/// <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();
}
/// <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;
}
/// <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);
}
/// <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();
}
/// <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();
}