46 class ConstraintSamplerAllocator
 
   57   virtual ConstraintSamplerPtr 
alloc(
const planning_scene::PlanningSceneConstPtr& scene, 
const std::string& group_name,
 
   58                                      const moveit_msgs::Constraints& constr) = 0;
 
   60   virtual bool canService(
const planning_scene::PlanningSceneConstPtr& scene, 
const std::string& group_name,
 
   61                           const moveit_msgs::Constraints& constr) 
const = 0;