/**
* Build the config for the id key
*
* @return NodeDefinition
*/
protected function addIdNode()
{
$builder = new TreeBuilder();
$node = $builder->root('id');
$node->useAttributeAsKey('name')->requiresAtLeastOneElement()->prototype('array')->children()->scalarNode('type')->isRequired()->cannotBeEmpty()->end()->arrayNode('generator')->children()->enumNode('strategy')->values(Generators::getStrategies())->defaultValue('UUID')->end()->end()->end()->end()->end();
return $node;
}
