asmhatreandClaude Sonnet 5.5
98f4ed7411
Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b4VQVEJWetTT1dYzyJ
44 lines
2.6 KiB
Plaintext
44 lines
2.6 KiB
Plaintext
# @TenantId on PostgreSQL (PostgreSQL 17.11), Hibernate 7.4.14.Final
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== DDL Hibernate generated (read back from the catalog)
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column amount numeric nullable=YES
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column id bigint nullable=NO
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column number character varying nullable=YES
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column tenant_id character varying nullable=NO
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unique UNIQUE (tenant_id, number)
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== insert: nobody sets tenant_id in Java
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-- as acme: save(INV-1)
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sql> insert into invoice (amount,number,tenant_id) values (?,?,?)
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entity.tenantId after save = acme
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-- as globex: save(INV-1) - same invoice number, allowed by UNIQUE(tenant_id, number)
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sql> insert into invoice (amount,number,tenant_id) values (?,?,?)
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ids: acme INV-1=1, globex INV-1=2 (one IDENTITY column shared by all tenants)
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== reads are filtered
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-- as acme: findAll()
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sql> select i1_0.id,i1_0.amount,i1_0.number,i1_0.tenant_id from invoice i1_0 where i1_0.tenant_id = ?
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rows = 2, numbers = [INV-1, INV-2]
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-- as globex: findById(acme's id 1)
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sql> select i1_0.id,i1_0.amount,i1_0.number,i1_0.tenant_id from invoice i1_0 where i1_0.id=? and i1_0.tenant_id = ?
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result = Optional.empty
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== bulk HQL is scoped too
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-- as acme: update Invoice set amount = 0
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sql> update invoice i1_0 set amount=0 where i1_0.tenant_id = ?
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rows updated = 2 (globex's row untouched)
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== what @TenantId does NOT cover: native SQL
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-- as acme: native query select count(*) from invoice
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result = 3 (acme owns 2 rows; the native query saw every tenant)
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== no tenant set
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-- strict resolver (throws when TenantContext is empty): repo.findAll() with no tenant
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org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction <- caused by com.ankurm.multitenancy.tenant.MissingTenantException: no tenant in TenantContext: refusing to open a tenant-scoped session
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-- lenient resolver (returns null): repo.findAll() with no tenant
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org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction <- caused by org.hibernate.HibernateException: SessionFactory configured for multi-tenancy, but no tenant identifier specified
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== writing a row for a different tenant than the session's
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-- as acme: new Invoice with tenantId manually set to globex, saveAndFlush
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org.springframework.dao.DataIntegrityViolationException: assigned tenant id differs from current tenant id [globex != acme] for entity com.ankurm.multitenancy.discriminator.Invoice.tenantId <- caused by org.hibernate.PropertyValueException: assigned tenant id differs from current tenant id [globex != acme] for entity com.ankurm.multitenancy.discriminator.Invoice.tenantId
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