o2 20

Ch 20 Integrating Concurrency Control

- 1 Introduction

2 User transactions and O2 Objects

20-2.

3 Constraints upon Concurrency

20-3. - Classification of Methods on Classes and Instances - Compatibility of Methods - Access Control of Classes and Instances - Creation and Deletion of Instances - Creation and Deletion of Classes

4 Object and operation properties exploited by CC

20-4. - Primitive and constructed objects - Compatibility and commutativity between operations - Independence of Objects at the Same Abstraction Level - 5 Impact of a One-Level Transaction Model

6 Impact of a Multilevel Transaction Model

20-6. - 7 Conclusion - 8 Acknowledgements References