![Sybase Powerdesigner 7.5 Скачать руководство пользователя страница 124](http://html1.mh-extra.com/html/sybase/powerdesigner-7-5/powerdesigner-7-5_user-manual_1416512124.webp)
Defining realizations
114
Defining realizations
A realization is a relationship between a class and an interface. It shows that
the class realizes the operations offered by the interface. In this kind of
relationship, the interface is called the specification element and the class is
called the implementation element. The class implements the specification of
the interface.
You can also create a realization between a shortcut of an interface and a
class, or between a shortcut of a class and a interface. If the link is oriented,
only the parent object can be the shortcut.
Although you can create more than one realization link between a class and
an interface, you should create only one, because the interface can only
realize one action for the class. When you generate from an OOM, if more
than one realization exists between a class and an interface, a warning
message is generated.
The arrowhead at one end of the realization always points towards the
interface.
Realization properties
A realization has the following properties:
Property
Description
Maximum
length
Name
Name of the realization
254
Code
Reference name for the realization
254
Comment
Descriptive comment for the realization
—
Interface
Name of the interface that carries out the realization
254
Class
Name of the class that for which the realization is
carried out
254
Stereotype
Pre-defined or user defined instance of the realization
—
Содержание Powerdesigner 7.5
Страница 1: ...OBJECT ORIENTED MODEL User s Guide POWERDESIGNER 7 5...
Страница 8: ...viii...
Страница 22: ...Defining OOM properties 12...
Страница 97: ...Chapter 2 Building an Object Oriented Model 87 4 Modify the operation display preferences 5 Click OK...
Страница 144: ...Defining check parameters 134...
Страница 208: ...Generating for XML 198 6 Click OK An XML file is generated with the file extension xml...
Страница 210: ...Customizing scripts 200...
Страница 224: ...Generating a CDM from an OOM 214...
Страница 238: ...Generating a PDM from an OOM 228...
Страница 260: ...Object language editor categories 250...
Страница 268: ...Applying business rules to objects 258...
Страница 288: ...278...