just cosmetic changes - comments etc...

src/main/java/org/springframework/samples/petclinic/repository/OwnerRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository;
 
 import java.util.Collection;
@@ -5,6 +21,11 @@ import java.util.Collection;
 import org.springframework.dao.DataAccessException;
 import org.springframework.samples.petclinic.model.Owner;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public interface OwnerRepositoryExt extends OwnerRepository {
 	
 	Collection<Owner> findAll() throws DataAccessException;

src/main/java/org/springframework/samples/petclinic/repository/PetRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository;
 
 import java.util.Collection;
@@ -5,6 +21,11 @@ import java.util.Collection;
 import org.springframework.dao.DataAccessException;
 import org.springframework.samples.petclinic.model.Pet;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public interface PetRepositoryExt extends PetRepository {
 	
 	Collection<Pet> findAll() throws DataAccessException;

src/main/java/org/springframework/samples/petclinic/repository/PetTypeRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository;
 
 import java.util.Collection;
@@ -5,6 +21,11 @@ import java.util.Collection;
 import org.springframework.dao.DataAccessException;
 import org.springframework.samples.petclinic.model.PetType;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public interface PetTypeRepositoryExt {
 	
 	PetType findById(int id) throws DataAccessException;

src/main/java/org/springframework/samples/petclinic/repository/SpecialtyRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository;
 
 import java.util.Collection;
@@ -5,6 +21,11 @@ import java.util.Collection;
 import org.springframework.dao.DataAccessException;
 import org.springframework.samples.petclinic.model.Specialty;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public interface SpecialtyRepositoryExt {
 	
 	Specialty findById(int id) throws DataAccessException;

src/main/java/org/springframework/samples/petclinic/repository/VetRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository;
 
 import java.util.Collection;
@@ -5,6 +21,11 @@ import java.util.Collection;
 import org.springframework.dao.DataAccessException;
 import org.springframework.samples.petclinic.model.Vet;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public interface VetRepositoryExt extends VetRepository {
 	
 	Vet findById(int id) throws DataAccessException;

src/main/java/org/springframework/samples/petclinic/repository/VisitRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository;
 
 import java.util.Collection;
@@ -5,6 +21,11 @@ import java.util.Collection;
 import org.springframework.dao.DataAccessException;
 import org.springframework.samples.petclinic.model.Visit;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public interface VisitRepositoryExt extends VisitRepository {
 	
 	Visit findById(int id) throws DataAccessException;

src/main/java/org/springframework/samples/petclinic/repository/jdbc/JdbcSpecialtyRepositoryExtImpl.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.jdbc;
 
 import java.util.Collection;
@@ -19,6 +35,11 @@ import org.springframework.samples.petclinic.model.Specialty;
 import org.springframework.samples.petclinic.repository.SpecialtyRepositoryExt;
 import org.springframework.stereotype.Repository;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @Repository
 @Qualifier("SpecialtyRepositoryExt")
 public class JdbcSpecialtyRepositoryExtImpl implements SpecialtyRepositoryExt {
@@ -77,6 +98,7 @@ public class JdbcSpecialtyRepositoryExtImpl implements SpecialtyRepositoryExt {
 	public void delete(Specialty specialty) throws DataAccessException {
 		Map<String, Object> params = new HashMap<>();
         params.put("id", specialty.getId());
+        this.namedParameterJdbcTemplate.update("DELETE FROM vet_specialties WHERE specialty_id=:id", params);
         this.namedParameterJdbcTemplate.update("DELETE FROM specialties WHERE id=:id", params);
 	}
 

src/main/java/org/springframework/samples/petclinic/repository/jdbc/JdbcVisitRepositoryExtImpl.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.jdbc;
 
 import java.sql.ResultSet;
@@ -20,6 +36,11 @@ import org.springframework.samples.petclinic.model.Visit;
 import org.springframework.samples.petclinic.repository.VisitRepositoryExt;
 import org.springframework.stereotype.Repository;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @Repository
 @Qualifier("VisitRepositoryExt")
 public class JdbcVisitRepositoryExtImpl extends JdbcVisitRepositoryImpl implements VisitRepositoryExt {

src/main/java/org/springframework/samples/petclinic/repository/jpa/JpaOwnerRepositoryExtImpl.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.jpa;
 
 import java.util.Collection;
@@ -12,6 +28,11 @@ import org.springframework.samples.petclinic.model.Owner;
 import org.springframework.samples.petclinic.repository.OwnerRepositoryExt;
 import org.springframework.stereotype.Repository;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @Repository
 @Qualifier("OwnerRepositoryExt")
 public class JpaOwnerRepositoryExtImpl extends JpaOwnerRepositoryImpl implements OwnerRepositoryExt {

src/main/java/org/springframework/samples/petclinic/repository/jpa/JpaVetRepositoryExtImpl.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.jpa;
 
 import java.util.Collection;
@@ -11,6 +27,11 @@ import org.springframework.samples.petclinic.model.Vet;
 import org.springframework.samples.petclinic.repository.VetRepositoryExt;
 import org.springframework.stereotype.Repository;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @Repository
 @Qualifier("VetRepositoryExt")
 public class JpaVetRepositoryExtImpl extends JpaVetRepositoryImpl implements VetRepositoryExt {

src/main/java/org/springframework/samples/petclinic/repository/springdatajpa/PetRepositoryExtOverride.java

@@ -1,7 +1,28 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.springdatajpa;
 
 import org.springframework.samples.petclinic.model.Pet;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public interface PetRepositoryExtOverride {
 	
 	public void delete(Pet pet);

src/main/java/org/springframework/samples/petclinic/repository/springdatajpa/SpringDataOwnerRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.springdatajpa;
 
 import java.util.Collection;
@@ -9,6 +25,11 @@ import org.springframework.data.repository.query.Param;
 import org.springframework.samples.petclinic.model.Owner;
 import org.springframework.samples.petclinic.repository.OwnerRepositoryExt;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @Qualifier("OwnerRepositoryExt")
 public interface SpringDataOwnerRepositoryExt extends OwnerRepositoryExt, Repository<Owner, Integer> {
 	

src/main/java/org/springframework/samples/petclinic/repository/springdatajpa/SpringDataPetRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.springdatajpa;
 
 import java.util.List;
@@ -10,6 +26,11 @@ import org.springframework.samples.petclinic.model.Pet;
 import org.springframework.samples.petclinic.model.PetType;
 import org.springframework.samples.petclinic.repository.PetRepositoryExt;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @Qualifier("PetRepositoryExt")
 public interface SpringDataPetRepositoryExt extends PetRepositoryExt, Repository<Pet, Integer>, PetRepositoryExtOverride {
 	

src/main/java/org/springframework/samples/petclinic/repository/springdatajpa/SpringDataPetRepositoryExtImpl.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.springdatajpa;
 
 import javax.persistence.EntityManager;
@@ -5,6 +21,11 @@ import javax.persistence.PersistenceContext;
 
 import org.springframework.samples.petclinic.model.Pet;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public class SpringDataPetRepositoryExtImpl implements PetRepositoryExtOverride {
 	
 	@PersistenceContext

src/main/java/org/springframework/samples/petclinic/repository/springdatajpa/SpringDataVetRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.springdatajpa;
 
 import org.springframework.beans.factory.annotation.Qualifier;
@@ -5,6 +21,11 @@ import org.springframework.data.repository.Repository;
 import org.springframework.samples.petclinic.model.Vet;
 import org.springframework.samples.petclinic.repository.VetRepositoryExt;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @Qualifier("VetRepositoryExt")
 public interface SpringDataVetRepositoryExt extends VetRepositoryExt, Repository<Vet, Integer> {
 

src/main/java/org/springframework/samples/petclinic/repository/springdatajpa/SpringDataVisitRepositoryExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.springdatajpa;
 
 import org.springframework.beans.factory.annotation.Qualifier;
@@ -5,6 +21,11 @@ import org.springframework.data.repository.Repository;
 import org.springframework.samples.petclinic.model.Visit;
 import org.springframework.samples.petclinic.repository.VisitRepositoryExt;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @Qualifier("VisitRepositoryExt")
 public interface SpringDataVisitRepositoryExt extends VisitRepositoryExt, Repository<Visit, Integer>, VisitRepositoryExtOverride {
 

src/main/java/org/springframework/samples/petclinic/repository/springdatajpa/SpringDataVisitRepositoryExtImpl.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.springdatajpa;
 
 import javax.persistence.EntityManager;
@@ -6,6 +22,11 @@ import javax.persistence.PersistenceContext;
 import org.springframework.dao.DataAccessException;
 import org.springframework.samples.petclinic.model.Visit;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public class SpringDataVisitRepositoryExtImpl implements VisitRepositoryExtOverride {
 	
 	@PersistenceContext

src/main/java/org/springframework/samples/petclinic/repository/springdatajpa/VisitRepositoryExtOverride.java

@@ -1,7 +1,28 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.repository.springdatajpa;
 
 import org.springframework.samples.petclinic.model.Visit;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 public interface VisitRepositoryExtOverride {
 	
 	public void delete(Visit visit);

src/main/java/org/springframework/samples/petclinic/rest/ExceptionControllerAdvice.java

@@ -1,9 +1,30 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.rest;
 
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @ControllerAdvice
 public class ExceptionControllerAdvice {
 

src/main/java/org/springframework/samples/petclinic/rest/OwnerRestController.java

@@ -71,7 +71,8 @@ public class OwnerRestController {
 	
 	@RequestMapping(value = "/{ownerId}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
 	public ResponseEntity<Owner> getOwner(@PathVariable("ownerId") int ownerId){
-		Owner owner = this.clinicService.findOwnerById(ownerId);
+		Owner owner = null;
+		owner = this.clinicService.findOwnerById(ownerId);
 		if(owner == null){
 			return new ResponseEntity<Owner>(HttpStatus.NOT_FOUND);
 		}
@@ -115,7 +116,6 @@ public class OwnerRestController {
 			return new ResponseEntity<Void>(HttpStatus.NOT_FOUND);
 		}
 		this.clinicService.deleteOwner(owner);
-		// TODO  delete error - FK etc.
 		return new ResponseEntity<Void>(HttpStatus.NO_CONTENT);
 	}
 

src/main/java/org/springframework/samples/petclinic/rest/PetTypeRestController.java

@@ -81,7 +81,6 @@ public class PetTypeRestController {
 			return new ResponseEntity<Void>(HttpStatus.NOT_FOUND);
 		}
 		this.clinicService.deletePetType(petType);
-		// TODO  delete error - FK etc.
 		return new ResponseEntity<Void>(HttpStatus.NO_CONTENT);
 	}
 

src/main/java/org/springframework/samples/petclinic/rest/SpecialtyRestController.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.rest;
 
 import java.util.ArrayList;
@@ -21,6 +37,11 @@ import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.util.UriComponentsBuilder;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @RestController
 @RequestMapping("api/specialties")
 public class SpecialtyRestController {
@@ -81,7 +102,6 @@ public class SpecialtyRestController {
 			return new ResponseEntity<Void>(HttpStatus.NOT_FOUND);
 		}
 		this.clinicService.deleteSpecialty(specialty);
-		// TODO  delete error - FK etc.
 		return new ResponseEntity<Void>(HttpStatus.NO_CONTENT);
 	}
 

src/main/java/org/springframework/samples/petclinic/rest/VetRestController.java

@@ -102,7 +102,6 @@ public class VetRestController {
 			return new ResponseEntity<Void>(HttpStatus.NOT_FOUND);
 		}
 		this.clinicService.deleteVet(vet);
-		// TODO  delete error - FK etc.
 		return new ResponseEntity<Void>(HttpStatus.NO_CONTENT);
 	}
 	

src/main/java/org/springframework/samples/petclinic/rest/VisitRestController.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.rest;
 
 import java.util.ArrayList;
@@ -21,6 +37,11 @@ import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.util.UriComponentsBuilder;
 
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
 @RestController
 @RequestMapping("api/visits")
 public class VisitRestController {
@@ -83,7 +104,6 @@ public class VisitRestController {
 			return new ResponseEntity<Void>(HttpStatus.NOT_FOUND);
 		}
 		this.clinicService.deleteVisit(visit);
-		// TODO  delete error - FK etc.
 		return new ResponseEntity<Void>(HttpStatus.NO_CONTENT);
 	}
 

src/main/java/org/springframework/samples/petclinic/service/ClinicServiceExt.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.service;
 
 import java.util.Collection;
@@ -10,37 +26,49 @@ import org.springframework.samples.petclinic.model.Specialty;
 import org.springframework.samples.petclinic.model.Vet;
 import org.springframework.samples.petclinic.model.Visit;
 
+/**
+ * Used as a facade so all (incl.extended) controllers have a single point of entry
+ *
+ * @author Vitaliy Fedoriv
+ */
+
 public interface ClinicServiceExt extends ClinicService {
 
-//  Pet findPetById(int id) throws DataAccessException;
+	//  ----- Pet -----
+	// (in ClinicService)  Pet findPetById(int id) throws DataAccessException;
 	Collection<Pet> findAllPets() throws DataAccessException;
-//  void savePet(Pet pet) throws DataAccessException;
+	// (in ClinicService)  void savePet(Pet pet) throws DataAccessException;
 	void deletePet(Pet pet) throws DataAccessException;
 
-//	Collection<Visit> findVisitsByPetId(int petId);
+	//  ----- Visit -----
+	// (in ClinicService)	Collection<Visit> findVisitsByPetId(int petId);
 	Visit findVisitById(int visitId) throws DataAccessException;
 	Collection<Visit> findAllVisits() throws DataAccessException;
-//  void saveVisit(Visit visit) throws DataAccessException;
+	// (in ClinicService)  void saveVisit(Visit visit) throws DataAccessException;
 	void deleteVisit(Visit visit) throws DataAccessException;
 	
+	//  ----- Vet -----
 	Vet findVetById(int id) throws DataAccessException;
-//  Collection<Vet> findVets() throws DataAccessException;
+	// (in ClinicService)  Collection<Vet> findVets() throws DataAccessException;
 	Collection<Vet> findAllVets() throws DataAccessException;
 	void saveVet(Vet vet) throws DataAccessException;
 	void deleteVet(Vet vet) throws DataAccessException;
-
-//  Owner findOwnerById(int id) throws DataAccessException;
+	
+	//  ----- Owner -----
+	// (in ClinicService)  Owner findOwnerById(int id) throws DataAccessException;
 	Collection<Owner> findAllOwners() throws DataAccessException;
-//  void saveOwner(Owner owner) throws DataAccessException;
+	// (in ClinicService)  void saveOwner(Owner owner) throws DataAccessException;
 	void deleteOwner(Owner owner) throws DataAccessException;
-//  Collection<Owner> findOwnerByLastName(String lastName) throws DataAccessException;
+	// (in ClinicService)  Collection<Owner> findOwnerByLastName(String lastName) throws DataAccessException;
 
+	//  ----- PetType -----
 	PetType findPetTypeById(int petTypeId);
 	Collection<PetType> findAllPetTypes() throws DataAccessException;
-//  Collection<PetType> findPetTypes() throws DataAccessException;
+	// (in ClinicService)  Collection<PetType> findPetTypes() throws DataAccessException;
 	void savePetType(PetType petType) throws DataAccessException;
 	void deletePetType(PetType petType) throws DataAccessException;
 	
+	//  ----- Specialty -----
 	Specialty findSpecialtyById(int specialtyId);
 	Collection<Specialty> findAllSpecialties() throws DataAccessException;
 	void saveSpecialty(Specialty specialty) throws DataAccessException;

src/test/java/org/springframework/samples/petclinic/rest/OwnerRestControllerTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.rest;
 
 import static org.mockito.BDDMockito.given;

src/test/java/org/springframework/samples/petclinic/rest/PetRestControllerTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.rest;
 
 import static org.mockito.BDDMockito.given;

src/test/java/org/springframework/samples/petclinic/rest/PetTypeRestControllerTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.rest;
 
 import static org.mockito.BDDMockito.given;

src/test/java/org/springframework/samples/petclinic/rest/VetRestControllerTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.rest;
 
 import static org.mockito.BDDMockito.given;
@@ -27,12 +43,12 @@ import org.springframework.test.web.servlet.setup.MockMvcBuilders;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 
-
 /**
  * Test class for {@link VetRestController}
  *
  * @author Vitaliy Fedoriv
  */
+
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration({"classpath:spring/mvc-test-config.xml", "classpath:spring/mvc-core-config.xml"})
 @WebAppConfiguration
@@ -94,8 +110,6 @@ public class VetRestControllerTests {
     
     @Test
     public void testGetAllVetsSuccess() throws Exception {
-    	//vets.remove(2); 
-    	//vets.remove(1);
     	given(this.clinicService.findAllVets()).willReturn(vets);
         this.mockMvc.perform(get("/api/vets/")
         	.accept(MediaType.APPLICATION_JSON))

src/test/java/org/springframework/samples/petclinic/rest/VisitRestControllerTests.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.samples.petclinic.rest;
 
 import static org.mockito.BDDMockito.given;
@@ -31,12 +47,12 @@ import org.springframework.test.web.servlet.setup.MockMvcBuilders;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 
-
 /**
  * Test class for {@link VisitRestController}
  *
  * @author Vitaliy Fedoriv
  */
+
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration({"classpath:spring/mvc-test-config.xml", "classpath:spring/mvc-core-config.xml"})
 @WebAppConfiguration