 ClassCacheCacheWarmer   class ClassCacheCacheWarmer implements CacheWarmerInterface   Generates the Class Cache (classes.php) file.  Methods      warmUp(string $cacheDir) Warms up the cache.  
   bool   isOptional() Checks whether this warmer is optional or not.  
  Details                        
    warmUp(string $cacheDir)
          Warms up the cache. Parameters   string $cacheDir The cache directory                         bool
    isOptional()
          Checks whether this warmer is optional or not. Return Value   bool true if the warmer is optional, false otherwise   

    
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