/// <summary>
/// Run query asynchronously.
/// </summary>
/// <param name="provider">
/// Query provider.
/// </param>
/// <param name="token">
/// The cancellation token that will be checked for stop reading.
/// </param>
/// <exception cref="ArgumentNullException">
/// The <paramref name="provider"/> argument has <c>null</c> value.
/// </exception>
/// <exception cref="QueryDbException">
/// Error occured during executing the query.
/// </exception>
public async Task RunAsync(DbQueryProvider provider, CancellationToken token = default)
{
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
object?[] args = MapIds(Parameters.ToArray());
try
{
await provider.ReadAsync <string>(Id, Command ?? "", args, token).ConfigureAwait(false);
}
catch (Exception exp)
{
throw new QueryDbException(Id, Command, Parameters, exp);
}
}
/// <summary>
/// Run query and count records.
/// </summary>
/// <param name="provider">
/// Query provider.
/// </param>
/// <returns>
/// Record count.
/// </returns>
/// <exception cref="ArgumentNullException">
/// The <paramref name="provider"/> argument has <c>null</c> value.
/// </exception>
/// <exception cref="QueryDbException">
/// Error occured during executing the query.
/// </exception>
public int?RunCount(DbQueryProvider provider)
{
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
object?[] args = MapIds(Parameters.ToArray());
try
{
return(provider.Query(Id, Command, args, 1).Count());
}
catch (Exception exp)
{
throw new QueryDbException(Id, Command, Parameters, exp);
}
}
/// <summary>
/// Run query.
/// </summary>
/// <param name="provider">
/// Query provider.
/// </param>
/// <exception cref="ArgumentNullException">
/// The <paramref name="provider"/> argument has <c>null</c> value.
/// </exception>
/// <exception cref="QueryDbException">
/// Error occured during executing the query.
/// </exception>
public void Run(DbQueryProvider provider)
{
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
object?[] args = MapIds(Parameters.ToArray());
try
{
provider.Read <string>(Id, Command ?? "", args);
}
catch (Exception exp)
{
throw new QueryDbException(Id, Command, Parameters, exp);
}
}
/// <summary>
/// Run query asynchronously.
/// </summary>
/// <param name="provider">
/// Query provider.
/// </param>
/// <param name="token">
/// The cancellation token that will be checked for stop reading.
/// </param>
/// <exception cref="ArgumentNullException">
/// The <paramref name="provider"/> argument has <c>null</c> value.
/// </exception>
/// <exception cref="QueryDbException">
/// Error occured during executing the query.
/// </exception>
public async Task <int?> RunCountAsync(DbQueryProvider provider, CancellationToken token = default)
{
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
object?[] args = MapIds(Parameters.ToArray());
try
{
var i = 0;
await foreach (object?[] _ in provider.QueryAsync(Id, Command ?? "", args, 1, token))
{
++i;
}
return(i);
}
catch (Exception exp)
{
throw new QueryDbException(Id, Command, Parameters, exp);
}
}
