Show TOC

Abstract Data Types (PDM)Locate this document in the navigation structure

An abstract data type (ADT) is a user-defined data type which can encapsulate a data set and functions that can be performed on the data. Abstract data types are not supported by all DBMSs.

For example you could create an abstract data type for the Gregorian calendar to read and write roman numerals and convert dates between the Julian and Gregorian calendars.

If your model contains abstract data types of type JAVA, you can link them to Java classes in an OOM to model and review the Java class properties (see Linking an Abstract Data Type to a Java Class).


In this section:
    Creating an Abstract Data Type
    You can create an abstract data type from the Browser or Model menu.
    Abstract Data Type Properties
    To view or edit an abstract data type's properties, double-click its Browser or list entry. The property sheet tabs and fields listed here are those available by default, before any customization of the interface by you or an administrator.
    Linking an Abstract Data Type to a Java Class
    You can link an abstract data type in a PDM to a Java class in an OOM open in the Workspace to access the properties of the Java class within the PDM.