Difference between revisions of "PrF UG classes add superclass"
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<b>Note:</b> If you cannot see the <b>Superclasses</b> pane, | <b>Note:</b> If you cannot see the <b>Superclasses</b> pane, | ||
your window may be too small. | your window may be too small. | ||
| − | You can see the pane by enlarging your window or by dragging the slider bar at the bottom of the | + | You can see the pane by enlarging your window |
| − | [[PrF_UG_classes_class_browser|Class Browser]]. | + | or by dragging the slider bar at the bottom |
| − | See | + | of the [[PrF_UG_classes_class_browser|Class Browser]]. |
| − | [[PrF_UG_windows_small_window|Working With a Small Window]] | + | See [[PrF_UG_windows_small_window|Working With a Small Window]] |
for more information. | for more information. | ||
| Line 30: | Line 30: | ||
<li><p> | <li><p> | ||
Click the <b>Add Superclass</b> | Click the <b>Add Superclass</b> | ||
| − | [[Image:PrF_UG_classes_class.add.gif|classes_class.add]] | + | [[Image:PrF_UG_classes_class.add.gif|classes_class.add]] button |
| − | + | in the [[PrF_UG_classes_superclasses_pane|Superclasses pane]] | |
| − | |||
(located at the bottom left of the Classes Tab, | (located at the bottom left of the Classes Tab, | ||
| − | below the | + | below the [[PrF_UG_classes_class_browser|Class Browser]]). |
| − | |||
A <b>Select Classes</b> window will appear. | A <b>Select Classes</b> window will appear. | ||
| Line 54: | Line 52: | ||
<b>Note:</b> If nothing happens when the class is dropped over a new superclass, | <b>Note:</b> If nothing happens when the class is dropped over a new superclass, | ||
the target class is not allowed to be a superclass of the dragged class. | the target class is not allowed to be a superclass of the dragged class. | ||
| − | For example, | + | For example, descendants of the dragged class are excluded. |
| − | descendants of the dragged class are excluded. | ||
=== Adding a Superclass Using Drag-and-Drop === | === Adding a Superclass Using Drag-and-Drop === | ||
| − | To add a superclass, | + | To add a superclass, using drag-and-drop |
| − | using drag-and-drop in the | + | in the [[PrF_UG_classes_class_browser|Class Browser]]: |
| − | [[PrF_UG_classes_class_browser|Class Browser]]: | ||
<ol class='a'> | <ol class='a'> | ||
| Line 70: | Line 66: | ||
<li><p> | <li><p> | ||
| − | Hold down the mouse button and drag the subclass over the additional superclass. | + | Hold down the mouse button |
| + | and drag the subclass over the additional superclass. | ||
</p> | </p> | ||
<li><p> | <li><p> | ||
| − | Hold down the <b>Ctrl</b> (<b>Cmd</b>) key and release the mouse button to drop the subclass. | + | Hold down the <b>Ctrl</b> (<b>Cmd</b>) key |
| + | and release the mouse button to drop the subclass. | ||
The system will add the new superclass to the subclass. | The system will add the new superclass to the subclass. | ||
</p> | </p> | ||
</ol> | </ol> | ||
| − | <b>Note:</b> If you do not hold down the <b>Ctrl</b> | + | <b>Note:</b> |
| − | (<b>Cmd</b>) | + | If you do not hold down the <b>Ctrl</b> (<b>Cmd</b>) key |
| − | + | when releasing the mouse, | |
the operation is interpreted as | the operation is interpreted as | ||
[[PrF_UG_classes_replace_superclass|Moving a Class]]. | [[PrF_UG_classes_replace_superclass|Moving a Class]]. | ||
| Line 90: | Line 88: | ||
which then inherits the slots and facets of all of its superclasses. | which then inherits the slots and facets of all of its superclasses. | ||
For example, | For example, | ||
| − | the <b>Columnist</b> class in the <b>Newspaper</b> example has two occurrences in the Class Browser: | + | the <b>Columnist</b> class in the <b>Newspaper</b> example |
| + | has two occurrences in the Class Browser: | ||
one with the superclass <b>Author</b>, | one with the superclass <b>Author</b>, | ||
and one with the superclass <b>Person</b>; | and one with the superclass <b>Person</b>; | ||
Revision as of 10:35, October 15, 2008
Adding a Superclass
Classes in Protege can have more than one superclass. Classes inherit the properties of every one of their superclasses, so by adding a superclass to a class, you are adding all of its slots as well.
Note: If you cannot see the Superclasses pane, your window may be too small. You can see the pane by enlarging your window or by dragging the slider bar at the bottom of the Class Browser. See Working With a Small Window for more information.
Adding a Superclass in the Superclasses Pane
To add a superclass using the Superclasses pane:
Select the subclass in the Class Browser.
Click the Add Superclass
button
in the Superclasses pane
(located at the bottom left of the Classes Tab,
below the Class Browser).
A Select Classes window will appear.
Choose the additional superclass(es) you want from the Select Classes window. To highlight multiple classes, hold down the Ctrl (Cmd) key while clicking each class. To highlight a range of classes, click the first class, then hold down the Shift key and click the last class in the range.
Note: If nothing happens when the class is dropped over a new superclass, the target class is not allowed to be a superclass of the dragged class. For example, descendants of the dragged class are excluded.
Adding a Superclass Using Drag-and-Drop
To add a superclass, using drag-and-drop in the Class Browser:
Select the subclass in the Class Browser.
Hold down the mouse button and drag the subclass over the additional superclass.
Hold down the Ctrl (Cmd) key and release the mouse button to drop the subclass. The system will add the new superclass to the subclass.
Note: If you do not hold down the Ctrl (Cmd) key when releasing the mouse, the operation is interpreted as Moving a Class.
Multiple Superclasses and Inheritance
Adding a superclass results in more than one superclass for a class, which then inherits the slots and facets of all of its superclasses. For example, the Columnist class in the Newspaper example has two occurrences in the Class Browser: one with the superclass Author, and one with the superclass Person; it inherits slots from both superclasses.
