[GitHub] [struts] lukaszlenart commented on pull request #528: Potential expression cache enhancement for 2.6 series

[GitBox <gi...@apache.org>]

lukaszlenart commented on pull request #528:
URL: https://github.com/apache/struts/pull/528#issuecomment-1037946560


   You can inject them via constructor if you want to or provide a factory which will be injected into `OgnlUtil` and this factory will be used to create a proper instance of cache:
   
   ```java
   public OgnlUtil(
       @Inject(StrutsConstants.STRUTS_EXPRESSION_CACHE_FACTORY, required = false) ExpressionCacheFactory cacheFactory
   ) {
       if (cacheFactory == null) {
           // fallback to old mechanism
       } else {
          this.cache = cacheFactory.createCache();
       }
   }
   ```


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