Add soft-delete module: @SoftDelete (DELETED/ACTIVE/TIMESTAMP) vs @SQLDelete + @SQLRestriction on Hibernate 7.4.14.Final, H2 and PostgreSQL 17

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b7rnC7jppGGdHGESvy
2026-10-28 18:22:03 +00:00
parent aea104f021
commit c9faf35e61
43 changed files with 2084 additions and 0 deletions
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+Spring Data JPA over @SoftDelete (boolean strategy), H2, Hibernate 7.4.14.Final
+
+== save, count, deleteById, findById
+-- count()
+   sql> select count(*) from article_deleted ad1_0 where ad1_0.deleted=false
+-- deleteById(1)
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false and ad1_0.id=?
+   sql> update article_deleted set deleted=true where id=? and deleted=false
+-- findById(1)
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false and ad1_0.id=?
+isPresent = false
+-- existsById(1)
+   sql> select count(*) from article_deleted ad1_0 where ad1_0.id=? and ad1_0.deleted=false
+existsById = false
+-- count() and findAll().size()
+   sql> select count(*) from article_deleted ad1_0 where ad1_0.deleted=false
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false
+count = 2, findAll = 2
+
+== derived queries and derived deletes
+-- countByTitle("x")
+   sql> select count(ad1_0.id) from article_deleted ad1_0 where ad1_0.title=? and ad1_0.deleted=false
+countByTitle(x) = 1
+-- deleteByTitle("x")
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.title=? and ad1_0.deleted=false
+   sql> update article_deleted set deleted=true where id=? and deleted=false
+returned 1
+
+== deleting something that is already (soft) deleted
+-- deleteById(1) again
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false and ad1_0.id=?
+no exception
+-- delete(staleEntity) with the instance saved earlier
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false and ad1_0.id=?
+no exception
+
+== save() of a detached instance whose row is soft-deleted
+-- save(saved.get(0))
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false and ad1_0.id=?
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false and ad1_0.id=?
+result: ObjectOptimisticLockingFailureException -> StaleObjectStateException: Row was already updated or deleted by another transaction for entity [com.ankurm.softdelete.ArticleDeleted with id '1']
+
+== bulk delete, native queries, restore
+-- @Query("delete from ArticleDeleted a where a.title = :title")  bulkDeleteByTitle("z")
+   sql> update article_deleted ad1_0 set deleted=true where ad1_0.title=? and ad1_0.deleted=false
+returned 1
+-- count() vs native count(*)
+   sql> select count(*) from article_deleted ad1_0 where ad1_0.deleted=false
+   sql> select count(*) from article_deleted
+count() = 1, countIncludingDeleted() = 4
+-- native findEvenIfDeleted(1)
+   sql> select * from article_deleted where id = ?
+present = true
+-- native restore(1)
+   sql> update article_deleted set deleted = false where id = ?
+rows updated: 1
+-- findById(1) after restore
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false and ad1_0.id=?
+isPresent = true
+
+== deleteAll variants
+-- deleteAllInBatch()
+   sql> update article_deleted ad1_0 set deleted=true where ad1_0.deleted=false
+count() = 0, countIncludingDeleted() = 4
+-- deleteAll()
+   sql> select ad1_0.id,ad1_0.title from article_deleted ad1_0 where ad1_0.deleted=false
+   sql> update article_deleted set deleted=true where id=? and deleted=false
+count() = 0