPrice", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, bidPrice));
            sqlCommand.Parameters.Add(new SqlParameter("@bidSize", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, bidSize));
            sqlCommand.Parameters.Add(new SqlParameter("@askPrice", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, askPrice));
            sqlCommand.Parameters.Add(new SqlParameter("@askSize", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, askSize));
            sqlCommand.ExecuteNonQuery();
        }
コード例 #5
0
        /// <summary>Updates a Price record.</summary>
        /// <param name="transaction">Commits or rejects a set of commands as a unit</param>
        /// <param name="rowVersion">The version number of the row</param>
        /// <param name="securityId">The value for the SecurityId column.</param>
        /// <param name="currencyId">The value for the CurrencyId column.</param>
        /// <param name="closePrice">The value for the ClosePrice column.</param>
        /// <param name="priceChange">The value for the PriceChange column.</param>
        /// <param name="lastPrice">The value for the LastPrice column.</param>
        /// <param name="lastSize">The value for the LastSize column.</param>
        /// <param name="bidPrice">The value for the BidPrice column.</param>
        /// <param name="bidSize">The value for the BidSize column.</param>
        /// <param name="askPrice">The value for the AskPrice column.</param>
        /// <param name="askSize">The value for the AskSize column.</param>
        public static void Update(AdoTransaction adoTransaction, SqlTransaction sqlTransaction, ref long rowVersion, int securityId, int currencyId, object closePrice, object priceChange, object lastPrice, object lastSize, object bidPrice, object bidSize, object askPrice, object askSize)
        {
            // Accessor for the Price Table.
            ServerDataModel.PriceDataTable priceTable = ServerDataModel.Price;
            // Rule #1: Make sure the record exists before updating it.
            ServerDataModel.PriceRow priceRow = priceTable.FindBySecurityIdCurrencyId(securityId, currencyId);
            if ((priceRow == null))
            {
                throw new Exception(string.Format("The Price table does not have an element identified by {0}{0}", securityId, currencyId));
            }
            // Rule #2: Optimistic Concurrency Check
            if ((priceRow.RowVersion != rowVersion))
            {
                throw new System.Exception("This record is busy.  Please try again later.");
            }
            // Apply Defaults
            if ((closePrice == null))
            {
                closePrice = priceRow[priceTable.ClosePriceColumn];
            }
            if ((priceChange == null))
            {
                priceChange = priceRow[priceTable.PriceChangeColumn];
            }
            if ((lastPrice == null))
            {
                lastPrice = priceRow[priceTable.LastPriceColumn];
            }
            if ((lastSize == null))
            {
                lastSize = priceRow[priceTable.LastSizeColumn];
            }
            if ((bidPrice == null))
            {
                bidPrice = priceRow[priceTable.BidPriceColumn];
            }
            if ((bidSize == null))
            {
                bidSize = priceRow[priceTable.BidSizeColumn];
            }
            if ((askPrice == null))
            {
                askPrice = priceRow[priceTable.AskPriceColumn];
            }
            if ((askSize == null))
            {
                askSize = priceRow[priceTable.AskSizeColumn];
            }
            // Increment the row version
            rowVersion = ServerDataModel.RowVersion.Increment();
            // Update the record in the ADO database.
            priceRow[priceTable.RowVersionColumn]  = rowVersion;
            priceRow[priceTable.ClosePriceColumn]  = closePrice;
            priceRow[priceTable.PriceChangeColumn] = priceChange;
            priceRow[priceTable.LastPriceColumn]   = lastPrice;
            priceRow[priceTable.LastSizeColumn]    = lastSize;
            priceRow[priceTable.BidPriceColumn]    = bidPrice;
            priceRow[priceTable.BidSizeColumn]     = bidSize;
            priceRow[priceTable.AskPriceColumn]    = askPrice;
            priceRow[priceTable.AskSizeColumn]     = askSize;
            adoTransaction.DataRows.Add(priceRow);
            // Update the record in the SQL database.
            SqlCommand sqlCommand = new SqlCommand("update \"Price\" set \"RowVersion\"=@rowVersion,\"ClosePrice\"=@closePrice,\"LastPrice\"=" +
                                                   "@lastPrice,\"LastSize\"=@lastSize,\"BidPrice\"=@bidPrice,\"BidSize\"=@bidSize,\"AskPric" +
                                                   "e\"=@askPrice,\"AskSize\"=@askSize where \"SecurityId\"=@securityId and \"CurrencyId\"=" +
                                                   "@currencyId");

            sqlCommand.Connection  = sqlTransaction.Connection;
            sqlCommand.Transaction = sqlTransaction;
            sqlCommand.Parameters.Add(new SqlParameter("@rowVersion", SqlDbType.BigInt, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, rowVersion));
            sqlCommand.Parameters.Add(new SqlParameter("@securityId", SqlDbType.Int, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, securityId));
            sqlCommand.Parameters.Add(new SqlParameter("@currencyId", SqlDbType.Int, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, currencyId));
            sqlCommand.Parameters.Add(new SqlParameter("@closePrice", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, closePrice));
            sqlCommand.Parameters.Add(new SqlParameter("@lastPrice", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, lastPrice));
            sqlCommand.Parameters.Add(new SqlParameter("@lastSize", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, lastSize));
            sqlCommand.Parameters.Add(new SqlParameter("@bidPrice", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, bidPrice));
            sqlCommand.Parameters.Add(new SqlParameter("@bidSize", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, bidSize));
            sqlCommand.Parameters.Add(new SqlParameter("@askPrice", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, askPrice));
            sqlCommand.Parameters.Add(new SqlParameter("@askSize", SqlDbType.Decimal, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, askSize));
            // Update the record in the SQL database.
            sqlCommand.ExecuteNonQuery();
        }