mirrors/eiffel-org
1
0
Fork 0
mirror of https://github.com/EiffelSoftware/eiffel-org.git synced 2025-12-06 06:42:03 +01:00
Code Issues Packages Projects Releases Wiki Activity

Compare commits

base: mirrors:920a5b75efdfdcef6e1c2ec3765a1217c0f63a16
Branches Tags
mirrors:master
..
compare: mirrors:306f638a4862f2a9c9ecfd48fac93a06eea151ed
Branches Tags
mirrors:master

2 Commits
920a5b75ef ... 306f638a48

Author SHA1 Message Date
eiffel-org
306f638a48 Updated wikipage ET: The Dynamic Structure: Execution Model. (Signed-off-by:jocelyn). 
git-svn-id: https://svn.eiffel.com/eiffel-org/trunk@2482 abb3cda0-5349-4a8f-a601-0c33ac3a8c38
 2024-08-13 09:46:34 +00:00
eiffel-org
20d4f5d984 replaced obsolete link to SED, with [[Persistence, storage, and retrieval#With_the_SED_persistence_format]] 
Updated wikipage ET: The Dynamic Structure: Execution Model.
	(Signed-off-by:jocelyn).

git-svn-id: https://svn.eiffel.com/eiffel-org/trunk@2481 abb3cda0-5349-4a8f-a601-0c33ac3a8c38
 2024-08-13 09:45:31 +00:00
1 changed files with 2 additions and 2 deletions
Expand all files Collapse all files

4
documentation/24.05/eiffel/Tutorials/eiffel-tutorial-et/et-dynamic-structure-execution-model.wiki
View File

@@ -1,4 +1,4 @@
[[Property:modification_date|Mon, 09 Oct 2023 15:00:21 GMT]]
[[Property:modification_date|Tue, 13 Aug 2024 09:46:34 GMT]]
[[Property:publication_date|Mon, 23 Jan 2023 09:14:48 GMT]]
[[Property:title|ET: The Dynamic Structure: Execution Model]]
[[Property:weight|-10]]
@@ -671,7 +671,7 @@ These attribute specializations are presented in the [[Void-safe programming in
Another special type of attribute supported by Eiffel Software's compiler is the '''transient attribute'''. When an instance of a class to which a transient attribute belongs is saved to persistent storage, the field for the transient attribute is not included. So, transient attributes are transient in the sense that they are part of the object at runtime, but not when the object is stored on disk.
This type of attribute has benefits when using the persistence mechanisms provided with EiffelStudio, like [http://eiffel.com/developers/learning_maps/Training/Maps/PersistenceCanPayOff/Serialization.html SED]. Because transient attributes are not stored, they need not be accounted for upon retrieval. So, objects stored before changes to a class that only affect transient attributes will still be retrievable using the new class definition (whereas, if non-transient attributes were changed, a mismatch would occur during retrieval).
This type of attribute has benefits when using the persistence mechanisms provided with EiffelStudio, like [[Persistence, storage, and retrieval#With_the_SED_persistence_format|SED]]. Because transient attributes are not stored, they need not be accounted for upon retrieval. So, objects stored before changes to a class that only affect transient attributes will still be retrievable using the new class definition (whereas, if non-transient attributes were changed, a mismatch would occur during retrieval).
An attribute is marked as transient by including a note option in its declaration: