Expose formally protected method in ConfigListener

library/Zend/ModuleManager/Listener/ConfigListener.php

@@ -277,6 +277,21 @@ public function addConfigStaticPath($staticPath)
         return $this;
     }
 
+    /**
+     * Whether the config is already cached
+     *
+     * @return bool
+     */
+    public function hasCachedConfig()
+    {
+        if (($this->getOptions()->getConfigCacheEnabled())
+            && (file_exists($this->getOptions()->getConfigCacheFile()))
+        ) {
+            return true;
+        }
+        return false;
+    }
+
     /**
      * Add an array of paths of config files to merge after loading modules
      *
@@ -373,19 +388,6 @@ protected function addConfigByPath($path, $type)
         return $this;
     }
 
-    /**
-     * @return bool
-     */
-    protected function hasCachedConfig()
-    {
-        if (($this->getOptions()->getConfigCacheEnabled())
-            && (file_exists($this->getOptions()->getConfigCacheFile()))
-        ) {
-            return true;
-        }
-        return false;
-    }
-
     /**
      * @return mixed
      */

library/Zend/ModuleManager/Listener/ConfigMergerInterface.php

@@ -34,4 +34,11 @@ public function getMergedConfig($returnConfigAsObject = true);
      * @return ConfigMergerInterface
      */
     public function setMergedConfig(array $config);
+
+    /**
+     * Whether the config is already cached
+     *
+     * @return bool
+     */
+    public function hasCachedConfig();
 }