[Bug 616] New: Problem with accessing mountpoint methods from another application

http://helma.org/bugs/show_bug.cgi?id=616

           Summary: Problem with accessing mountpoint methods from another
                    application
           Product: Helma
           Version: CVS trunk
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: HopObject Functionality
        AssignedTo: helma-dev@...
        ReportedBy: interface@...


I have an application "foo" with a prototype Bar which is a mountpoint of Root:

Root.properties
===============
bar = mountpoint(Bar)

A method "test" is available in Bar:

Bar.js
======
Bar.prototype.test = function() {
   return true;
}

Thus, I can execute code like the following:

res.write(root.bar.test());
// true

When I try to access the test() method from within another application I get an
exception:

var server = Packages.helma.main.Server.getServer();
var app = server.getApplication("foo");
var rewt = app.getDataRoot();
var mountpoint = rewt.bar; // This is mountpoint(Bar) of Root in foo
mountpoint.test() // Method is defined in Bar but the call throws an exception

However, the mountpoint itself is available:

res.write(mountpoint);
// [object HopObject]

And it has the basic HopObject properties:

res.write(mountpoint._id);
// bar

res.write(mountpoint.get);
// function get() { [native code, arity=1] }

Am I doing something silly here or could it be that Helma is missing to add the
correct methods and properties to the (somehow remotely) retrieved prototype?


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hannes@... changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED




------- Comment #1 from hannes@...  2008-04-14 19:17 -------
Does the exception have a message? What does it say?


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------- Comment #2 from interface@...  2008-04-14 20:35 -------
Sorry, I thought that would be obvious, my mistake. Thus, here it is together
with the whole Java stack trace:

TypeError: Cannot find function test in object HopObject bar

org.mozilla.javascript.EcmaError: TypeError: Cannot find function test in
object HopObject bar.
(/Users/tobi/Projects/helma/./apps/antville/code/Root/Root.js#75)
        at
org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3539)
        at
org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3517)
        at
org.mozilla.javascript.ScriptRuntime.typeError(ScriptRuntime.java:3545)
        at
org.mozilla.javascript.ScriptRuntime.typeError2(ScriptRuntime.java:3564)
        at
org.mozilla.javascript.ScriptRuntime.notFunctionError(ScriptRuntime.java:3628)
        at
org.mozilla.javascript.ScriptRuntime.getPropFunctionAndThis(ScriptRuntime.java:2180)
        at
org.mozilla.javascript.optimizer.OptRuntime.callProp0(OptRuntime.java:117)
        at
org.mozilla.javascript.gen.c1041._c3(/Users/tobi/Projects/helma/./apps/antville/code/Root/Root.js:75)
        at
org.mozilla.javascript.gen.c1041.call(/Users/tobi/Projects/helma/./apps/antville/code/Root/Root.js)
        at
org.mozilla.javascript.ScriptRuntime.applyOrCall(ScriptRuntime.java:2341)
        at
org.mozilla.javascript.BaseFunction.execIdCall(BaseFunction.java:272)
        at
org.mozilla.javascript.IdFunctionObject.call(IdFunctionObject.java:127)
        at
org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:76)
        at
org.mozilla.javascript.gen.c873._c5(/Users/tobi/Projects/helma/modules/helma/Aspects.js:79)
        at
org.mozilla.javascript.gen.c873.call(/Users/tobi/Projects/helma/modules/helma/Aspects.js)
        at
org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:401)
        at
org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2985)
        at
org.mozilla.javascript.gen.c873.call(/Users/tobi/Projects/helma/modules/helma/Aspects.js)
        at org.mozilla.javascript.Context$1.run(Context.java:488)
        at org.mozilla.javascript.Context.call(Context.java:499)
        at org.mozilla.javascript.Context.call(Context.java:486)
        at helma.scripting.rhino.RhinoEngine.invoke(RhinoEngine.java:303)
        at helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:402)
        at java.lang.Thread.run(Thread.java:613)


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