/// <summary>Archives a Exchange 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="exchangeId">The value for the ExchangeId 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 exchangeId) { // Accessor for the Exchange Table. ServerMarketData.ExchangeDataTable exchangeTable = ServerMarketData.Exchange; // Rule #1: Make sure the record exists before updating it. ServerMarketData.ExchangeRow exchangeRow = exchangeTable.FindByExchangeId(exchangeId); if ((exchangeRow == null)) { throw new Exception(string.Format("The Exchange table does not have an element identified by {0}", exchangeId)); } // Rule #2: Optimistic Concurrency Check if ((exchangeRow.RowVersion != rowVersion)) { throw new System.Exception("This record is busy. Please try again later."); } // Archive the child records. for (int index = 0; (index < exchangeRow.GetEquityRows().Length); index = (index + 1)) { ServerMarketData.EquityRow childEquityRow = exchangeRow.GetEquityRows()[index]; Equity.ArchiveChildren(adoTransaction, sqlTransaction, childEquityRow.RowVersion, childEquityRow.EquityId); } // Increment the row version rowVersion = ServerMarketData.RowVersion.Increment(); // Delete the record in the ADO database. exchangeRow[exchangeTable.RowVersionColumn] = rowVersion; adoTransaction.DataRows.Add(exchangeRow); exchangeRow.Delete(); // Archive the record in the SQL database. SqlCommand sqlCommand = new SqlCommand("update \"Exchange\" set \"IsArchived\" = 1 where \"ExchangeId\"=@exchangeId"); sqlCommand.Connection = sqlTransaction.Connection; sqlCommand.Transaction = sqlTransaction; sqlCommand.Parameters.Add(new SqlParameter("@exchangeId", SqlDbType.Int, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, exchangeId)); sqlCommand.ExecuteNonQuery(); }
/// <summary>Loads a Exchange record using Metadata Parameters.</summary> /// <param name="transaction">Contains the parameters and exceptions for this command.</param> public static void Load(ParameterList parameters) { // Accessor for the Exchange Table. ServerMarketData.ExchangeDataTable exchangeTable = ServerMarketData.Exchange; // Extract the parameters from the command batch. AdoTransaction adoTransaction = parameters["adoTransaction"]; SqlTransaction sqlTransaction = parameters["sqlTransaction"]; object configurationId = parameters["configurationId"].Value; object externalExchangeId = parameters["exchangeId"].Value; object externalId0 = parameters["externalId0"].Value; object externalId1 = parameters["externalId1"].Value; object externalId2 = parameters["externalId2"].Value; object externalId3 = parameters["externalId3"].Value; string name = parameters["name"]; // The row versioning is largely disabled for external operations. The value is returned to the caller in the // event it's needed for operations within the batch. long rowVersion = long.MinValue; // Resolve External Identifiers int exchangeId = Exchange.FindKey(configurationId, "exchangeId", externalExchangeId); // The load operation will create a record if it doesn't exist, or update an existing record. The external // identifier is used to determine if a record exists with the same key. if ((exchangeId == int.MinValue)) { // Populate the 'externalId' varaibles so that the external identifier can be used to find the row when an // external method is called with the same 'configurationId' parameter. int externalKeyIndex = Exchange.GetExternalKeyIndex(configurationId, "exchangeId"); object[] externalIdArray = new object[4]; externalIdArray[externalKeyIndex] = externalExchangeId; externalId0 = externalIdArray[0]; externalId1 = externalIdArray[1]; externalId2 = externalIdArray[2]; externalId3 = externalIdArray[3]; // Call the internal method to complete the operation. MarkThree.Guardian.Core.Exchange.Insert(adoTransaction, sqlTransaction, ref rowVersion, externalId0, externalId1, externalId2, externalId3, name); } else { // 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. ServerMarketData.ExchangeRow exchangeRow = exchangeTable.FindByExchangeId(exchangeId); rowVersion = ((long)(exchangeRow[exchangeTable.RowVersionColumn])); // Call the internal method to complete the operation. MarkThree.Guardian.Core.Exchange.Update(adoTransaction, sqlTransaction, ref rowVersion, exchangeId, externalId0, externalId1, externalId2, externalId3, name); } // Return values. parameters["rowVersion"] = rowVersion; }
/// <summary>Archives a Exchange 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 Exchange Table. ServerMarketData.ExchangeDataTable exchangeTable = ServerMarketData.Exchange; // Extract the parameters from the command batch. AdoTransaction adoTransaction = parameters["adoTransaction"]; SqlTransaction sqlTransaction = parameters["sqlTransaction"]; object configurationId = parameters["configurationId"].Value; string externalExchangeId = parameters["exchangeId"]; // The row versioning is largely disabled for external operations. long rowVersion = long.MinValue; // Find the internal identifier using the primar key elements. // identifier is used to determine if a record exists with the same key. int exchangeId = Exchange.FindRequiredKey(configurationId, "exchangeId", externalExchangeId); // 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. ServerMarketData.ExchangeRow exchangeRow = exchangeTable.FindByExchangeId(exchangeId); rowVersion = ((long)(exchangeRow[exchangeTable.RowVersionColumn])); // Call the internal method to complete the operation. MarkThree.Guardian.Core.Exchange.Archive(adoTransaction, sqlTransaction, rowVersion, exchangeId); }
/// <summary>Updates a Exchange 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 Exchange Table. ServerMarketData.ExchangeDataTable exchangeTable = ServerMarketData.Exchange; // Extract the parameters from the command batch. AdoTransaction adoTransaction = parameters["adoTransaction"]; SqlTransaction sqlTransaction = parameters["sqlTransaction"]; object configurationId = parameters["configurationId"].Value; string externalExchangeId = ((string)(parameters["exchangeId"])); object name = parameters["name"].Value; // The row versioning is largely disabled for external operations. long rowVersion = long.MinValue; // Resolve External Identifiers int exchangeId = Exchange.FindRequiredKey(configurationId, "exchangeId", externalExchangeId); // 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. ServerMarketData.ExchangeRow exchangeRow = exchangeTable.FindByExchangeId(exchangeId); rowVersion = ((long)(exchangeRow[exchangeTable.RowVersionColumn])); // Call the internal method to complete the operation. MarkThree.Guardian.Core.Exchange.Update(adoTransaction, sqlTransaction, ref rowVersion, exchangeId, null, null, null, null, name); // Return values. parameters["rowVersion"] = rowVersion; }
/// <summary>Updates a Exchange 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="exchangeId">The value for the ExchangeId column.</param> /// <param name="externalId0">The value for the ExternalId0 column.</param> /// <param name="externalId1">The value for the ExternalId1 column.</param> /// <param name="externalId2">The value for the ExternalId2 column.</param> /// <param name="externalId3">The value for the ExternalId3 column.</param> /// <param name="name">The value for the Name column.</param> public static void Update(AdoTransaction adoTransaction, SqlTransaction sqlTransaction, ref long rowVersion, int exchangeId, object externalId0, object externalId1, object externalId2, object externalId3, object name) { // Accessor for the Exchange Table. ServerMarketData.ExchangeDataTable exchangeTable = ServerMarketData.Exchange; // Rule #1: Make sure the record exists before updating it. ServerMarketData.ExchangeRow exchangeRow = exchangeTable.FindByExchangeId(exchangeId); if ((exchangeRow == null)) { throw new Exception(string.Format("The Exchange table does not have an element identified by {0}", exchangeId)); } // Rule #2: Optimistic Concurrency Check if ((exchangeRow.RowVersion != rowVersion)) { throw new System.Exception("This record is busy. Please try again later."); } // Apply Defaults if ((externalId0 == null)) { externalId0 = exchangeRow[exchangeTable.ExternalId0Column]; } if ((externalId1 == null)) { externalId1 = exchangeRow[exchangeTable.ExternalId1Column]; } if ((externalId2 == null)) { externalId2 = exchangeRow[exchangeTable.ExternalId2Column]; } if ((externalId3 == null)) { externalId3 = exchangeRow[exchangeTable.ExternalId3Column]; } if ((name == null)) { name = exchangeRow[exchangeTable.NameColumn]; } // Increment the row version rowVersion = ServerMarketData.RowVersion.Increment(); // Update the record in the ADO database. exchangeRow[exchangeTable.RowVersionColumn] = rowVersion; exchangeRow[exchangeTable.ExternalId0Column] = externalId0; exchangeRow[exchangeTable.ExternalId1Column] = externalId1; exchangeRow[exchangeTable.ExternalId2Column] = externalId2; exchangeRow[exchangeTable.ExternalId3Column] = externalId3; exchangeRow[exchangeTable.NameColumn] = name; adoTransaction.DataRows.Add(exchangeRow); // Update the record in the SQL database. SqlCommand sqlCommand = new SqlCommand("update \"Exchange\" set \"RowVersion\"=@rowVersion,\"ExternalId0\"=@externalId0,\"Extern" + "alId1\"=@externalId1,\"ExternalId2\"=@externalId2,\"ExternalId3\"=@externalId3,\"Name\"" + "=@name where \"ExchangeId\"=@exchangeId"); 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("@exchangeId", SqlDbType.Int, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, exchangeId)); sqlCommand.Parameters.Add(new SqlParameter("@externalId0", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, externalId0)); sqlCommand.Parameters.Add(new SqlParameter("@externalId1", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, externalId1)); sqlCommand.Parameters.Add(new SqlParameter("@externalId2", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, externalId2)); sqlCommand.Parameters.Add(new SqlParameter("@externalId3", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, externalId3)); sqlCommand.Parameters.Add(new SqlParameter("@name", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, name)); // Update the record in the SQL database. sqlCommand.ExecuteNonQuery(); }