Gson: How do I parse polymorphic values that can be either lists or strings?

Question

I need to parse a JSON file that contains long list of customers. In the JSON file each customer may have one id as a string:

{
  \"cust_id\": \"87655\",
  ...
}         


        

Answer 1

Try method overriding:

public class Customer {

    @SerializedName("cust_id")
    @Expose
    private String custId;

    public void setCustId(String custId) {
        this.custId = {custId};
    }

    public String[] getCustId() {
        return custId;
    }

    @override
    public void setCustId(String[] custId) {
        this.custId = custId;
    }
}

Now In the code all values of CUSTID will be arrays instead of strings