Invocable uses script engine 'default' ScriptContext. For the default
ScriptContext, there are getter/setter methods in
javax.script.ScriptEngine.
http://docs.oracle.com/javase/7/docs/api/javax/script/ScriptEngine.html#setContext%28javax.script.ScriptContext%29
If you flip a different ScriptContext to be your default context,
Invocable methods will search/invoke functions from that (new default)
script context.
Hope this helps,
-Sundar
On Friday 06 December 2013 01:47 PM, Tim Fox wrote:
I should add - I can work around this pretty easily by simply
executing a JavaScript fragment in the scope I want, e.g.
engine.eval("if (typeof vertxStop === 'function') vertxStop();",
theCorrectScriptContext);
So it's not a huge deal, but would be nice to be able to call a top
level function directly from Java in a specific scope.
On 05/12/13 23:01, Tim Fox wrote:
I have a ScriptEngine instance which I use many times to execute
scripts in different scopes:
I.e. repeat the following several times with different scripts
ScriptContext ctx = new SimpleScriptContext();
Bindings bindings = engine.createBindings();
ctx.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
engine.eval(someScript, ctx);
Some time later I want to invoke a top level function 'vertxStop' in
one of those scripts.
Each script has their own version of function vertxStop as they all
have their own scope.
According to the docs I can invoke a top level function by casting
the engine to Invocable:
Invocable inv = (Invocable)engine;
inv.invokeFunction("vertxStop");
But this doesn't let me choose which of the many vertxStop functions
I want to execute.
I looked for a version of invokeFunction which takes a ScriptContext
too, but couldn't find one.
Does anyone know how I can invoke a top level function from a
specific scope using the javax.script API?
Cheers
