Dynamic datapointers

[gordyt]

Greetings All!

I am using datapointers to process the result of executing the doRequest() method of a dynamically-created LzDataset.

I have found that if I try and use a dynamically-created datapointer as follows then it does not work:


var xp = "myDataset:/*";
this.updateDatapointer = new LzDatapointer(
this, {xpath: xp, ondata: this.processResult}
);


the processResult method in the enclosing class instance never gets called.

However, if I declare a class like this:


<class name="MyDatapointer" extends="datapointer">
<attribute name="my_instance" />
<method event="ondata" args="d">
<![CDATA[
// do whatever you want here. can invoke some method defined
// in this.my_instance
]]>
</method>
</class>


And then do this down in the code:


var xp = "myDataset:/*";
this.updateDatapointer = new MyDatapointer(
this, {xpath: xp, my_instance: this}
);


Then in that case the ondata method in MyDatapointer does get called just fine. Am I doing something obviously wrong with my first attempt?

Thank you,

--gordon