/**
  * @param prj Projection.
  * @return {@link org.apache.ignite.IgniteMessaging} for given projection.
  */
 protected IgniteMessaging message(ClusterGroup prj) {
   return prj.ignite().message(prj);
 }
 /**
  * @param prj Projection.
  * @return {@link org.apache.ignite.IgniteMessaging} for given projection.
  */
 protected IgniteEvents events(ClusterGroup prj) {
   return prj.ignite().events(prj);
 }
 /**
  * @param prj Projection.
  * @return {@link org.apache.ignite.IgniteCompute} for given projection.
  */
 protected IgniteCompute compute(ClusterGroup prj) {
   return prj.ignite().compute(prj);
 }