`Random` is null in the context when created by `Global.generatorContext()` about instancio HOT 5 CLOSED

Ok thanks.
The suggested solutions works with version 4.1.0
(i got some exception when using 3.6.0 in our main project, so I just bumped up the version)

from instancio.

Thanks for raising this issue and creating a sample project. It helps a lot!

Unfortunately, this usage is not supported because CollectionGenerator and Global are internal classes. Anything under internal package or annotated with @InternalApi is not intended to be used by users.

Based on the sample project, I assume the goal is to generate a collection of size 1 (by default) for MyClass.values. If that's the case, you could use the provided Generators instance in your SPI implementation:

public class MyClassGenerator implements InstancioServiceProvider {

    @Override
    public InstancioServiceProvider.GeneratorProvider getGeneratorProvider() {
        return (node, generators) -> {
            if (matchesNode(node)) {
                // 'generators' provides access to all built-in generators
                return generators.collection().size(1);
            }
            return null;
        };
    }

    private boolean matchesNode(Node node) {
        Field field = node.getField();
        return field != null
                && MyClass.class.isAssignableFrom(field.getDeclaringClass())
                && node.getTargetClass() == List.class;
    }
}

Does this work for you use case?

from instancio.

Hey,

thanks for the answer, i did not see the annotation.
Just to clarify: All custom Generators should just implement the Generator interface, correct?
(My code provided is not a real Generator since it just delegates, so it shouldnt implement the interface)

from instancio.

All custom Generators should just implement the Generator interface, correct?

That's right, all generators should implement the Generator interface. The Global class contains an internal instance of Random and Settings. Since you already get those objects using public APIs, the Global class shouldn't be needed for a custom generator. To delegate to the collection generator, you can use the collection() method as above.

from instancio.

i got some exception when using 3.6.0 in our main project, so I just bumped up the version

Thanks for the update. This makes sense now. There was a fix for this bug not too long ago:

• #882

Let me know if you run into other issues.

from instancio.