About Metamodel
Toad Data Modeler implements the concept of metamodels. Metamodels are accessible only in Expert Mode (via Package Explorer).
Metamodel is a graphical representation of objects, classes, methods and relationships between them in a specific Package.
Using metamodels, you can create your own classes, methods and properties and define relationships between those items and items that are created in the application by default.
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Important: It is recommended to only use lower and uppercase letters for naming your objects in metamodels (no numbers and special characters). |
Example: The metamodel of Oracle package
Open Metamodels
- Open
(or select Expert Mode Menu | Customization | Package Explorer).
- Select a package.
- Right-click the package and select Open Metamodel.
Classes
Toad Data Modeler implements the concept of metamodels. Metamodels are accessible only in Expert Mode (via Package Explorer).
Metamodel is a graphical representation of objects, classes, methods and relationships between them in a specific Package.
Using metamodels, you can create your own classes, methods and properties and define relationships between those items and items that are created in the application by default.
|
|
Important: It is recommended to only use lower and uppercase letters for naming your objects in metamodels (no numbers and special characters). |
Example: The metamodel of Oracle package
Open Metamodels
- Open
- Select a package.
- Right-click the package and select Open Metamodel.
Add Existing Classes
- Right-click the work area and select Add Class.
- In the Class Selection dialog, select a class and define settings on tab Settings.
Result: The selected class will be added to your metamodel and you will be able to modify it.
Create Classes
Click Class
To add multiple classes on the Workspace
- Press SHIFT and click the Class icon. A blue frame displays in the icon.
- Click the work area as many times as many classes you want to add.
- Right-click the work area (or click the Class icon again) to turn this function off.
To see all classes of your model
Select Model | Model Items |Classes. In the Classes dialog, you can add, edit classes, edit their names (F2) and delete them.
