Difference between revisions of "PrF UG slots value type instance"

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== The Instance Value Type ==
 
== The Instance Value Type ==
  
{{PrF_UG_TOC_slots}}<div id='prf_ug'>
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<noinclude>{{PrF_UG_TOC_slots}}<div id='prf_ug'></noinclude>
  
 
A slot of type <b>Instance</b> has instances as values.
 
A slot of type <b>Instance</b> has instances as values.
More specifically,
+
More specifically, when <b>Instance</b> is selected as the value type,
when <b>Instance</b> is selected as the value type,
 
 
you specify one or more <i>allowed classes</i>.
 
you specify one or more <i>allowed classes</i>.
 
An instance of the class with this slot
 
An instance of the class with this slot
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   <li><p>
 
   <li><p>
     Select <b>Instance</b> from the
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     Select <b>Instance</b>
    [[PrF_UG_slots_value_type_menu|Value Type menu]].
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    from the [[PrF_UG_slots_value_type_menu|Value Type menu]].
 
     The <b>Allowed Classes</b> pane will be displayed.
 
     The <b>Allowed Classes</b> pane will be displayed.
   
 
    </p><p> <div>[[Image:PrF_UG_slots_value_type_instance.png|slots_value_type_instance]]</div>
 
 
     </p>
 
     </p>
 +
    <div>[[Image:PrF_UG_slots_value_type_instance.png|frame|none|
 +
          Slot Editor, "Instance" selected]]</div>
  
 
   <li><p>
 
   <li><p>
 
     To add one or more allowed classes,
 
     To add one or more allowed classes,
     click the <b>Add Class</b> button
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     click the <b>Add Class</b>
     [[Image:PrF_UG_classes_class.add.gif|classes_class.add]].
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     ([[Image:PrF_UG_classes_class.add.gif|classes_class.add]]) button.
 
     </p>
 
     </p>
  
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     Select the classes you want as allowed classes
 
     Select the classes you want as allowed classes
 
     in the <b>Select Classes</b> dialog box.
 
     in the <b>Select Classes</b> dialog box.
     To select multiple classes,
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     To select multiple classes, use the <b>Ctrl</b> (<b>Cmd</b>) key;
    use the <b>Ctrl</b> (<b>Cmd</b>) key;
+
     to select a range, use the <b>Shift</b> key.
     to select a range,
 
    use the <b>Shift</b> key.
 
   
 
    </p><p> <div>[[Image:PrF_UG_classes_classes_select.png|classes_classes_select]]</div>
 
 
     </p>
 
     </p>
 +
    <div>[[Image:PrF_UG_classes_classes_select.png|frame|none|
 +
          Select Classes dialog]]</div>
  
 
   <li><p>
 
   <li><p>
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   <li><p>
 
   <li><p>
 
     Select the classes to remove.
 
     Select the classes to remove.
     To highlight multiple classes,
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     To highlight multiple classes, use the <b>Ctrl</b> (<b>Cmd</b>) key.
    use the <b>Ctrl</b> (<b>Cmd</b>) key.
+
     To highlight a range of classes, use the <b>Shift</b> key.
     To highlight a range of classes,
 
    use the <b>Shift</b> key.
 
 
     </p>
 
     </p>
  
 
   <li><p>
 
   <li><p>
 
     Click the <b>Remove Class</b>
 
     Click the <b>Remove Class</b>
     [[Image:PrF_UG_classes_class.remove.gif|classes_class.remove]]
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     ([[Image:PrF_UG_classes_class.remove.gif|classes_class.remove]]) button
     button at the top of the <b>Allowed Classes</b> pane.
+
     at the top of the <b>Allowed Classes</b> pane.
 
     </p>
 
     </p>
 
</ol>
 
</ol>
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takes instances of the class <b>Employee</b> as values.
 
takes instances of the class <b>Employee</b> as values.
  
<div>[[Image:PrF_UG_slots_value_type_instance.png|slots_value_type_instance]]</div>
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<div>[[Image:PrF_UG_slots_value_type_instance.png|frame|none|
 +
          Slot Editor, "Instance" selected]]</div>
  
 
The instance <b>Chief_Honcho</b> is responsible for two instances
 
The instance <b>Chief_Honcho</b> is responsible for two instances
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<b>Sports Nut</b> and <b>Ms Gardiner</b>.
 
<b>Sports Nut</b> and <b>Ms Gardiner</b>.
  
<div>[[Image:PrF_UG_slots_value_type_instance_example.png|slots_value_type_instance_example]]</div>
+
<div>[[Image:PrF_UG_slots_value_type_instance_example.png|frame|none|
 +
      Responsible For pane]]</div>
  
</div>
+
 
 +
<noinclude></div></noinclude>

Latest revision as of 18:55, November 13, 2008

The Instance Value Type


Protege-Frames User's Guide
Slots
The Slots Tab
The Slot Browser
The Slot Buttons
The Slot Menu
The Slot Editor
The Value Type Menu
The Any Value Type
The Boolean Value Type
The Class Value Type
The Float Value Type
The Instance Value Type
The Integer Value Type
The String Value Type
The Symbol Value Type
Creating a New Slot
Viewing a Slot
Editing a Top-Level Slot
Overriding Slot Properties at a Class
Editing Slot Properties
Removing a Slot from a Class
Deleting a Slot from the Project
Adding a Slot to a Class
Removing Overrides From a Slot
Understanding Inverse Slots
Creating an Inverse Slot Relationship
Working with Subslots
Finding a Slot
The Slot Hierarchy Window
The Slot Icons
The Superslots Pane
Glossary, Editing Help

A slot of type Instance has instances as values. More specifically, when Instance is selected as the value type, you specify one or more allowed classes. An instance of the class with this slot then takes instances of the allowed classes or of their subclasses as the value(s) of the slot.

Setting the Value Type to Instance

To set the value type of a slot to Instance:

  1. Create the slot, or view the Slot Editor for an existing slot.

  2. Select Instance from the Value Type menu. The Allowed Classes pane will be displayed.

    Slot Editor, "Instance" selected
  3. To add one or more allowed classes, click the Add Class (classes_class.add) button.

  4. Select the classes you want as allowed classes in the Select Classes dialog box. To select multiple classes, use the Ctrl (Cmd) key; to select a range, use the Shift key.

    Select Classes dialog
  5. Click OK.

Removing an Allowed Class

To remove a class from the list of allowed classes for a slot of type Integer:

  1. Select the classes to remove. To highlight multiple classes, use the Ctrl (Cmd) key. To highlight a range of classes, use the Shift key.

  2. Click the Remove Class (classes_class.remove) button at the top of the Allowed Classes pane.

Example

In the Newspaper example, the slot responsible_for in the class Editor takes instances of the class Employee as values.

Slot Editor, "Instance" selected

The instance Chief_Honcho is responsible for two instances which are descended from Employee: Sports Nut and Ms Gardiner.

Responsible For pane