10
Temporary LOBs

Use Case Model

In this chapter we discuss each operation on a Temporary LOB (such as "See If a Temporary LOB Is Open") in terms of a use case. Table 10-1, "Use Case Model Overview: Internal Temporary LOBs" lists all the use cases.

Graphic Summary of Use Case Model

"Use Case Model Diagram: Internal Temporary LOBs (part 1 of 2)" and "Use Case Model Diagram: Internal temporary LOBs (part 2 of 2)", show the use cases and their interrelation. For the online version of this document, use these figures to navigate to specific use cases.

Individual Use Cases

Each Internal Persistent LOB use case is described as follows:

• Use case figure. Depicts the use case (see "How to Interpret the Use Case Diagrams" in the Preface, for a description of how to interpret these diagrams).

• Purpose. The purpose of this use case with regards to LOBs.

• Usage Notes. Guidelines to assist your implementation of the LOB operation.

• Syntax. Pointers to the syntax in different programmatic environments that underlies the LOBs related activity for the use case.

• Scenario. A scenario that portrays one implementation of the use case in terms of the hypothetical multimedia application (see Chapter 8, "Sample Application" for detailed syntax).

• Examples. Examples, based on table Multimedia_tab described in Chapter 8, in each programmatic environment which can be utilized to implement the use case.