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User Guide
The information contained in this section applies to IBM WebSphere Commerce Version 7.0.0.9 and Feautre Pack 8. The documentation also applies to all subsequent releases and modifications until otherwise indicated in new editions.
Administering
Dynamic caching
In general, caching improves response time and reduces system load. Caching techniques are used to improve the performance of World Wide Web Internet applications. Most techniques cache static content (content that rarely changes) such as graphic and text files. However, many websites serve dynamic content, containing personalized information or data that changes more frequently. Caching dynamic content requires more sophisticated caching techniques, such as those provided by the WebSphere Application Server dynamic cache, a built-in service for caching and serving dynamic content.
Improving store performance through Commerce Composer JSP caching
There are two types of JSP components within the Commerce Composer solution. Each can be cached for improved site performance.
Widget caching and invalidation
Site and store-level widgets can be cached for improved store performance.
Enabling widget caching in WebSphere Commerce Developer
Commerce Composer widget caching is not enabled by default in the development environment. You can enable widget caching in developer by modifying the WebSphere Commerce configuration file.

Enabling Commerce Composer widget caching in WebSphere Commerce Developer

Commerce Composer widget caching is not enabled by default in the development environment. You can enable widget caching in developer by modifying the WebSphere Commerce configuration file.

Procedure

Open the workspace_dir\WC\xml\config\ directory.
Open the WebSphere Commerce configuration file for editing (wc-server.xml).

Add the following map:

<map className="com.ibm.commerce.dynacache.filter.DeviceFormatIdCallBack" 
display="false" 
dynacacheAttributeName="DC_deviceFormatId" 
methodName="setDeviceFormatId" 
name="setDeviceFormatId"/>

Save and close the XML file.