ConfigurationRuleSetExtensionFactory.getDefaultInstance().
extendProcessRuleSet(prefix, digester);
// add the cache operation rule set for the
//<pipeline-configuration>/<caching-operation>
CacheOperationRuleSet cacheOperationRuleSet =
new CacheOperationRuleSet(prefix);
cacheOperationRuleSet.addRuleInstances(digester);
// add the web driver rule set for the
// <pipeline-configuration>/<web-driver> element
WebDriverRuleSet webDriverRuleSet = new WebDriverRuleSet(prefix);
webDriverRuleSet.addRuleInstances(digester);