/// <summary>
/// Register UDF with no input argument, e.g:
/// SqlContext.RegisterFunction<bool>("MyFilter", () => true);
/// sqlContext.Sql("SELECT * FROM MyTable where MyFilter()");
/// </summary>
/// <typeparam name="RT"></typeparam>
/// <param name="name"></param>
/// <param name="f"></param>
public void RegisterFunction <RT>(string name, Func <RT> f)
{
logger.LogInfo("Name of the function to register {0}, method info", name, f.Method);
Func <int, IEnumerable <dynamic>, IEnumerable <dynamic> > udfHelper = new UdfHelper <RT>(f).Execute;
sqlContextProxy.RegisterFunction(name, SparkContext.BuildCommand(new CSharpWorkerFunc(udfHelper), SerializedMode.Row, SerializedMode.Row), Functions.GetReturnType(typeof(RT)));
}
/// <summary>
/// Register UDF with no input argument, e.g:
/// sqlContext.RegisterFunction<bool>("MyFilter", () => true);
/// sqlContext.Sql("SELECT * FROM MyTable where MyFilter()");
/// </summary>
/// <typeparam name="RT"></typeparam>
/// <param name="name"></param>
/// <param name="f"></param>
public void RegisterFunction <RT>(string name, Func <RT> f)
{
Func <int, IEnumerable <dynamic>, IEnumerable <dynamic> > udfHelper = new UdfHelper <RT>(f).Execute;
sqlContextProxy.RegisterFunction(name, SparkContext.BuildCommand(udfHelper, SerializedMode.Row, SerializedMode.Row), Functions.GetReturnType(typeof(RT)));
}
public void RegisterFunction(string name, byte[] command, string returnType)
{
sqlContextProxy.RegisterFunction(name, command, returnType);
}
