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Add multitenancy module: Hibernate 7 @TenantId vs schema-per-tenant (shared pool + search_path, pool per tenant), JWT tenant filter, isolation failure modes on PostgreSQL 17 (Hibernate 7.4.14.Final, Spring Boot 4.1.2)

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Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b4VQVEJWetTT1dYzyJ
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asmhatre
2026-10-29 05:52:26 +00:00
co-authored by Claude Sonnet 5.5
parent ef2d2aa8ea
commit 98f4ed7411
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@@ -347,3 +347,4 @@ Modules with their own `pom.xml` that run plain Hibernate without the Spring Boo
| [`locking`](locking/) | Optimistic (`@Version`, retries) vs pessimistic (`PESSIMISTIC_WRITE`, `NOWAIT`, `SKIP LOCKED`) locking, lost updates and deadlocks on H2 (Hibernate `7.4.14.Final`) |
| [`soft-delete`](soft-delete/) | `@SoftDelete` (`DELETED` / `ACTIVE` / `TIMESTAMP`) vs `@SQLDelete` + `@SQLRestriction`: generated SQL, restore, unique constraints, associations, native-query bypass and Spring Data JPA, on H2 and PostgreSQL 17 (Hibernate `7.4.14.Final`; unlike the others this module uses the Spring Boot 4.1.1 parent, for the Spring Data tests) |
| [`migration-5-to-7`](migration-5-to-7/) | Hibernate `5.6.15.Final` vs `7.4.14.Final`: jar diff, Hibernate 5 code compiled against both, schema defaults, `hbm2ddl` validation of a Hibernate 5 schema, and cheat-sheet snippets |
| [`multitenancy`](multitenancy/) | Hibernate 7 multi-tenancy on Spring Boot 4.1.2: `@TenantId` discriminator vs schema-per-tenant (shared pool with `search_path`, and pool per tenant), tenant from a JWT claim, the `search_path` leak and the no-tenant failure modes, on PostgreSQL 17 (Hibernate `7.4.14.Final`) |