ENHANCED_CLASS_GENERATOR. 

The generator class which generates the extended class for weaving in an aspect is specified.

seasar\aop\Config::$ENHANCED_CLASS_GENERATOR = 'seasar\aop\EnhancedClassGenerator';

CACHING. 

It is set up whether the extended class generated in order to weave in aspect is outputted to a file.

seasar\aop\Config::$CACHING = false;

CACHE_DIR. 

The output directory in the case of outputting the extended class to a file is specified.

seasar\aop\Config::$CACHE_DIR = null;