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薛元揆 (Study Hsueh)
study.hsueh@cacafly.com
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Application
Tenant#1 Tenant#N
Tenant#1
Application
Tenant#2 Tenant#N
Application Application
Server
WAR WAR WAR
Tenant#1
Application
Tenant#2 Tenant#N
Server
WAR
•
•
•
•
•
•
Server
Web Layer
Service Layer
Persistence Layer
2. pass tenant-id
to service layer
3. pass tenant-id
to persistence layer
Client
1. assign tenant-id when user login, and then 

make a tenant-related request
•
Service
Layer
Web
Layer
Persistence
Layer
•
Service
Layer
Web
Layer
Persistence
Layer
• 

Persistence
Layer
•
Persistence
Layer
•
Model
•
Model
•
•
• 

Application
Tenant#1 Tenant#N
Application
Tenant#1 Tenant#NTenant#2
DB#1 DB#2 DB#N
Application
Tenant#1 Tenant#NTenant#2
DB
Application
Tenant#1 Tenant#NTenant#2
DB
Performance Management Backup Scalable API Cost
Separate
Database
Separate
Schema
Discriminator
Column
JPA 2.1
Hibernate 4.3.6
Final
EclipseLink 2.5.2
Separate
database supported supported supported
Separate
schema
no
(candidate in JEE 8)
supported supported
Discriminator
column
no
(candidate in JEE 8)
no
(will support in 5.0)
supported
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薛元揆 (Study Hsueh)
study.hsueh@cacafly.com
@phstudy

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Simplify Multi-Tenant Queries in ORM Frameworks