Introduction

 

Performance became a term frequently used during every WAS project and caching became a key technology to reduce cost and improve the response time.

This chapter introduces the dynamic cache service provided by WAS V5.1. We explain how and when caching can be used to improve the performance of WAS solutions.

We are looking at caching from an administrative rather than development point of view. This means that the application can benefit from a cache without requiring modification. In most cases, enabling caching is a task performed during application deployment, though in same cases the application developers need to perform specific customization, which are required by the caching framework. For example, when it comes to more granular caching techniques, such as command caching, application developers have to develop the code according to WebSphere caching specifications. We address such customization in Command result caching.

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WebSphere is a trademark of the IBM Corporation in the United States, other countries, or both.

 

IBM is a trademark of the IBM Corporation in the United States, other countries, or both.