如何在Apache Flink中注册java.util.List类型

Question

Is it possible to use Environment#registerType for java.util.List or other collection types? If I do:

StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

env.getConfig().disableGenericTypes();
env.registerType(List.class);

I still get Generic types have been disabled in the ExecutionConfig and type java.util.List is treated as a generic type.

What I acutally would like to do, but what is not possible in Java, because of type erasure is:

StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

env.getConfig().disableGenericTypes();
env.registerType(List<MyClass>.class);

Unfortunately, I found no solution in the documentation or using a search engine.

Answer 1

How about implements List<T> like

class MyClassList implements List<MyClass> {
...
}

then you can registerType Type MyClassList with specifict MyClass