如何覆盖 openedge 中的 toString 方法？

Question

我有一个可序列化的 class，我想在序列化为 JSON 时提供我自己的 toString。


    DEFINE PUBLIC PROPERTY address1 AS CHARACTER NO-UNDO 
    GET.
    SET.
    
    METHOD PUBLIC OVERRIDE CHARACTER toString(  ):
        
        DEFINE VARIABLE result AS CHARACTER NO-UNDO.

        RETURN address1 + address2 + city + country.

    END METHOD.

END CLASS. ```

I am also assigning the class to a temptable and using the write-json method of a dataset to output but I get the standard toString representation .."myClass": {
                "prods:objId": 1,
                "myClass": {
                    "address1": "xxxxx"
                }
            } 

can I somehow override the toString being used ?

Answer 1

JsonSerializer 不使用 ToString() ，也不会让您对生成的格式有任何控制。 Serialize method describes what data is written. If you want this ability added into the ABL, you can add an "Idea" at https://openedge.ideas.aha.io/ideas; OE 产品管理定期审查这些想法。

如果你今天想控制所写的内容，你需要自己动手。例如，OE 有 IJsonSerializer interface, which allows types to declare that they can be serialised using the JsonSerializer class.

如何覆盖 openedge 中的 toString 方法？

how can I override the toString method in openedge?

progress-4gl

openedge