code/libraries/joomlatools/component/koowa/controller/behavior/cacheable.php
protected function _afterRead(KControllerContextInterface $context)
    {
        if(!empty($this->_output)) {
            $context->result = $this->_output;
        }
    }
protected function _afterRead(KControllerContextInterface $context)
    {
        if(!empty($this->_output)) {
            $context->result = $this->_output;
        }
    }
protected function _afterRead ( KControllerContextInterface $ context ) { if ( ! empty ( $ this -> _output ) ) { $ context -> result = $ this -> _output ; } }
Return the cached data after read

Only if cached data was found return it but allow the chain to continue to allow
processing all the read commands

@param   KControllerContextInterface $context A command context object
@return 	void
Return the cached data after read