Programming Guide - Actian

Overview of the OpenROAD System ClassesClassThis abstract class contains information about all the system classes:ClassContains information about all OpenROAD system classes. It provides amethod (Create) that you use to create a new object of a specified class.The Class system class has a single subclass, UserClassObject, which is aruntime object used to manage user class information.User Class Source DefinitionThe following system classes contain definitions for a user class:AttributeObjectStores the information for defining a user class attributeClassSourceStores the definitions for a user class, including a list of all attributes andmethods for a given class, as well as the name of its superclass.It also provides a CreateClass method for creating a UserClassObjectobject from a fully defined ClassSource object.MethodObjectStores the information for defining a user class methodThese system classes are most useful when you want to create a user classdynamically.User Class Runtime DefinitionThe following system classes represent runtime versions of a user class:UserClassObjectSpecifies an instance of a ClassSource that represents a specific user class.The UserClassObject object for a user class is instantiated at applicationstart-up time from the definition stored in the ClassSource object for theuser class.As a subclass of the Class system class, it inherits the Create method thatlets you create objects of this user class.Working with Classes 143