Alternative approach with eager fetch

Author: Dave Syer

src/main/java/org/springframework/samples/petclinic/owner/OwnerController.java

@@ -18,7 +18,6 @@
 import java.util.List;
 import java.util.Map;
 
-import javax.transaction.Transactional;
 import javax.validation.Valid;
 
 import org.springframework.data.domain.Page;
@@ -154,13 +153,9 @@ public String processUpdateOwnerForm(@Valid Owner owner, BindingResult result,
 	 * @return a ModelMap with the model attributes for the view
 	 */
 	@GetMapping("/owners/{ownerId}")
-	@Transactional
 	public ModelAndView showOwner(@PathVariable("ownerId") int ownerId) {
 		ModelAndView mav = new ModelAndView("owners/ownerDetails");
 		Owner owner = this.owners.findById(ownerId);
-		for (Pet pet : owner.getPets()) {
-			pet.getVisits().size();
-		}
 		mav.addObject(owner);
 		return mav;
 	}

src/main/java/org/springframework/samples/petclinic/owner/Pet.java

@@ -52,7 +52,7 @@ public class Pet extends NamedEntity {
 	@JoinColumn(name = "type_id")
 	private PetType type;
 
-	@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+	@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
 	@JoinColumn(name = "pet_id")
 	@OrderBy("visit_date ASC")
 	private Set<Visit> visits = new LinkedHashSet<>();