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Are there any OverHead issues with passing
ArgumentCollection/Structs to CFC Methods
for every call?
e.g
value =
variables[objName].dynMethod(request,form,url);
The above values(structs) passed are really Objects Passed by
Reference right?
Thanks
Joe Eugene
----------------------------------------------------------------------------------------
<cfscript>
object =
createObject("component", "yourComp");
objName =
"object";
methodName =
"yourMethod";
variables[objName].dynMethod =
variables[objName][methodName];
value=
variables[objName].dynMethod();
writeOutput(value);
</cfscript>
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----- Original Message -----
Sent: Wednesday, June 18, 2003 1:21
AM
Subject: RE: [CFCDev] Dynamic CFC
Calls
If you
want to pass the argument names dynamically, I suggest you use the
argumentCollection
Thanks Nathan, I knew.. there was a way around the
"evaluate"....
It was really
bothering me.. to advocate NOT to use "evaluate"
and
having forced
to use it.
One more
question.. havent tested it..
Can i pass the
parameters in
value=
variables[objName].dynMethod(request.param1,request.param2);
Thanks
Joe Eugene
A
similar method, if you need the dynamically called method to have access
to the CFC internals might be:
<cfscript>
object = createObject("component",
"yourComp");
objName =
"object";
methodName =
"yourMethod";
variables[objName].dynMethod =
variables[objName][methodName];
value=
variables[objName].dynMethod();
writeOutput(value);
</cfscript>
In the
original, you are "stripping" the method off the CFC instance and
making it local. In my method you are "tacking" the dynamic method
back onto the CFC instance. It only matters if the method you call
also calls private/public methods of the CFC and/or uses instance data of
the CFC.
This works (tested):
<cfscript>
object =
createObject("component", "yourComp");
objName =
"object";
methodName =
"yourMethod";
dynMethod =
variables[objName][methodName];
value=
dynMethod();
writeOutput(value);
</cfscript>
Is that what you're after?
Adam Cameron
Application
Developer
Straker Interactive
[EMAIL PROTECTED]
Fax + 64 9 3605870
DDI +64 4 4965664
Thanks Samuel... but that does NOT
work.
The only way i can get it to work is using an
evaluate.... and i really dont want to use "evaluate"
variables.execMethod="request."&variables.varClass&"."&variables.varMethod;
'#variables.varName#'=
evaluate(variables.execMethod);
Your Code...
variables[varName] =
request[variables.varClass][variables.varMethod](); // Complains about
"()"
The compiler complains about the "()" at the
end... can u get it to work?
Thanks
Joe Eugene
----- Original Message -----
Sent: Tuesday, June 17, 2003
3:45 PM
Subject: RE: [CFCDev] Dynamic
CFC Calls
two
ways,
1.
request.dataObj =
createObject("Component","Website/MyData");
varObj="dataObj";
varMethod="getStateData"; // removed the
parens
varName="someData";
variables[varName] =
request[varObj][varMethod]();
2.
<cfinvoke component="#request[varobj]#"
method="#varMethod#"
returnVariable="#varName#">
Untested
but both should work.
hth,
Sam
Anybody know how to dynamically call methods in
CFC's
<cfscript>
request.dataObj =
createObject("Component","Website/MyData");
varObj="dataObj";
varMethod="getStateData()";
varName="someData";
// Now, i want to be able to call the CFC
Dynamically, something like
'#varName#'=request["#varObj#"]["#varMethod#"];
//.#varMethod# doesnt work either.
</cfscript>
I am getting the below from the above
code.
"Element getleftNavLinks is undefined in a Java
object of type class coldfusion.runtime.TemplateProxy referenced
as"
What am i missing?..
Thanks
Joe
Eugene
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