private function addServiceSection(ArrayNodeDefinition $node)
    {
        $node
            ->children()
                ->arrayNode('service')
                    ->addDefaultsIfNotSet()
                    ->children()
                        ->scalarNode('class')
                            ->defaultValue(Service\Queue::class)->cannotBeEmpty()
                        ->end()
                        ->scalarNode('alias')
                            ->defaultValue('queue')->cannotBeEmpty()
                        ->end()
                        ->scalarNode('storage')
                            ->defaultValue('redis')->cannotBeEmpty()
                        ->end()
                    ->end()
                ->end()
            ->end();
    }
private function addServiceSection(ArrayNodeDefinition $node)
    {
        $node
            ->children()
                ->arrayNode('service')
                    ->addDefaultsIfNotSet()
                    ->children()
                        ->scalarNode('class')
                            ->defaultValue(Service\Queue::class)->cannotBeEmpty()
                        ->end()
                        ->scalarNode('alias')
                            ->defaultValue('queue')->cannotBeEmpty()
                        ->end()
                        ->scalarNode('storage')
                            ->defaultValue('redis')->cannotBeEmpty()
                        ->end()
                    ->end()
                ->end()
            ->end();
    }
private function addServiceSection ( ArrayNodeDefinition $ node ) { $ node -> children ( ) -> arrayNode ( 'service' ) -> addDefaultsIfNotSet ( ) -> children ( ) -> scalarNode ( 'class' ) -> defaultValue ( Service \ Queue :: class ) -> cannotBeEmpty ( ) -> end ( ) -> scalarNode ( 'alias' ) -> defaultValue ( 'queue' ) -> cannotBeEmpty ( ) -> end ( ) -> scalarNode ( 'storage' ) -> defaultValue ( 'redis' ) -> cannotBeEmpty ( ) -> end ( ) -> end ( ) -> end ( ) -> end ( ) ; }
Adds the sb_queue.service configuration.

@param ArrayNodeDefinition $node
Adds the sb_queue . service configuration .