gpslab / cqrs

use GpsLab\Component\Command\Handler\CommandHandler;

use GpsLab\Component\Command\Command;

class DirectBindingCommandHandlerLocator implements CommandHandlerLocator

{

    /**

     * @var CommandHandler[]

     */

    private $handlers = [];

    /**

     * Bind command handler to concrete command by class name.

     *

     * @param string         $command_name

     * @param CommandHandler $handler

     */

    public function registerHandler($command_name, CommandHandler $handler)

    {

        $this->handlers[$command_name] = $handler;

    }

    /**

     * @param Command $command

     *

     * @return CommandHandler|null

     */

    public function getCommandHandler(Command $command)

    {

        $command_name = get_class($command);

        return isset($this->handlers[$command_name]) ? $this->handlers[$command_name] : null;

    }

}

use GpsLab\Component\Query\Handler\QueryHandler;

use GpsLab\Component\Query\Query;

class DirectBindingQueryHandlerLocator implements QueryHandlerLocator

{

    /**

     * @var QueryHandler[]

     */

    private $handlers = [];

    /**

     * Bind query handler to concrete query by class name.

     *

     * @param string       $query_name

     * @param QueryHandler $handler

     */

    public function registerHandler($query_name, QueryHandler $handler)

    {

        $this->handlers[$query_name] = $handler;

    }

    /**

     * @param Query $query

     *

     * @return QueryHandler|null

     */

    public function getQueryHandler(Query $query)

    {

        $query_name = get_class($query);

        return isset($this->handlers[$query_name]) ? $this->handlers[$query_name] : null;

    }

}