Difference between revisions of "MetaProperty"
m (moved Metaproperty to MetaProperty over redirect) |
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For enhanced reuse, MetaProperties can be organized in a Pool and linked to many MetaClasses, using the [[SYSREL_METAPROPERTY|Systemrelation MetaProperty]] | For enhanced reuse, MetaProperties can be organized in a Pool and linked to many MetaClasses, using the [[SYSREL_METAPROPERTY|Systemrelation MetaProperty]] | ||
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| + | == Initial value == | ||
| + | The initial value of a MetaProperty defines which value will be set to the property initially when a new instance of it is created. Once the value is changed, the initial value is lost for this instance. | ||
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| + | == Default value == | ||
| + | The default value of a MetaProperty defines which value will be delivered by a property if it doesn't have an own value set. | ||
[[Category:UBIK Object]] | [[Category:UBIK Object]] | ||
Revision as of 10:52, 24 April 2013
Basics
In UBIK, a MetaProperty describes a single feature of a certain MetaClass. A MetaProperty will never hold own values, but it serves as a definition for a resulting BaseProperty on a derived ContentClass.
For enhanced reuse, MetaProperties can be organized in a Pool and linked to many MetaClasses, using the Systemrelation MetaProperty
Initial value
The initial value of a MetaProperty defines which value will be set to the property initially when a new instance of it is created. Once the value is changed, the initial value is lost for this instance.
Default value
The default value of a MetaProperty defines which value will be delivered by a property if it doesn't have an own value set.
