How to access "types" dynamically with java?-CodePudding

I don't know what types.DocumentType is, but I'm doing an integration of an sdk and I created a cordova plugin. the import from the sdk is like this:

import exemple.types.DocumentType;

example.open(DocumentType.RG_FRENTE, myListener);

Can I somehow pass RG_FRENTE dynamically as it is done in javascript?

Something like:

example.open(DocumentType[my_parameter], myListener);

CodePudding user response：

What @shmosel said is to define somewhere in your code a Map like:

Map<String,Integer> documentTypes = new HashMap<>() {{
                put("RG_FRENTE",DocumentType.RG_FRENTE);
                put("RG_ETNERF",DocumentType.RG_ETNERF);
        }};

(I assume here DocumentType.RG_FRENTE is an int (can be Object), as you don't tell us the type)

Later, you can access the values dynamically like

String my_parameter = "RG_FRENTE";
// ...
example.open(documentTypes.get(my_parameter), myListener);

If you like, you can create documentTypes by reflection, but always is better to avoid reflection in code.

CodePudding user response：

This solution is only if DocumentType is enum class like below.

enum DocumentType {
    RG_FRENTE,
    RG_ETNERF;
}

You can directly get by the valueOf method like below.

DocumentType docType = DocumentType.valueOf("RG_ETNERF");

Or like this, if you have it in variable.

String type = "RG_ETNERF";
DocumentType docType = DocumentType.valueOf(type);