MultiCharts: Trading Software for Automated Trading and Backtesting

Posted: **28 May 2010**

Hi - I'm trying to create a shared map using ADE/ELCollections. It works fine locally within an indicator but I can't seem to retrieve any shared ones. I'm using Version 6.0 Beta 3. Any help would be greatly appreciated.

Thank you.

(p.s. big thanks to damageboy for the overview and Economic Events indicator that I've been using as a guide)

Code: Select all


// this is a test indicator to store and retrieve an ADE map

variables:

  test_map(MapSC.Share("TestMap")), test_map2(MapSC.New), 

  test_list(ListS.New), test_list2(ListS.New)

;



if barnumber=1 then begin

  print("symbol is: "+ symbol+", barinterval is: "+ NumToStr(ADE.BarInterval,2));   

  //add some values to the list and map

  value1=ListS.Resize(test_list, 3);

  value1=ListS.Insert(test_list, 1, "A");

  value1=ListS.Insert(test_list, 2, "B");

  value1=ListS.Insert(test_list, 3, "C");

  value1=MapSC.Put(test_map, "TestList", test_list);

  print("2nd val is: "+ ListS.Get(test_list, 2));

  print("test map/list created");



  //retrieve the values from the map (locally)

  test_map2=ADE.GetRequiredMap("TestMap", symbol, ADE.BarInterval);

  //test_list2=MapSC.Get(test_map2, "TestList");

  //print("2nd val retrieved: "+ ListS.Get(test_list2, 2));   

end;

Posted: **16 Jun 2010**

Hi everyone,
After reading through the ELCollections documentation again I found the solution I was looking for. In order to retrieve the map you simply call the MapSC.Share() method again and if it exists will return the existing one again. Below is the updated code example. In practice the retrieval section would be in a separate indicator. Hopefully this will help someone.

Kevin

Code: Select all


// this is a test indicator to store and retrieve an ADE map 

variables: 

  test_map(MapSC.Share("TestMap")), test_map2(MapSC.New), 

  test_list(ListS.New), test_list2(ListS.New) 

; 



if barnumber=1 then begin 

  print("symbol is: "+ symbol+", barinterval is: "+ NumToStr(ADE.BarInterval,2));    

  //add some values to the list and map 

  value1=ListS.Resize(test_list, 3); 

  value1=ListS.Insert(test_list, 1, "A"); 

  value1=ListS.Insert(test_list, 2, "B"); 

  value1=ListS.Insert(test_list, 3, "C"); 

  value1=MapSC.Put(test_map, "TestList", test_list); 

  print("2nd val is: "+ ListS.Get(test_list, 2)); 

  print("test map/list created"); 



  //retrieve the values from the map (locally) 

  test_map2=MapSC.Share("TestMap", symbol, ADE.BarInterval); 

  test_list2=MapSC.Get(test_map2, "TestList"); 

  print("2nd val retrieved: "+ ListS.Get(test_list2, 2));    

end;

Posted: **16 Jun 2010**

that's useful to know.
thanks for sharing

MultiCharts: Trading Software for Automated Trading and Backtesting

Sharing ADE Collections

Sharing ADE Collections