14 Tenant Isolation Using EclipseLink

With EclipseLink, you can develop a single application and then deploy it for different clients, or "tenants," with varying degrees of application and data isolation and of tenant-specific functionality. For example, a large company may develop a single payroll application to be used by multiple divisions. Each division has access to its own data and to shared data, but they cannot see any other division's data.

This chapter includes the following sections:

• Introduction to the Solution

• Using Single-Table Multi-Tenancy

• Using Table-Per-Tenant Multi-Tenancy

• Using VPD Multi-Tenancy

• Additional Resources

Use Case

Multiple application clients must share data sources, with private access to their data, for example in a Software as a Service (SaaS) environment.

Solution

Decide on a strategy for tenant isolation; then use EclipseLink's tenant isolation features to implement the strategy.

Components

• EclipseLink 2.4 or later.

• A compliant Java Database Connectivity (JDBC) database, such as Oracle Database, Oracle Express, or MySQL.