Spring/spring-data-commons
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Polishing.

Browse Source 
See #2416
This commit is contained in:
Mark Paluch
2021-09-07 09:22:42 +02:00
parent d9e1303185
commit c0d85aabc5
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/main/asciidoc/is-new-state-detection.adoc
View File

@@ -7,14 +7,14 @@ The following table describes the strategies that Spring Data offers for detecti
[options = "autowidth",cols="1,1"]
|===
|`@Id`-Property inspection (the default)
|By default, Spring Data inspects the id property of the given entity.
If the id property is `null` or `0` in case of primitive types, then the entity is assumed to be new.
|By default, Spring Data inspects the identifier property of the given entity.
If the identifier property is `null` or `0` in case of primitive types, then the entity is assumed to be new.
Otherwise, it is assumed to not be new.
|`@Version`-Property inspection
|If a property annotated with `@Version` is present and `null`, or in case of a version property of primitive type `0` the entity is considered new.
If the version property is present but has a different value, the entity is considered to not be new.
If no version property is present Spring Data falls back to inspection of the id property.
If no version property is present Spring Data falls back to inspection of the identifier property.
|Implementing `Persistable`
|If an entity implements `Persistable`, Spring Data delegates the new detection to the `isNew(…)` method of the entity.