Paul, Thank you very much. I will certainly try your suggestion.
Robert J. Polickoski Senior Programmer, ISRD Inc. (540) 842-6339 [EMAIL PROTECTED] AIM - RobertJFP ---------- Original Message ---------------------------------- From: "Paul Kenney" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] Date: Tue, 17 Dec 2002 02:54:30 -0800 >Robert, > >You can create a struct in the Server (or Application) scope that holds a >reference to each instantiated object. Lets call this this >"Server.stObjects". > >Each object needs a unique ID, so a UUID will be perfect. Add a property >called "ObjectID" in each component that you want to put inside this global >reference struct. When an object is instantiated, simply set the ObjectID >property to a newly generated UUID. Next, create a key in the global struct >with its name set to the object's ObjectID and its value set to a reference >to the new object. You can put all this in the constructor code. Here is >the code: > >-------------------------------------------------------- >in Application.cfm: > ><cfparam name="Server.stObjects" type="struct" default="#StructNew ()#"/> > > >-------------------------------------------------------- >in component file: > ><cfcomponent> > <cfproperty name="ObjectID" type="UUID"/> > ... > <cfif NOT Len(this.ObjectID)> > <cfset this.ObjectID = CreateUUID()> > <cfset Server.stObjects[this.ObjectID] = this> > </cfif> ></cfcomponent> >-------------------------------------------------------- > >To get the object back, simply use its ObjectID to access the key in the >global struct. > >You might want to put this code into a base class so that you don't have to >copy it all over the place. In that class you could add the private methods >"addRef", "removeRef" and "getRef", placing the constructor code above in >the "addRef" method. >"removeRef" would simply remove the object's key from the global struct. >"getRef" would return a reference to the object with the specified ObjectID >value. > >-------------------------------------------------------- > >I hope this sheds some light on the possible solutions to your problem. > >Paul Kenney >[EMAIL PROTECTED] > > >> -----Original Message----- >> From: Robert Polickoski [mailto:[EMAIL PROTECTED]] >> Sent: Monday, December 16, 2002 1:35 PM >> To: CF-Talk >> Subject: CFC Instance Identification >> >> >> All, >> >> Thank you in advance for you patience with my CFC tribulations. I >> am trying to find a string identifier for an instance of a CFC. >> >> The situation is this: I am outputting a list of instantiated >> objects to which a user has access. In this list, I want to put >> anchors that will call a specific method of an instantiated >> object. I have a function in a non-instantiated CFC that can do >> this as long as I can pass a string identifier for the instance. >> >> <cffunction name="DisplayCompMeth" access="remote" >> output="true" displayname="Display Component Method" hint="Display >> a specific method of a specific componentinstance"> >> <!-- This function displays the specified method >> of the specified component instance --> >> <cfargument name="Comp" type="string" >> required="true" default="#URL.Comp#" displayname="Component" >> hint="The component or instance thereof"> >> <cfargument name="Meth" type="string" >> required="true" default="#URL.Meth#" displayname="Method" >> hint="The method to be invoked"> >> <cfinvoke component="#evaluate("#Comp#")#" >> method="#Meth#" returnvariable="DisplayPage"></cfinvoke> >> <cfoutput> >> #DisplayPage# >> </cfoutput> >> </cffunction> >> >> This works fine when I know the name of the instance such as >> SESSION.User. But I am actually creating the menu by calling >> methods from within the instantiated objects. So I am looking for >> a system level string identifier, like CFID, that is accessible >> from within the instantiated object. Does anyone know if there is >> such a thing and if so, how to get it? >> >> Again, thank you for your patience, assistance and support. >> >> Robert J. Polickoski >> Senior Programmer, ISRD Inc. >> (540) 842-6339 >> [EMAIL PROTECTED] >> AIM - RobertJFP >> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Get the mailserver that powers this list at http://www.coolfusion.com
