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ABC: Passing Relation Manager to a class
1999-07-21 -- Phillip Carroll
 
Newsgroups: topspeed.topic.oop > I have a file called PRODUCTS.DAT, my app is PSYSTEM.APP. So when i compile, > this is generated in PSYSTEM.CLW: > > Access:PRODUCTS &FileManager > Access:PRODUCTS &RelationManager > > I am creating a class that will do some I/O on PRODUCTS so i want to still > make use of the instance of Access:PRODUCTS created without having to > create a different on in the .INI,.CLW of my class so that i can use > something like Access:PRODUCTS.Insert(). > > Of course, i get compiler error when the compile hits the .clw containing > class since it doesn't know what Access:PRODUCTS means. The bottemline is > that i am trying to have just one declaration of Access:PRODUCTS. Am i > missing something? Pass an object reference to your class. However, I suggest passing a Relation Manager object reference instead, so that you will have the ability to use Relation Manager methods as well as File Manager methods. The basic steps are outlined below. Add a property to your class properties: MyFile &RelationManager Have your Init method include another parameter: MyClass.Init PROCEDURE(RelationManager MyFile, ) CODE Self.MyFile &= MyFile After instantiating an object in your class, Initialize it with xxx.Init(Relate:Products, other parameters) Your other methods will be able to call nonprivate nonprotected methods using: Self.Myfile.Method(parameters) ! Relation Manager methods ! The Relation Manager Me property is the File Manager Self.MyFile.Me.Method(parameters) ! File Manager methods HTH Phil Carroll

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