/// <summary>Loads a Type 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 Type Table.
ServerDataModel.TypeDataTable typeTable = ServerDataModel.Type;
// Extract the parameters from the command batch.
AdoTransaction adoTransaction = parameters["adoTransaction"];
SqlTransaction sqlTransaction = parameters["sqlTransaction"];
object configurationId = parameters["configurationId"].Value;
string description = parameters["description"];
object externalId0 = parameters["externalId0"].Value;
string specification = parameters["specification"];
string typeCode = parameters["typeCode"];
// The row versioning is largely disabled for external operations.
long rowVersion = long.MinValue;
// Find the record using the unique identifier. If it doesn't exist, it will be inserted, if it does exist,
// it will be updated.
ServerDataModel.TypeRow typeRow = typeTable.FindByTypeCode(typeCode);
if ((typeRow == null))
{
// Call the internal 'Insert' method to complete the operation.
MarkThree.Quasar.Core.Type.Insert(adoTransaction, sqlTransaction, ref rowVersion, description, externalId0, specification, typeCode);
}
else
{
// This will bypass the optimistic concurrency checking required by the internal method.
rowVersion = ((long)(typeRow[typeTable.RowVersionColumn]));
// Call the internal 'Update' method to complete the operation.
MarkThree.Quasar.Core.Type.Update(adoTransaction, sqlTransaction, ref rowVersion, description, externalId0, specification, typeCode);
}
// Return values
parameters["rowVersion"] = rowVersion;
}
/// <summary>Inserts a Type record.</summary>
/// <param name="transaction">Commits or rejects a set of commands as a unit</param>
/// <param name="description">The value for the Description column.</param>
/// <param name="externalId0">The value for the ExternalId0 column.</param>
/// <param name="specification">The value for the Specification column.</param>
/// <param name="typeCode">The value for the TypeCode column.</param>
public static void Insert(AdoTransaction adoTransaction, SqlTransaction sqlTransaction, ref long rowVersion, string description, object externalId0, string specification, string typeCode)
{
// Accessor for the Type Table.
ServerDataModel.TypeDataTable typeTable = ServerDataModel.Type;
// Apply Defaults
if ((externalId0 == null))
{
externalId0 = System.DBNull.Value;
}
// Increment the row version
rowVersion = ServerDataModel.RowVersion.Increment();
// Insert the record into the ADO database.
ServerDataModel.TypeRow typeRow = typeTable.NewTypeRow();
typeRow[typeTable.RowVersionColumn] = rowVersion;
typeRow[typeTable.DescriptionColumn] = description;
typeRow[typeTable.ExternalId0Column] = externalId0;
typeRow[typeTable.SpecificationColumn] = specification;
typeRow[typeTable.TypeCodeColumn] = typeCode;
typeTable.AddTypeRow(typeRow);
adoTransaction.DataRows.Add(typeRow);
// Insert the record into the SQL database.
SqlCommand sqlCommand = new SqlCommand("insert \"Type\" (\"rowVersion\",\"Description\",\"ExternalId0\",\"Specification\",\"TypeCode" +
"\") values (@rowVersion,@description,@externalId0,@specification,@typeCode)");
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("@description", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, description));
sqlCommand.Parameters.Add(new SqlParameter("@externalId0", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, externalId0));
sqlCommand.Parameters.Add(new SqlParameter("@specification", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, specification));
sqlCommand.Parameters.Add(new SqlParameter("@typeCode", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, typeCode));
sqlCommand.ExecuteNonQuery();
}
/// <summary>Archives a Type 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="typeCode">The value for the TypeCode 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, string typeCode)
{
// Accessor for the Type Table.
ServerDataModel.TypeDataTable typeTable = ServerDataModel.Type;
// Rule #1: Make sure the record exists before updating it.
ServerDataModel.TypeRow typeRow = typeTable.FindByTypeCode(typeCode);
if ((typeRow == null))
{
throw new Exception(string.Format("The Type table does not have an element identified by {0}", typeCode));
}
// Rule #2: Optimistic Concurrency Check
if ((typeRow.RowVersion != rowVersion))
{
throw new System.Exception("This record is busy. Please try again later.");
}
// Archive the child records.
for (int index = 0; (index < typeRow.GetObjectRows().Length); index = (index + 1))
{
ServerDataModel.ObjectRow childObjectRow = typeRow.GetObjectRows()[index];
Object.Archive(adoTransaction, sqlTransaction, childObjectRow.RowVersion, childObjectRow.ObjectId);
}
// Increment the row version
rowVersion = ServerDataModel.RowVersion.Increment();
// Delete the record in the ADO database.
typeRow[typeTable.RowVersionColumn] = rowVersion;
adoTransaction.DataRows.Add(typeRow);
typeRow.Delete();
// Archive the record in the SQL database.
SqlCommand sqlCommand = new SqlCommand("update \"Type\" set \"IsArchived\" = 1 where \"TypeCode\"=@typeCode");
sqlCommand.Connection = sqlTransaction.Connection;
sqlCommand.Transaction = sqlTransaction;
sqlCommand.Parameters.Add(new SqlParameter("@typeCode", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, typeCode));
sqlCommand.ExecuteNonQuery();
}
/// <summary>Initializes the static elements of an Object.</summary>
static Type()
{
// The table must be locked before the indices can be read into an accelerator array.
ServerDataModel.TypeLock.AcquireReaderLock(System.Threading.Timeout.Infinite);
// Accessor for the Type Table.
ServerDataModel.TypeDataTable typeTable = ServerDataModel.Type;
// This does an indirect lookup operation using the views created for the ExternalId columns. Take the index of the user
// identifier column calcualted above and use it to find a record containing the external identifier.
Type.externalKeyArray = new DataView[] {
typeTable.KeyTypeExternalId0};
// The table must be released after the array is constructed.
ServerDataModel.TypeLock.ReleaseReaderLock();
}
/// <summary>Updates a Type 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="description">The value for the Description column.</param>
/// <param name="externalId0">The value for the ExternalId0 column.</param>
/// <param name="specification">The value for the Specification column.</param>
/// <param name="typeCode">The value for the TypeCode column.</param>
public static void Update(AdoTransaction adoTransaction, SqlTransaction sqlTransaction, ref long rowVersion, object description, object externalId0, object specification, string typeCode)
{
// Accessor for the Type Table.
ServerDataModel.TypeDataTable typeTable = ServerDataModel.Type;
// Rule #1: Make sure the record exists before updating it.
ServerDataModel.TypeRow typeRow = typeTable.FindByTypeCode(typeCode);
if ((typeRow == null))
{
throw new Exception(string.Format("The Type table does not have an element identified by {0}", typeCode));
}
// Rule #2: Optimistic Concurrency Check
if ((typeRow.RowVersion != rowVersion))
{
throw new System.Exception("This record is busy. Please try again later.");
}
// Apply Defaults
if ((description == null))
{
description = typeRow[typeTable.DescriptionColumn];
}
if ((externalId0 == null))
{
externalId0 = typeRow[typeTable.ExternalId0Column];
}
if ((specification == null))
{
specification = typeRow[typeTable.SpecificationColumn];
}
// Increment the row version
rowVersion = ServerDataModel.RowVersion.Increment();
// Update the record in the ADO database.
typeRow[typeTable.RowVersionColumn] = rowVersion;
typeRow[typeTable.DescriptionColumn] = description;
typeRow[typeTable.ExternalId0Column] = externalId0;
typeRow[typeTable.SpecificationColumn] = specification;
adoTransaction.DataRows.Add(typeRow);
// Update the record in the SQL database.
SqlCommand sqlCommand = new SqlCommand("update \"Type\" set \"RowVersion\"=@rowVersion,\"Description\"=@description,\"ExternalId" +
"0\"=@externalId0,\"Specification\"=@specification where \"TypeCode\"=@typeCode");
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("@description", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, description));
sqlCommand.Parameters.Add(new SqlParameter("@externalId0", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, externalId0));
sqlCommand.Parameters.Add(new SqlParameter("@specification", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, specification));
sqlCommand.Parameters.Add(new SqlParameter("@typeCode", SqlDbType.NVarChar, 0, ParameterDirection.Input, false, 0, 0, null, DataRowVersion.Current, typeCode));
// Update the record in the SQL database.
sqlCommand.ExecuteNonQuery();
}
/// <summary>Archives a Type 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 Type Table.
ServerDataModel.TypeDataTable typeTable = ServerDataModel.Type;
// Extract the parameters from the command batch.
AdoTransaction adoTransaction = parameters["adoTransaction"];
SqlTransaction sqlTransaction = parameters["sqlTransaction"];
object configurationId = parameters["configurationId"].Value;
string typeCode = parameters["typeCode"];
// 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.TypeRow typeRow = typeTable.FindByTypeCode(typeCode);
rowVersion = ((long)(typeRow[typeTable.RowVersionColumn]));
// Call the internal method to complete the operation.
MarkThree.Quasar.Core.Type.Archive(adoTransaction, sqlTransaction, rowVersion, typeCode);
}
/// <summary>Finds a a Type record using a configuration and an external identifier.</summary>
/// <param name="configurationId">Specified which mappings (user id columns) to use when looking up external identifiers.</param>
/// <param name="parameterId">The name of the parameter as specified in the configuration table.</param>
/// <param name="externalId">The external (user supplied) identifier for the record.</param>
public static string FindKey(object configurationId, string parameterId, object externalId)
{
// A missing key will never match a column.
if ((externalId == null))
{
return string.Empty;
}
// Accessor for the Type Table.
ServerDataModel.TypeDataTable typeTable = ServerDataModel.Type;
// Look for the record using the external identifier. The configuration selected the key to use, which effectively
// selected the external id column to use for the search. If a record is found in the view, a translation still needs
// to be made back to the original table before an index to the record can be returned to the caller.
int externalKeyIndex = Type.GetExternalKeyIndex(configurationId, parameterId);
System.Data.DataView externalKeyView = Type.externalKeyArray[externalKeyIndex];
int recordIndex = externalKeyView.Find(new object[] {
externalId});
if ((recordIndex == -1))
{
return string.Empty;
}
return ((string)(externalKeyView[recordIndex].Row[typeTable.TypeCodeColumn]));
}
/// <summary>Updates a Type 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 Type Table.
ServerDataModel.TypeDataTable typeTable = ServerDataModel.Type;
// Extract the parameters from the command batch.
AdoTransaction adoTransaction = parameters["adoTransaction"];
SqlTransaction sqlTransaction = parameters["sqlTransaction"];
object configurationId = parameters["configurationId"].Value;
object description = parameters["description"].Value;
object specification = parameters["specification"].Value;
string externalTypeCode = parameters["typeCode"];
// The row versioning is largely disabled for external operations.
long rowVersion = long.MinValue;
// Resolve External Identifiers
string typeCode = Type.FindRequiredKey(configurationId, "typeCode", externalTypeCode);
// This will bypass the internal optimistic concurrency checking by providing the current rowVersion to the
// internal method.
ServerDataModel.TypeRow typeRow = typeTable.FindByTypeCode(typeCode);
rowVersion = ((long)(typeRow[typeTable.RowVersionColumn]));
// Call the internal method to complete the operation.
MarkThree.Quasar.Core.Type.Update(adoTransaction, sqlTransaction, ref rowVersion, description, null, specification, typeCode);
// Return values.
parameters["rowVersion"] = rowVersion;
}
