JavaAdapter - extend class?

[Jim Laskey (Oracle)]

As Attila said.  You can use concrete classes as well.

	var myObject = new java.util.Timer("My Timer") {
	};

Works fine.  And I'll correct the stale comment.

Cheers,

-- Jim



On 2012-12-21, at 5:18 PM, Bruno Borges <bruno.borges at oracle.com> wrote:

> So, like I said: Nashorn does not support extending a class.
> 
> This is bad because sometimes we have abstract classes that need to be implemented on the Javascript side.
> 
> Is there any plan to provide this feature?
> 
> On Fri 21 Dec 2012 07:16:05 PM BRST, Jim Laskey (Oracle) wrote:
>> Absolutely.  Here is the comment from the source.
>> 
>>  This class implements Rhino-like JavaAdapter to help implement a Java
>>  interface in JavaScript. We support this using Invocable.getInterface.
>>  Using this JavaAdapter, script author could write:
>> 
>>     var r = new java.lang.Runnable() {
>>                 run: function() { script... }
>>             };
>> 
>>     r.run();
>>     new java.lang.Thread(r).start();
>> 
>>  Note that Rhino's JavaAdapter support allows extending a Java class and/or
>>  implementing one or more interfaces. This JavaAdapter implementation does
>>  not support these.
>> 
>> If you looked at the twitter example on the blog you'll see another application.
>> 
>> 	https://blogs.oracle.com/nashorn/entry/nashorn_in_the_twitterverse_continued
>> 
>> Cheers,
>> 
>> -- Jim
>> 
>> 
>> 
>> 
>> On 2012-12-21, at 4:56 PM, Bruno Borges <bruno.borges at oracle.com> wrote:
>> 
>>> On Mozilla Rhino, the JavaAdapter offers the capability of extending from concrete classes, and also implementing more than one interface.
>>> 
>>> Will Nashorn offer this same capability?
>>> 
>>> I ask this because the modified version of Rhino that comes with JRE does *not* offer this.
>>> 
>>> Thanks
>>> 
>>> --
>>> Bruno Borges
>>> Principal Product Manager | JavaEE WebLogic GlassFish
>>> Oracle LAD PM Team        | Cloud Application Foundation
>>> +55 11 5187 6514 (Work)   | +55 11 99564 9058 (Mobi)
>>> 
>> 
> 
> --
> --
> Bruno Borges
> Principal Product Manager | JavaEE WebLogic GlassFish
> Oracle LAD PM Team        | Cloud Application Foundation
> +55 11 5187 6514 (Work)   | +55 11 99564 9058 (Mobi)