Can I instantiate a superclass and have a particular subclass be instantiated based on the parameters supplied

Question

I am using Google\'s GSON package http://code.google.com/p/google-gson/

I am converting JSON to Java.

I have this fragment of code where I do the conversion.

Answer 1

Gson does not currently have a simple mechanism for polymorphic deserialization, other than implementing custom deserialization processing. The next release looks like it will provide a built-in solution.

Previous StackOverflow.com Questions And Answers (Some With Examples) On This Topic:

• Deserialising a generic with unknown compile time type where a field indicates the type
• Parse JSON with no specific structure for a field with GSON
• json object serialization/deserialization using google gson
• Polymorphism with gson

Answer 2

Sounds like you want to create a custom deserializer if you need to check the values, or an instance creator if you only need to create an instance based on type.