PrF UG meta metaslot intro - Revision history

RichMorin at 01:28, November 14, 2008

2008-11-14T01:28:37Z

RichMorin at 19:15, October 29, 2008

2008-10-29T19:15:32Z

RichMorin at 23:56, October 24, 2008

2008-10-24T23:56:12Z

RichMorin at 19:00, October 16, 2008

2008-10-16T19:00:35Z

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2008-10-16T19:00:09Z

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__NOTOC__
== Understanding Slot Metaclasses ==

{{PrF_UG_TOC_meta}}<div id='prf_ug'>

Slot metaclasses are similar to
[[PrF_UG_meta_metaclass_intro|metaclasses]],
except that they determine the properties of slots instead of classes.
Therefore,
a slot metaclass is a metaclass that can be used as a template to determine the way {{#var:PrF}} constructs a slot.
By creating a new slot metaclass,
you can create a different template for selected slots and attach additional information to your slot at the class level.

Note that slot metaclasses appear at the Classes Tab as the <b>:SLOT</b> hierarchy.
This is because every slot is an <i>instance</i> of a slot meta <i>class</i>.
Slots are <i>not</i> values or subslots of a global slot.
As with metaclasses,
every subclass of a slot metaclass is also a slot metaclass.

Similar to metaclasses,
slots are normally created using <b>:STANDARD-SLOT</b>,
which provides the structure for slot attributes such as name,
value type,
etc.
When you create a new slot metaclass,
you will most often want to create it subordinate to <b>:STANDARD-SLOT</b>,
so that any slots created using the slot metaclass will have the various properties defined by <b>:STANDARD-SLOT</b>.

<div>[[Image:PrF_UG_meta_metaslot_hierarchy.png|metaclasses_metaslot_hierarchy]]</div>

</div>

@@ Line 2: / Line 2: @@
 == Understanding Slot Metaclasses ==
-{{PrF_UG_TOC_meta}}<div id='prf_ug'>
+<noinclude>{{PrF_UG_TOC_meta}}<div id='prf_ug'></noinclude>
 Slot metaclasses are similar
@@ Line 29: / Line 29: @@
-</div>
+<noinclude></div></noinclude>

@@ Line 13: / Line 13: @@
 and attach additional information to your slot at the class level.
-Note that slot metaclasses appear at the Classes Tab as the <b>:SLOT</b> hierarchy.
+Note that slot metaclasses appear at the Classes tab as the <b>:SLOT</b> hierarchy.
 This is because every slot is an <i>instance</i> of a slot meta <i>class</i>.
 Slots are <i>not</i> values or subslots of a global slot.

@@ Line 25: / Line 25: @@
 will have the various properties defined by <b>:STANDARD-SLOT</b>.
-<div>[[Image:PrF_UG_meta_metaslot_hierarchy.png|
+<div>[[Image:PrF_UG_meta_metaslot_hierarchy.png|frame|none|
-        metaclasses_metaslot_hierarchy]]</div>
+        "Class Browser, ":SLOT" selected]]</div>
 </div>

@@ Line 4: / Line 4: @@
 {{PrF_UG_TOC_meta}}<div id='prf_ug'>
-Slot metaclasses are similar to
+Slot metaclasses are similar
-[[PrF_UG_meta_metaclass_intro|metaclasses]],
+to [[PrF_UG_meta_metaclass_intro|metaclasses]],
 except that they determine the properties of slots instead of classes.
-Therefore,
+Therefore, a slot metaclass is a metaclass that can be used as a template
-a slot metaclass is a metaclass that can be used as a template to determine the way {{#var:PrF}} constructs a slot.
+to determine the way {{#var:PrF}} constructs a slot.
 By creating a new slot metaclass,
-you can create a different template for selected slots and attach additional information to your slot at the class level.
+you can create a different template for selected slots
 Note that slot metaclasses appear at the Classes Tab as the <b>:SLOT</b> hierarchy.
 This is because every slot is an <i>instance</i> of a slot meta <i>class</i>.
 Slots are <i>not</i> values or subslots of a global slot.
-As with metaclasses,
+As with metaclasses, every subclass of a slot metaclass is also a slot metaclass.
-Similar to metaclasses,
+Similar to metaclasses, slots are normally created using <b>:STANDARD-SLOT</b>,
-slots are normally created using <b>:STANDARD-SLOT</b>,
+which provides the structure for slot attributes such as name, value type, etc.
 When you create a new slot metaclass,
 you will most often want to create it subordinate to <b>:STANDARD-SLOT</b>,
-so that any slots created using the slot metaclass will have the various properties defined by <b>:STANDARD-SLOT</b>.
+so that any slots created using the slot metaclass
 <div>[[Image:PrF_UG_meta_metaslot_hierarchy.png|metaclasses_metaslot_hierarchy]]</div>
 </div>