From JS to Java objects?

[Rick Bullotta]

Just checked.  No info yet on JSAdapter or JSObject in the Java Scripting Programmer's Guide. 

-----Original Message-----
From: A. Sundararajan [mailto:sundararajan.athijegannathan at oracle.com] 
Sent: Tuesday, October 08, 2013 9:06 AM
To: Rick Bullotta; nashorn-dev at openjdk.java.net
Subject: Re: From JS to Java objects?

There are tests under $nashorn/test/ directory has tests that demonstrate the use of JSAdapter and JSObject (from outside).

I am not sure if "Java Scripting Programmer's Guide" has JSAdapter or not. Pluggable JSObject is a more recent thing.

-Sundar

On Tuesday 08 October 2013 02:51 PM, Rick Bullotta wrote:
> Awesome.  Any examples out there in the ether?
>
> -----Original Message-----
> From: nashorn-dev-bounces at openjdk.java.net 
> [mailto:nashorn-dev-bounces at openjdk.java.net] On Behalf Of A. 
> Sundararajan
> Sent: Tuesday, October 08, 2013 8:50 AM
> To: nashorn-dev at openjdk.java.net
> Subject: Re: From JS to Java objects?
>
> There is JSAdapter support in nashorn (like jdk6/7 Rhino supported).
> JSAdapter is used within script to intercept get/put/call etc. Also it is possible to supply your own impl of jdk.nashorn.api.scripting.JSObject -- which can be used with natural script syntax from script. You can intercept calls, property access in your code.
>
> Hope this helps
> -Sundar
>
> On Tuesday 08 October 2013 02:32 PM, Rick Bullotta wrote:
>> On a related topic, I'm particularly interested in better understanding the *Adapter model in Nashorn and how it compares to Rhino, particularly in terms of custom adapters.
>>
>> In Rhino, we use custom adapters to intercept get/set/delete/put and other methods to allow dynamic access to a variety of data structures and objects (we can virtualize properties and functions this way, versus automatic reflection and type munging), and it isn't at all clear how to do this with Nashorn.
>>
>> -----Original Message-----
>> From: nashorn-dev-bounces at openjdk.java.net
>> [mailto:nashorn-dev-bounces at openjdk.java.net] On Behalf Of Tal Liron
>> Sent: Tuesday, October 08, 2013 8:26 AM
>> To: nashorn-dev at openjdk.java.net
>> Subject: Re: From JS to Java objects?
>>
>> Sorry about that, was trying to be succinct.
>>
>> In detail: I'm creating Nashorn scripts programmatically from Java (using Context.compileScript and ScriptRuntime.apply), and receiving native results that need some massaging in order to be usable in Java.
>> (Specifically I'm working on creating a Nashorn adapter for
>> Scripturian.)
>>
>> However, I mostly found the answers myself:
>>
>> 1. It's possible to call NativeJava.to (equivalent to Java.to in JavaScript) 2. More efficient is to test specifically for NativeArray results and wrap them in a ListAdapter, which makes them conform to the List interface. This is what NativeJava.to does internally.
>>
>> On 10/08/2013 08:12 PM, Jim Laskey (Oracle) wrote:
>>> Please be more specific with an example.  I assume you want to 
>>> extend a Java class or some such requirement,
>>>