/// <summary>
/// Executes the specified SQL command text and binds the first row
/// selected to the specified type. If no rows are returned or if the
/// value of a simple type is null, the value specified by the default
/// result parameter will be returned instead.
/// </summary>
/// <typeparam name="T">Result type.</typeparam>
/// <param name="context">A SQL command context which includes a SELECT command.</param>
/// <param name="defaultResult">Value to return in case no data is present.</param>
/// <param name="collections">A list of IEnumerable property selectors that should be populated from the command.
/// These properties should appear in the same order as their select command.</param>
/// <returns>The result of the SQL command.</returns>
/// <param name="cancel">A token to monitor for cancellation requests.</param>
/// <exception cref="System.InvalidOperationException">Each collection argument must have a corresponding select command.</exception>
internal Task <T> ExecuteResultAsync <T>(IContext context, T defaultResult, IEnumerable <PropertyInfo> collections, CancellationToken cancel)
{
var processor = new SingleResultProcessor <T>(defaultResult, collections);
return(RunCommandAsync <T>(context, processor, cancel));
}
/// <summary>
/// Executes the specified SQL command text and binds the first row
/// selected to the specified type. If no rows are returned or if the
/// value of a simple type is null, the value specified by the default
/// result parameter will be returned instead.
/// </summary>
/// <typeparam name="T">Result type.</typeparam>
/// <param name="context">A SQL command context which includes a SELECT command.</param>
/// <param name="defaultResult">Value to return in case no data is present.</param>
/// <param name="collections">A list of IEnumerable property selectors that should be populated from the command.
/// These properties should appear in the same order as their select command.</param>
/// <returns>The result of the SQL command.</returns>
/// <exception cref="System.InvalidOperationException">Each collection argument must have a corresponding select command.</exception>
internal T ExecuteResult <T>(IContext context, T defaultResult, IEnumerable <PropertyInfo> collections)
{
var processor = new SingleResultProcessor <T>(defaultResult, collections);
return(RunCommand <T>(context, processor));
}
