Operations (OOM)

An operation is a named specification of a service that can be requested from any object of a class to affect behavior. It is a specification of a query that an object may be called to execute.

An operation can be created for a class or interface in the following diagrams:

A class may have any number of operations or no operations at all.

In the following example, the class Car, has 3 operations: start engine, brake, and accelerate.

Operations have a name and a list of parameters. Several operations can have the same name within the same class if their parameters are different.

For more information on EJB operations, see Defining Operations for EJBs.

• Creating an Operation
  You can create an operation as follows:
• Copying an Operation to Another Class
  You can copy an operation from one class and add it to another. If the class already contains an operation with the same name or code as the copied operation, the copied operation is renamed. For example the operation testPort is renamed testPort2 when it is copied to a class which already contains an operation testPort.
• Operation Properties
  You can modify an object's properties from its property sheet. To open an operation property sheet, double-click its Browser entry in the Operations folder.

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Created October 7, 2009. Send feedback on this help topic to Sybase Technical Publications: pubs@sybase.com