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2 Replies Latest reply on Oct 9, 2009 2:24 PM by joseph.dimi_mcclane.yahoo.de

Seam Remote method returns object instead of primitive

joseph.dimi_mcclane.yahoo.de Oct 8, 2009 3:58 PM

Hello,

I am having troubles setting a var in JavaScript with a returned value from a @WebRemote annotated method.

method:

private int value = 50;

public int getValue()
    {
        return value;
    }

java script:

var X = Seam.Component.getInstance("draw").getValue();

this gets me an Exception in Firefox 3.5:

uncaught exception: [Exception... "An invalid or illegal string was specified"

I checked the value with JavaScript "typeof" and its an "object". 
JavaScript ".valueOf()" returns [object Object].

but Seam Debug Window says:

<envelope><header><context><conversationId>37</conversationId></context></header><body><result id="0"><value><number>50</number></value><refs></refs></result></body></envelope>

so value is actually a number. Any thoughts? Firefox issue?

1. Re: Seam Remote method returns object instead of primitive

shane.bryzak Oct 9, 2009 3:55 AM (in response to joseph.dimi_mcclane.yahoo.de)

Of course this won't work, it's an asynchronous call. You need to pass a reference to a callback method in your getValue() invocation and then you can do something with the return value there.
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2. Re: Seam Remote method returns object instead of primitive

joseph.dimi_mcclane.yahoo.de Oct 9, 2009 2:24 PM (in response to joseph.dimi_mcclane.yahoo.de)

Thanks! I was in a hurry to make a working demo, so i misunderstood the documentation a bit, which says that a callback is entirely optional. But as you said, this is an asynchronous call and now its strikes me!
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