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Use Read-Only Beans to Improve Performance If Stale Data Is Tolerable
Use Read-Write Beans for Higher Data Consistency
Combine Read-Only and Read-Write Beans to Optimize Performance
Use Session Facades to Optimize Performance for Remote Entity Beans
Avoid the Use of Transfer Objects
Distributing Transactions Across Beans
Costly Option: Distributing Transactions Across Databases
When to Use Bean-Managed Transactions
Keep Bean-Managed Transactions Short
Calling multiple EJBs from a client’s transaction context
Using an EJB “Wrapper” to Encapsulate a Cross-EJB Transaction
Specifying Relationship Cardinality
Specifying Relationship Directionality
One-to-One and One-to-Many Relationships
Specifying CMRs for EJBs that Map to Multiple Tables
Turning Off Suspension of a JMS Connection
DISTINCT Clause with Subqueries
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