org.graalvm.polyglot.proxy

Interface Proxy

All Known Subinterfaces:

ProxyArray, ProxyExecutable, ProxyInstantiable, ProxyNativeObject, ProxyObject

public interface Proxy

Proxy interfaces allow to mimic guest language objects, arrays, executables, primitives and native objects in Graal languages. Every Graal language will treat instances of proxies like an object of that particular language. Multiple proxy interfaces can be implemented at the same time. For example, it is useful to provide proxy values that are objects with members and arrays at the same time.

Exceptions thrown by proxies are wrapped with a PolyglotException when the proxy is invoked in a guest language. It is possible to unwrap the PolyglotException using PolyglotException.asHostException().

Since:

19.0

See Also:

to mimic arrays, to mimic objects with members, to mimic objects that can be executed, to mimic native objects