docs: public boolean isCanDelete(CacheDeleteKey cacheDeleteKey, Object[] arguments, Object retVal) throws Exception {
          boolean rv = true;
          if (null != arguments && arguments.length > 0 && null != cacheDeleteKey.condition()
                  && cacheDeleteKey.condition().length() > 0) {
              rv = this.getElValue(cacheDeleteKey.condition(), null, arguments, retVal, true, Boolean.class);
          }
          return rv;
      }