Spring4D dictionary and record values

[Tommi Prami 123]

Hello,

I tried to port Generics.Colllections code to using Spting4D collections instead. 

I got the  "raised exception class EInvalidCast with message '"TMyRecord" is not a class type.'" exception, are the records at all supported, or I am doing something wrong.
 

Code somethin g like that.

FRecordCache.Add(LKEyString, LMyRecord);

Created this way:
FRecordCache:= TCollections.CreateDictionary<string, TMyRecord>([doOwnsValues])

 

Never mind, it was the doOwnsValues 😄

Edited November 14, 2023 by Tommi Prami

[David Heffernan 2300]

Owns values, means "collection is going to call free on every vamue when it is no longer held in the list". Which implies it needs to be an instance of a class. A record is not. 

[mvanrijnen 121]

litlle bit offtopic, just curious, 
but what would be the (big) advantage of using Spring4D for collections instead of the "Built In" generics/collections from Delphi?,.

 

[David Heffernan 2300]

48 minutes ago, mvanrijnen said:

but what would be the (big) advantage of using Spring4D for collections instead of the "Built In" generics/collections from Delphi?

waiting for @Stefan Glienke to show up and answer this

[Stefan Glienke 1905]

More features, better performance, fewer bugs (and if there are any not having to wait for the Delphi version that fixes them), less binary code bloat.

[Rollo62 502]

11 minutes ago, David Heffernan said:

waiting for @Stefan Glienke to show up and answer this

Here he is, himself

https://www.youtube.com/watch?v=izI0Vah2CRs&t=3s

accompanied by Nick Hodges

https://www.google.com/search?client=firefox-b-d&q=spring4d+tutorial#fpstate=ive&vld=cid:910b8dff,vid:j9qvJiDz7ME,st:0

 

Edited November 14, 2023 by Rollo62

[Rollo62 502]

1 minute ago, Stefan Glienke said:

More features, better performance, fewer bugs (and if there are any not having to wait for the Delphi version that fixes them), less binary code bloat.

Sorry, I was a millisecond too late

[David Heffernan 2300]

I wrote my own set of collections years ago to escape from the bugs in the RTL collections, but I suspect there aren't so many these days