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How It Stacks Up

How the objects in “Important Objects” work together is a bit complicated. It gets even more complicated if you customize the core stack. “Figure 5-1” shows a simplified overview of the core stack. The interactions between the objects in the core stack are discussed throughout this chapter.

The most important part of “Figure 5-1,” perhaps, is that all an application’s sessions use the same object store coordinator. This means that multiple users using the same application instance share a connection to the database and share row-level snapshots of data retrieved from each database (because they share the same database context). This has advantages and disadvantages. See “Multiple Coordinators and Optimistic Locking” for more details.

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