Accessing objects and navigating meta-levels in code
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A single link in runtime is implemented in an IObject as an IObjectReference, i.e. a link that points to another object.  
A single link in runtime is implemented in an IObject as an IObjectReference, i.e. a link that points to another object.  


Then one can write:
Then one can write:<blockquote>If ((destinationMember as IObjectReference).ObjectInstance.asObject == null)</blockquote>i.e. the member as a single link - does it have an object on the other end?


If ((destinationMember as IObjectReference).ObjectInstance.asObject == null)
'''Note!''' ObjectInstance is always non-null; it is the object holding information about the link-end. It can be a nullObjectImpl, which is an object.
 
i.e. the member as a single link - does it have an object on the other end?
 
'''Note!''' ObjectInstance is always non-null - it's the object holding information about the link-end. It can be a nullObjectImpl, which is an object.
[[Category:Advanced]]
[[Category:Advanced]]
[[Category:MDriven Framework]]
[[Category:MDriven Framework]]

Revision as of 07:12, 28 June 2023

Single-link

A single link in runtime is implemented in an IObject as an IObjectReference, i.e. a link that points to another object.

Then one can write:

If ((destinationMember as IObjectReference).ObjectInstance.asObject == null)

i.e. the member as a single link - does it have an object on the other end?

Note! ObjectInstance is always non-null; it is the object holding information about the link-end. It can be a nullObjectImpl, which is an object.

This page was edited 28 days ago on 08/23/2024. What links here