public IEnumerable <Place> FindByCategory(Guid categoryId)
 {
     return(this.AllMatching(PlaceSpecifications.ByCategory(categoryId)));
 }
 public IEnumerable <Place> FindByName(string name)
 {
     return(this.AllMatching(PlaceSpecifications.ByName(name)));
 }
 public IEnumerable <Place> FindByAddress(Address address)
 {
     return(this.AllMatching(PlaceSpecifications.ByAddress(address)));
 }