Add pagination for owners and vets lists in HTML

Fixes #91

src/main/java/org/springframework/samples/petclinic/model/BaseEntity.java

@@ -15,12 +15,11 @@
  */
 package org.springframework.samples.petclinic.model;
 
-import java.io.Serializable;
-
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.MappedSuperclass;
+import java.io.Serializable;
 
 /**
  * Simple JavaBean domain object with an id property. Used as a base class for objects

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

@@ -24,6 +24,7 @@ import java.util.Set;
 import javax.persistence.CascadeType;
 import javax.persistence.Column;
 import javax.persistence.Entity;
+import javax.persistence.FetchType;
 import javax.persistence.OneToMany;
 import javax.persistence.Table;
 import javax.validation.constraints.Digits;
@@ -59,7 +60,7 @@ public class Owner extends Person {
 	@Digits(fraction = 0, integer = 10)
 	private String telephone;
 
-	@OneToMany(cascade = CascadeType.ALL, mappedBy = "owner")
+	@OneToMany(cascade = CascadeType.ALL, mappedBy = "owner", fetch = FetchType.EAGER)
 	private Set<Pet> pets;
 
 	public String getAddress() {

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

@@ -15,6 +15,14 @@
  */
 package org.springframework.samples.petclinic.owner;
 
+import java.util.List;
+import java.util.Map;
+
+import javax.validation.Valid;
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
 import org.springframework.samples.petclinic.visit.VisitRepository;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
@@ -24,12 +32,9 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.InitBinder;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.servlet.ModelAndView;
 
-import javax.validation.Valid;
-import java.util.Collection;
-import java.util.Map;
-
 /**
  * @author Juergen Hoeller
  * @author Ken Krebs
@@ -43,7 +48,7 @@ class OwnerController {
 
 	private final OwnerRepository owners;
 
-	private VisitRepository visits;
+	private final VisitRepository visits;
 
 	public OwnerController(OwnerRepository clinicService, VisitRepository visits) {
 		this.owners = clinicService;
@@ -80,7 +85,8 @@ class OwnerController {
 	}
 
 	@GetMapping("/owners")
-	public String processFindForm(Owner owner, BindingResult result, Map<String, Object> model) {
+	public String processFindForm(@RequestParam(defaultValue = "1") int page, Owner owner, BindingResult result,
+			Model model) {
 
 		// allow parameterless GET request for /owners to return all records
 		if (owner.getLastName() == null) {
@@ -88,24 +94,43 @@ class OwnerController {
 		}
 
 		// find owners by last name
-		Collection<Owner> results = this.owners.findByLastName(owner.getLastName());
-		if (results.isEmpty()) {
+		String lastName = owner.getLastName();
+		Page<Owner> ownersResults = findPaginatedForOwnersLastName(page, lastName);
+		if (ownersResults.isEmpty()) {
 			// no owners found
 			result.rejectValue("lastName", "notFound", "not found");
 			return "owners/findOwners";
 		}
-		else if (results.size() == 1) {
+		else if (ownersResults.getTotalElements() == 1) {
 			// 1 owner found
-			owner = results.iterator().next();
+			owner = ownersResults.iterator().next();
 			return "redirect:/owners/" + owner.getId();
 		}
 		else {
 			// multiple owners found
-			model.put("selections", results);
-			return "owners/ownersList";
+			lastName = owner.getLastName();
+			return addPaginationModel(page, model, lastName, ownersResults);
 		}
 	}
 
+	private String addPaginationModel(int page, Model model, String lastName, Page<Owner> paginated) {
+		model.addAttribute("listOwners", paginated);
+		List<Owner> listOwners = paginated.getContent();
+		model.addAttribute("currentPage", page);
+		model.addAttribute("totalPages", paginated.getTotalPages());
+		model.addAttribute("totalItems", paginated.getTotalElements());
+		model.addAttribute("listOwners", listOwners);
+		return "owners/ownersList";
+	}
+
+	private Page<Owner> findPaginatedForOwnersLastName(int page, String lastname) {
+
+		int pageSize = 5;
+		Pageable pageable = PageRequest.of(page - 1, pageSize);
+		return owners.findByLastName(lastname, pageable);
+
+	}
+
 	@GetMapping("/owners/{ownerId}/edit")
 	public String initUpdateOwnerForm(@PathVariable("ownerId") int ownerId, Model model) {
 		Owner owner = this.owners.findById(ownerId);

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

@@ -15,8 +15,8 @@
  */
 package org.springframework.samples.petclinic.owner;
 
-import java.util.Collection;
-
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.Repository;
 import org.springframework.data.repository.query.Param;
@@ -42,9 +42,10 @@ public interface OwnerRepository extends Repository<Owner, Integer> {
 	 * @return a Collection of matching {@link Owner}s (or an empty Collection if none
 	 * found)
 	 */
-	@Query("SELECT DISTINCT owner FROM Owner owner left join fetch owner.pets WHERE owner.lastName LIKE :lastName%")
+
+	@Query("SELECT DISTINCT owner FROM Owner owner left join  owner.pets WHERE owner.lastName LIKE :lastName% ")
 	@Transactional(readOnly = true)
-	Collection<Owner> findByLastName(@Param("lastName") String lastName);
+	Page<Owner> findByLastName(@Param("lastName") String lastName, Pageable pageable);
 
 	/**
 	 * Retrieve an {@link Owner} from the data store by id.
@@ -61,4 +62,11 @@ public interface OwnerRepository extends Repository<Owner, Integer> {
 	 */
 	void save(Owner owner);
 
+	/**
+	 * Returnes all the owners from data store
+	 **/
+	@Query("SELECT owner FROM Owner owner")
+	@Transactional(readOnly = true)
+	Page<Owner> findAll(Pageable pageable);
+
 }

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

@@ -15,12 +15,12 @@
  */
 package org.springframework.samples.petclinic.owner;
 
-import java.util.List;
-
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.Repository;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.List;
+
 /**
  * Repository class for <code>Pet</code> domain objects All method names are compliant
  * with Spring Data naming conventions so this interface can easily be extended for Spring

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

@@ -15,11 +15,11 @@
  */
 package org.springframework.samples.petclinic.owner;
 
+import org.springframework.samples.petclinic.model.NamedEntity;
+
 import javax.persistence.Entity;
 import javax.persistence.Table;
 
-import org.springframework.samples.petclinic.model.NamedEntity;
-
 /**
  * @author Juergen Hoeller Can be Cat, Dog, Hamster...
  */

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

@@ -15,14 +15,14 @@
  */
 package org.springframework.samples.petclinic.owner;
 
-import java.text.ParseException;
-import java.util.Collection;
-import java.util.Locale;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.format.Formatter;
 import org.springframework.stereotype.Component;
 
+import java.text.ParseException;
+import java.util.Collection;
+import java.util.Locale;
+
 /**
  * Instructs Spring MVC on how to parse and print elements of type 'PetType'. Starting
  * from Spring 3.0, Formatters have come as an improvement in comparison to legacy

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

@@ -15,20 +15,15 @@
  */
 package org.springframework.samples.petclinic.owner;
 
-import java.util.Map;
-
-import javax.validation.Valid;
-
 import org.springframework.samples.petclinic.visit.Visit;
 import org.springframework.samples.petclinic.visit.VisitRepository;
 import org.springframework.stereotype.Controller;
 import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.WebDataBinder;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.InitBinder;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.Map;
 
 /**
  * @author Juergen Hoeller

src/main/java/org/springframework/samples/petclinic/system/CacheConfiguration.java

@@ -16,13 +16,13 @@
 
 package org.springframework.samples.petclinic.system;
 
-import javax.cache.configuration.MutableConfiguration;
-
 import org.springframework.boot.autoconfigure.cache.JCacheManagerCustomizer;
 import org.springframework.cache.annotation.EnableCaching;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import javax.cache.configuration.MutableConfiguration;
+
 /**
  * Cache configuration intended for caches providing the JCache API. This configuration
  * creates the used cache for the application and enables statistics that become

src/main/java/org/springframework/samples/petclinic/vet/Specialty.java

@@ -15,12 +15,11 @@
  */
 package org.springframework.samples.petclinic.vet;
 
-import java.io.Serializable;
+import org.springframework.samples.petclinic.model.NamedEntity;
 
 import javax.persistence.Entity;
 import javax.persistence.Table;
-
-import org.springframework.samples.petclinic.model.NamedEntity;
+import java.io.Serializable;
 
 /**
  * Models a {@link Vet Vet's} specialty (for example, dentistry).

src/main/java/org/springframework/samples/petclinic/vet/Vet.java

@@ -15,24 +15,14 @@
  */
 package org.springframework.samples.petclinic.vet;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-import javax.persistence.Entity;
-import javax.persistence.FetchType;
-import javax.persistence.JoinColumn;
-import javax.persistence.JoinTable;
-import javax.persistence.ManyToMany;
-import javax.persistence.Table;
-import javax.xml.bind.annotation.XmlElement;
-
 import org.springframework.beans.support.MutableSortDefinition;
 import org.springframework.beans.support.PropertyComparator;
 import org.springframework.samples.petclinic.model.Person;
 
+import javax.persistence.*;
+import javax.xml.bind.annotation.XmlElement;
+import java.util.*;
+
 /**
  * Simple JavaBean domain object representing a veterinarian.
  *

src/main/java/org/springframework/samples/petclinic/vet/VetController.java

@@ -15,11 +15,17 @@
  */
 package org.springframework.samples.petclinic.vet;
 
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
 
-import java.util.Map;
+import java.util.List;
 
 /**
  * @author Juergen Hoeller
@@ -37,15 +43,31 @@ class VetController {
 	}
 
 	@GetMapping("/vets.html")
-	public String showVetList(Map<String, Object> model) {
+	public String showVetList(@RequestParam(defaultValue = "1") int page, Model model) {
 		// Here we are returning an object of type 'Vets' rather than a collection of Vet
 		// objects so it is simpler for Object-Xml mapping
 		Vets vets = new Vets();
-		vets.getVetList().addAll(this.vets.findAll());
-		model.put("vets", vets);
+		Page<Vet> paginated = findPaginated(page);
+		vets.getVetList().addAll(paginated.toList());
+		return addPaginationModel(page, paginated, model);
+
+	}
+
+	private String addPaginationModel(int page, Page<Vet> paginated, Model model) {
+		List<Vet> listVets = paginated.getContent();
+		model.addAttribute("currentPage", page);
+		model.addAttribute("totalPages", paginated.getTotalPages());
+		model.addAttribute("totalItems", paginated.getTotalElements());
+		model.addAttribute("listVets", listVets);
 		return "vets/vetList";
 	}
 
+	private Page<Vet> findPaginated(int page) {
+		int pageSize = 5;
+		Pageable pageable = PageRequest.of(page - 1, pageSize);
+		return vets.findAll(pageable);
+	}
+
 	@GetMapping({ "/vets" })
 	public @ResponseBody Vets showResourcesVetList() {
 		// Here we are returning an object of type 'Vets' rather than a collection of Vet

src/main/java/org/springframework/samples/petclinic/vet/VetRepository.java

@@ -15,13 +15,15 @@
  */
 package org.springframework.samples.petclinic.vet;
 
-import java.util.Collection;
-
 import org.springframework.cache.annotation.Cacheable;
 import org.springframework.dao.DataAccessException;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.repository.Repository;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.Collection;
+
 /**
  * Repository class for <code>Vet</code> domain objects All method names are compliant
  * with Spring Data naming conventions so this interface can easily be extended for Spring
@@ -43,4 +45,16 @@ public interface VetRepository extends Repository<Vet, Integer> {
 	@Cacheable("vets")
 	Collection<Vet> findAll() throws DataAccessException;
 
+	/**
+	 * Retrieve all <code>Vet</code>s from data store in Pages
+	 * @param pageable
+	 * @return
+	 * @throws DataAccessException
+	 */
+	@Transactional(readOnly = true)
+	@Cacheable("vets")
+	Page<Vet> findAll(Pageable pageable) throws DataAccessException;
+
+	;
+
 }

src/main/java/org/springframework/samples/petclinic/vet/Vets.java

@@ -15,11 +15,10 @@
  */
 package org.springframework.samples.petclinic.vet;
 
-import java.util.ArrayList;
-import java.util.List;
-
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlRootElement;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Simple domain object representing a list of veterinarians. Mostly here to be used for

src/main/java/org/springframework/samples/petclinic/visit/Visit.java

@@ -15,15 +15,14 @@
  */
 package org.springframework.samples.petclinic.visit;
 
-import java.time.LocalDate;
+import org.springframework.format.annotation.DateTimeFormat;
+import org.springframework.samples.petclinic.model.BaseEntity;
 
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.Table;
 import javax.validation.constraints.NotEmpty;
-
-import org.springframework.format.annotation.DateTimeFormat;
-import org.springframework.samples.petclinic.model.BaseEntity;
+import java.time.LocalDate;
 
 /**
  * Simple JavaBean domain object representing a visit.

src/main/java/org/springframework/samples/petclinic/visit/VisitRepository.java

@@ -15,12 +15,12 @@
  */
 package org.springframework.samples.petclinic.visit;
 
-import java.util.List;
-
 import org.springframework.dao.DataAccessException;
 import org.springframework.data.repository.Repository;
 import org.springframework.samples.petclinic.model.BaseEntity;
 
+import java.util.List;
+
 /**
  * Repository class for <code>Visit</code> domain objects All method names are compliant
  * with Spring Data naming conventions so this interface can easily be extended for Spring

src/main/resources/templates/owners/ownersList.html

@@ -2,32 +2,61 @@
 
 <html xmlns:th="https://www.thymeleaf.org" th:replace="~{fragments/layout :: layout (~{::body},'owners')}">
 
-  <body>
+<body>
 
-    <h2>Owners</h2>
+<h2>Owners</h2>
 
-    <table id="owners" class="table table-striped">
-        <thead>
-        <tr>
-            <th style="width: 150px;">Name</th>
-            <th style="width: 200px;">Address</th>
-            <th>City</th>
-            <th style="width: 120px">Telephone</th>
-            <th>Pets</th>
-        </tr>
-        </thead>
-        <tbody>
-          <tr th:each="owner : ${selections}">
-              <td>
-                  <a th:href="@{/owners/__${owner.id}__}" th:text="${owner.firstName + ' ' + owner.lastName}"/></a>
-              </td>
-              <td th:text="${owner.address}"/>
-              <td th:text="${owner.city}"/>
-              <td th:text="${owner.telephone}"/>
-              <td><span th:text="${#strings.listJoin(owner.pets, ', ')}"/></td>
-          </tr>
-        </tbody>
-    </table>
-
-  </body>
+<table id="owners" class="table table-striped">
+  <thead>
+  <tr>
+    <th style="width: 150px;">Name</th>
+    <th style="width: 200px;">Address</th>
+    <th>City</th>
+    <th style="width: 120px">Telephone</th>
+    <th>Pets</th>
+  </tr>
+  </thead>
+  <tbody>
+  <tr th:each="owner : ${listOwners}">
+    <td>
+      <a th:href="@{/owners/__${owner.id}__}" th:text="${owner.firstName + ' ' + owner.lastName}"/></a>
+    </td>
+    <td th:text="${owner.address}"/>
+    <td th:text="${owner.city}"/>
+    <td th:text="${owner.telephone}"/>
+    <td><span th:text="${#strings.listJoin(owner.pets, ', ')}"/></td>
+  </tr>
+  </tbody>
+</table>
+<div th:if="${totalPages > 1}">
+  <span>Pages:</span>
+  <span>[</span>
+  <span th:each="i: ${#numbers.sequence(1, totalPages)}">
+      <a th:if="${currentPage != i}" th:href="@{'/owners/' + ${i}}">[[${i}]]</a>
+      <span th:unless="${currentPage != i}">[[${i}]]</span>
+    </span>
+  <span>]&nbsp;</span>
+  <span>
+      <a th:if="${currentPage > 1}" th:href="@{'/owners/?page=1'}" title="First"
+         class="glyphicon glyphicon-backward"></a>
+      <span th:unless="${currentPage > 1}" title="First" class="glyphicon glyphicon-backward"></span>
+    </span>
+  <span>
+      <a th:if="${currentPage > 1}" th:href="@{'/owners/?page=' + ${currentPage - 1}}" title="Previous"
+         class="glyphicon glyphicon-triangle-left"></a>
+      <span th:unless="${currentPage > 1}" title="Previous" class="glyphicon glyphicon-triangle-left"></span>
+    </span>
+  <span>
+      <a th:if="${currentPage < totalPages}" th:href="@{'/owners/?page=' + ${currentPage + 1}}" title="Next"
+         class="glyphicon glyphicon-triangle-right"></a>
+      <span th:unless="${currentPage < totalPages}" title="Next" class="glyphicon glyphicon-triangle-right"></span>
+    </span>
+  <span>
+      <a th:if="${currentPage < totalPages}" th:href="@{'/owners/?page=' + ${totalPages}}" title="Last"
+         class="glyphicon glyphicon-forward"></a>
+      <span th:unless="${currentPage < totalPages}" title="Last" class="glyphicon glyphicon-forward"></span>
+    </span>
+</div>
+</body>
 </html>
+

src/main/resources/templates/vets/vetList.html

@@ -1,27 +1,57 @@
 <!DOCTYPE html>
 
 <html xmlns:th="https://www.thymeleaf.org"
-  th:replace="~{fragments/layout :: layout (~{::body},'vets')}">
+      th:replace="~{fragments/layout :: layout (~{::body},'vets')}">
 
 <body>
 
-  <h2>Veterinarians</h2>
+<h2>Veterinarians</h2>
 
-  <table id="vets" class="table table-striped">
-    <thead>
-      <tr>
-        <th>Name</th>
-        <th>Specialties</th>
-      </tr>
-    </thead>
-    <tbody>
-      <tr th:each="vet : ${vets.vetList}">
-        <td th:text="${vet.firstName + ' ' + vet.lastName}"></td>
-        <td><span th:each="specialty : ${vet.specialties}"
-          th:text="${specialty.name + ' '}" /> <span
-          th:if="${vet.nrOfSpecialties == 0}">none</span></td>
-      </tr>
-    </tbody>
-  </table>
+<table id="vets" class="table table-striped">
+  <thead>
+  <tr>
+    <th>Name</th>
+    <th>Specialties</th>
+  </tr>
+  </thead>
+  <tbody>
+  <tr th:each="vet : ${listVets}">
+    <td th:text="${vet.firstName + ' ' + vet.lastName}"></td>
+    <td><span th:each="specialty : ${vet.specialties}"
+              th:text="${specialty.name + ' '}"/> <span
+      th:if="${vet.nrOfSpecialties == 0}">none</span></td>
+  </tr>
+  </tbody>
+</table>
+
+<div th:if="${totalPages > 1}">
+  <span>Pages:</span>
+  <span>[</span>
+  <span th:each="i: ${#numbers.sequence(1, totalPages)}">
+      <a th:if="${currentPage != i}" th:href="@{'/vets/' + ${i}}">[[${i}]]</a>
+      <span th:unless="${currentPage != i}">[[${i}]]</span>
+    </span>
+  <span>]&nbsp;</span>
+  <span>
+      <a th:if="${currentPage > 1}" th:href="@{'/vets.html/?page=1'}" title="First"
+         class="glyphicon glyphicon-backward"></a>
+      <span th:unless="${currentPage > 1}" title="First" class="glyphicon glyphicon-backward"></span>
+    </span>
+  <span>
+      <a th:if="${currentPage > 1}" th:href="@{'/vets.html/?page=' + ${currentPage - 1}}" title="Previous"
+         class="glyphicon glyphicon-triangle-left"></a>
+      <span th:unless="${currentPage > 1}" title="Previous" class="glyphicon glyphicon-triangle-left"></span>
+    </span>
+  <span>
+      <a th:if="${currentPage < totalPages}" th:href="@{'/vets.html/?page=' + ${currentPage + 1}}" title="Next"
+         class="glyphicon glyphicon-triangle-right"></a>
+      <span th:unless="${currentPage < totalPages}" title="Next" class="glyphicon glyphicon-triangle-right"></span>
+    </span>
+  <span>
+      <a th:if="${currentPage < totalPages}" th:href="@{'/vets.html/?page=' + ${totalPages}}" title="Last"
+         class="glyphicon glyphicon-forward"></a>
+      <span th:unless="${currentPage < totalPages}" title="Last" class="glyphicon glyphicon-forward"></span>
+    </span>
+</div>
 </body>
 </html>

src/test/java/org/springframework/samples/petclinic/model/ValidatorTests.java

@@ -16,16 +16,15 @@
 
 package org.springframework.samples.petclinic.model;
 
-import java.util.Locale;
-import java.util.Set;
-
-import javax.validation.ConstraintViolation;
-import javax.validation.Validator;
-
 import org.junit.jupiter.api.Test;
 import org.springframework.context.i18n.LocaleContextHolder;
 import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean;
 
+import javax.validation.ConstraintViolation;
+import javax.validation.Validator;
+import java.util.Locale;
+import java.util.Set;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**

src/test/java/org/springframework/samples/petclinic/owner/OwnerControllerTests.java

@@ -16,32 +16,34 @@
 
 package org.springframework.samples.petclinic.owner;
 
-import java.time.LocalDate;
-import java.util.Collections;
-import java.util.List;
-
 import org.assertj.core.util.Lists;
 import org.hamcrest.BaseMatcher;
 import org.hamcrest.Description;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
 import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageImpl;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
 import org.springframework.samples.petclinic.visit.Visit;
 import org.springframework.samples.petclinic.visit.VisitRepository;
 import org.springframework.test.web.servlet.MockMvc;
 
-import static org.hamcrest.Matchers.empty;
-import static org.hamcrest.Matchers.hasProperty;
-import static org.hamcrest.Matchers.is;
-import static org.hamcrest.Matchers.not;
+import java.time.LocalDate;
+import java.util.Collections;
+import java.util.List;
+
+import static org.hamcrest.Matchers.*;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.BDDMockito.given;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
 /**
  * Test class for {@link OwnerController}
@@ -81,10 +83,17 @@ class OwnerControllerTests {
 		max.setName("Max");
 		max.setBirthDate(LocalDate.now());
 		george.setPetsInternal(Collections.singleton(max));
+
+		given(this.owners.findByLastName(eq("Franklin"), any(Pageable.class)))
+				.willReturn(new PageImpl<Owner>(Lists.newArrayList(george)));
+
+		given(this.owners.findAll(any(Pageable.class))).willReturn(new PageImpl<Owner>(Lists.newArrayList(george)));
+
 		given(this.owners.findById(TEST_OWNER_ID)).willReturn(george);
 		Visit visit = new Visit();
 		visit.setDate(LocalDate.now());
 		given(this.visits.findByPetId(max.getId())).willReturn(Collections.singletonList(visit));
+
 	}
 
 	@Test
@@ -118,23 +127,35 @@ class OwnerControllerTests {
 
 	@Test
 	void testProcessFindFormSuccess() throws Exception {
-		given(this.owners.findByLastName("")).willReturn(Lists.newArrayList(george, new Owner()));
-		mockMvc.perform(get("/owners")).andExpect(status().isOk()).andExpect(view().name("owners/ownersList"));
+		Page<Owner> tasks = Mockito.mock(Page.class);
+		Mockito.when(this.owners.findByLastName(anyString(), org.mockito.Matchers.isA(Pageable.class)))
+				.thenReturn(tasks);
+		mockMvc.perform(get("/owners?page=1")).andExpect(status().isOk()).andExpect(view().name("owners/ownersList"));
 	}
 
 	@Test
 	void testProcessFindFormByLastName() throws Exception {
-		given(this.owners.findByLastName(george.getLastName())).willReturn(Lists.newArrayList(george));
-		mockMvc.perform(get("/owners").param("lastName", "Franklin")).andExpect(status().is3xxRedirection())
+
+		Page<Owner> tasks = new PageImpl<Owner>(Lists.newArrayList(george));
+		String lastName = george.getLastName();
+		Mockito.when(this.owners.findByLastName(eq("Franklin"), any(Pageable.class))).thenReturn(tasks);
+		mockMvc.perform(get("/owners?page=1").param("lastName", "Franklin")).andExpect(status().is3xxRedirection())
 				.andExpect(view().name("redirect:/owners/" + TEST_OWNER_ID));
 	}
 
 	@Test
 	void testProcessFindFormNoOwnersFound() throws Exception {
-		mockMvc.perform(get("/owners").param("lastName", "Unknown Surname")).andExpect(status().isOk())
+		int pageNumber = 0;
+		int pageSize = 1, size = 0;
+		Pageable pageable = PageRequest.of(pageNumber, pageSize);
+		Page<Owner> tasks = new PageImpl<Owner>(Lists.newArrayList());
+		Mockito.when(this.owners.findByLastName(eq("Unknown Surname"), org.mockito.Matchers.isA(Pageable.class)))
+				.thenReturn(tasks);
+		mockMvc.perform(get("/owners?page=1").param("lastName", "Unknown Surname")).andExpect(status().isOk())
 				.andExpect(model().attributeHasFieldErrors("owner", "lastName"))
 				.andExpect(model().attributeHasFieldErrorCode("owner", "lastName", "notFound"))
 				.andExpect(view().name("owners/findOwners"));
+
 	}
 
 	@Test

src/test/java/org/springframework/samples/petclinic/owner/PetControllerTests.java

@@ -16,13 +16,6 @@
 
 package org.springframework.samples.petclinic.owner;
 
-import static org.mockito.BDDMockito.given;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
-
 import org.assertj.core.util.Lists;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -33,6 +26,11 @@ import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.FilterType;
 import org.springframework.test.web.servlet.MockMvc;
 
+import static org.mockito.BDDMockito.given;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
 /**
  * Test class for the {@link PetController}
  *

src/test/java/org/springframework/samples/petclinic/owner/PetTypeFormatterTests.java

@@ -16,12 +16,6 @@
 
 package org.springframework.samples.petclinic.owner;
 
-import java.text.ParseException;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Locale;
-
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -29,6 +23,12 @@ import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
 
+import java.text.ParseException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Locale;
+
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.BDDMockito.given;
 

src/test/java/org/springframework/samples/petclinic/owner/VisitControllerTests.java

@@ -16,13 +16,6 @@
 
 package org.springframework.samples.petclinic.owner;
 
-import static org.mockito.BDDMockito.given;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
-
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -31,6 +24,11 @@ import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.samples.petclinic.visit.VisitRepository;
 import org.springframework.test.web.servlet.MockMvc;
 
+import static org.mockito.BDDMockito.given;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
 /**
  * Test class for {@link VisitController}
  *

src/test/java/org/springframework/samples/petclinic/service/ClinicServiceTests.java

@@ -16,20 +16,13 @@
 
 package org.springframework.samples.petclinic.service;
 
-import static org.assertj.core.api.Assertions.assertThat;
-
-import java.time.LocalDate;
-import java.util.Collection;
-
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
 import org.springframework.context.annotation.ComponentScan;
-import org.springframework.samples.petclinic.owner.Owner;
-import org.springframework.samples.petclinic.owner.OwnerRepository;
-import org.springframework.samples.petclinic.owner.Pet;
-import org.springframework.samples.petclinic.owner.PetRepository;
-import org.springframework.samples.petclinic.owner.PetType;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.samples.petclinic.owner.*;
 import org.springframework.samples.petclinic.vet.Vet;
 import org.springframework.samples.petclinic.vet.VetRepository;
 import org.springframework.samples.petclinic.visit.Visit;
@@ -37,6 +30,11 @@ import org.springframework.samples.petclinic.visit.VisitRepository;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.time.LocalDate;
+import java.util.Collection;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
 /**
  * Integration test of the Service and the Repository layer.
  * <p>
@@ -48,8 +46,7 @@ import org.springframework.transaction.annotation.Transactional;
  * time between test execution.</li>
  * <li><strong>Dependency Injection</strong> of test fixture instances, meaning that we
  * don't need to perform application context lookups. See the use of
- * {@link Autowired @Autowired} on the <code>{@link
- * ClinicServiceTests#clinicService clinicService}</code> instance variable, which uses
+ * {@link Autowired @Autowired} on the <code> </code> instance variable, which uses
  * autowiring <em>by type</em>.
  * <li><strong>Transaction management</strong>, meaning each test method is executed in
  * its own transaction, which is automatically rolled back by default. Thus, even if tests
@@ -81,12 +78,14 @@ class ClinicServiceTests {
 	@Autowired
 	protected VetRepository vets;
 
+	Pageable pageable;
+
 	@Test
 	void shouldFindOwnersByLastName() {
-		Collection<Owner> owners = this.owners.findByLastName("Davis");
+		Page<Owner> owners = this.owners.findByLastName("Davis", pageable);
 		assertThat(owners).hasSize(2);
 
-		owners = this.owners.findByLastName("Daviss");
+		owners = this.owners.findByLastName("Daviss", pageable);
 		assertThat(owners).isEmpty();
 	}
 
@@ -102,8 +101,8 @@ class ClinicServiceTests {
 	@Test
 	@Transactional
 	void shouldInsertOwner() {
-		Collection<Owner> owners = this.owners.findByLastName("Schultz");
-		int found = owners.size();
+		Page<Owner> owners = this.owners.findByLastName("Schultz", pageable);
+		int found = (int) owners.getTotalElements();
 
 		Owner owner = new Owner();
 		owner.setFirstName("Sam");
@@ -114,8 +113,8 @@ class ClinicServiceTests {
 		this.owners.save(owner);
 		assertThat(owner.getId().longValue()).isNotEqualTo(0);
 
-		owners = this.owners.findByLastName("Schultz");
-		assertThat(owners.size()).isEqualTo(found + 1);
+		owners = this.owners.findByLastName("Schultz", pageable);
+		assertThat(owners.getTotalElements()).isEqualTo(found + 1);
 	}
 
 	@Test

src/test/java/org/springframework/samples/petclinic/service/EntityUtils.java

@@ -16,11 +16,11 @@
 
 package org.springframework.samples.petclinic.service;
 
-import java.util.Collection;
-
 import org.springframework.orm.ObjectRetrievalFailureException;
 import org.springframework.samples.petclinic.model.BaseEntity;
 
+import java.util.Collection;
+
 /**
  * Utility methods for handling entities. Separate from the BaseEntity class mainly
  * because of dependency on the ORM-associated ObjectRetrievalFailureException.

src/test/java/org/springframework/samples/petclinic/system/CrashControllerTests.java

@@ -23,10 +23,7 @@ import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
 import org.springframework.test.web.servlet.MockMvc;
 
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.forwardedUrl;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
 /**
  * Test class for {@link CrashController}

src/test/java/org/springframework/samples/petclinic/vet/VetControllerTests.java

@@ -16,27 +16,28 @@
 
 package org.springframework.samples.petclinic.vet;
 
-import static org.mockito.BDDMockito.given;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
-
 import org.assertj.core.util.Lists;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
 import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.data.domain.PageImpl;
+import org.springframework.data.domain.Pageable;
 import org.springframework.http.MediaType;
 import org.springframework.test.web.servlet.MockMvc;
 import org.springframework.test.web.servlet.ResultActions;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.BDDMockito.given;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
 /**
  * Test class for the {@link VetController}
  */
+
 @WebMvcTest(VetController.class)
 class VetControllerTests {
 
@@ -46,13 +47,17 @@ class VetControllerTests {
 	@MockBean
 	private VetRepository vets;
 
+	private Vet james;
+
+	private Vet helen;
+
 	@BeforeEach
 	void setup() {
-		Vet james = new Vet();
+		james = new Vet();
 		james.setFirstName("James");
 		james.setLastName("Carter");
 		james.setId(1);
-		Vet helen = new Vet();
+		helen = new Vet();
 		helen.setFirstName("Helen");
 		helen.setLastName("Leary");
 		helen.setId(2);
@@ -61,12 +66,16 @@ class VetControllerTests {
 		radiology.setName("radiology");
 		helen.addSpecialty(radiology);
 		given(this.vets.findAll()).willReturn(Lists.newArrayList(james, helen));
+		given(this.vets.findAll(any(Pageable.class))).willReturn(new PageImpl<Vet>(Lists.newArrayList(james, helen)));
+
 	}
 
 	@Test
 	void testShowVetListHtml() throws Exception {
-		mockMvc.perform(get("/vets.html")).andExpect(status().isOk()).andExpect(model().attributeExists("vets"))
-				.andExpect(view().name("vets/vetList"));
+
+		mockMvc.perform(MockMvcRequestBuilders.get("/vets.html?page=1")).andExpect(status().isOk())
+				.andExpect(model().attributeExists("listVets")).andExpect(view().name("vets/vetList"));
+
 	}
 
 	@Test