Hello Michael,
thank you for your answer. Unfortunatly that didn't help. The method
still gets executed despite the interfaces precondition and
hasInterface() still returns false.
Michael Helwig schrieb:
> Hey Eric,
>
> have you tried leaving the brackets "[" and "]" away in your interface
> declaration? I'm not sure what they are there for, I have never used
> them and my interface implementations work.
>
> Best,
>
> Michael
> Eric Brachmann schrieb:
>
>> Hello,
>>
>> working on a project with qooxdoo I recognized, that the preconditions I
>> set in an interface were not evaluated correctly. It seems that my
>> classes do not implement their interfaces at all, although the code
>> looks fine and no error is thrown.
>>
>> An example to illustrate the issue:
>>
>> IMyInterface.js:
>> qx.Interface.define("itest.IMyInterface",
>> {
>> members:
>> {
>> testMe: function() { return false; }
>> }
>> });
>>
>> MyClass.js
>> qx.Class.define("itest.MyClass",
>> {
>> extend: qx.core.Object,
>> implement: [itest.IMyInterface],
>>
>> members:
>> {
>> testMe: function() { alert("You should not see this!"); }
>> }
>> });
>>
>> Application.js (excerpt):
>> ...
>> var test = new itest.MyClass();
>>
>> alert("implements interface: "
>> + qx.Class.implementsInterface(test, itest.IMyInterface)
>> + ", has interface: "
>> + qx.Class.hasInterface(test, itest.IMyInterface));
>>
>> test.testMe();
>> ...
>>
>> The output is "implements interface: true, has interface: false" as if
>> the implement statement in the class definition is being ignored.
>> The testMe() method gets executed even though the precondition of the
>> interface evaluates to false.
>>
>> A project of this simple example is avaiable here:
>> http://www.hatter.de/studium/itest.zip
>>
>> It would be very kind if someone could enlighten me.
>>
>> Regards, eB.
>>
>>
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