diff --git a/2023-09/spring-13-data-jpa/.gitignore b/2023-09/spring-13-data-jpa/.gitignore
new file mode 100644
index 000000000..e62c33c2a
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/
diff --git a/2023-09/spring-13-data-jpa/demo/.gitignore b/2023-09/spring-13-data-jpa/demo/.gitignore
new file mode 100644
index 000000000..e62c33c2a
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/
diff --git a/2023-09/spring-13-data-jpa/demo/pom.xml b/2023-09/spring-13-data-jpa/demo/pom.xml
new file mode 100644
index 000000000..c6268f5fe
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/pom.xml
@@ -0,0 +1,56 @@
+
+
+ 4.0.0
+
+ ru.otus
+ demo
+ 1.0-SNAPSHOT
+
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 3.1.3
+
+
+
+
+ 17
+ 17
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ com.h2database
+ h2
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/Main.java b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/Main.java
new file mode 100644
index 000000000..bd0562102
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/Main.java
@@ -0,0 +1,75 @@
+package ru.otus.springdata;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.data.domain.Example;
+import org.springframework.data.domain.ExampleMatcher;
+import org.springframework.data.jpa.domain.Specification;
+import ru.otus.springdata.domain.Email;
+import ru.otus.springdata.domain.Person;
+import ru.otus.springdata.repository.EmailRepository;
+import ru.otus.springdata.repository.PersonRepository;
+
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+import static ru.otus.springdata.repository.PersonSpecification.emailAddressLike;
+import static ru.otus.springdata.repository.PersonSpecification.nameLike;
+
+@SpringBootApplication
+public class Main {
+
+ public static void main(String[] args) {
+ ConfigurableApplicationContext context = SpringApplication.run(Main.class);
+
+ PersonRepository personRepository = context.getBean(PersonRepository.class);
+ EmailRepository emailRepository = context.getBean(EmailRepository.class);
+
+ var pushkin = new Person("Александр Сергеевич Пушкин", new Email("alex.pushkin@mail.ru"));
+ var block = new Person("Александр Александрович Блок", new Email("alex.block@mail.ru"));
+ var lermontov = new Person("Михаил Юрьевич Лермонтов", new Email("michail.lermontov@bk.ru"));
+ var gorbachev = new Person("Михаил Сергеевич Горбачев", new Email("gorbachev@mail.ru"));
+ var bulgakov = new Person("Михаил Афанасьевич Булгаков", new Email("bulgakov@mail.ru"));
+
+ emailRepository.save(pushkin.getEmail());
+ emailRepository.save(block.getEmail());
+ emailRepository.save(lermontov.getEmail());
+ emailRepository.save(gorbachev.getEmail());
+ emailRepository.save(bulgakov.getEmail());
+
+ personRepository.save(pushkin);
+ personRepository.save(block);
+ personRepository.save(lermontov);
+ personRepository.save(gorbachev);
+ personRepository.save(bulgakov);
+
+ System.out.println("\n\nИщем почту Горбачева по его id");
+ emailRepository.findByPersonId(gorbachev.getId())
+ .ifPresent(System.out::println);
+
+
+ System.out.println("\n\nС помощью Example ищем всех пёрсонов с именем \"Михаил\" и почтой на \"mail.ru\"");
+ ExampleMatcher ignoringExampleMatcher = ExampleMatcher.matchingAll()
+ .withMatcher("email.address", ExampleMatcher.GenericPropertyMatchers.contains().ignoreCase())
+ .withMatcher("name", ExampleMatcher.GenericPropertyMatchers.contains().ignoreCase())
+ .withIgnorePaths("id", "email.id");
+
+ Example example = Example.of(new Person("Михаил", new Email(0, "mail.ru")), ignoringExampleMatcher);
+
+ System.out.println(personRepository.findAll(example).stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+
+ System.out.println("\n\nС помощью Specification ищем всех пёрсонов с именем \"Александр\" или с почтой на \"bk.ru\"");
+
+ Specification specification = Specification.where(nameLike("Александр"))
+ .or(emailAddressLike("bk.ru"));
+
+ System.out.println(personRepository.findAll(specification).stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+ System.out.println("\n\n");
+
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/domain/Email.java b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/domain/Email.java
new file mode 100644
index 000000000..bf40bee22
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/domain/Email.java
@@ -0,0 +1,26 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Email {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String address;
+
+ public Email(String address) {
+ this.address = address;
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/domain/Person.java b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/domain/Person.java
new file mode 100644
index 000000000..499cd632b
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/domain/Person.java
@@ -0,0 +1,34 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.OneToOne;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Person {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String name;
+
+ @OneToOne(orphanRemoval = true)
+ @JoinColumn(name = "email_id")
+ private Email email;
+
+ public Person(String name, Email email) {
+ this.name = name;
+ this.email = email;
+ }
+
+}
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepository.java b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepository.java
new file mode 100644
index 000000000..a76a43ff2
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepository.java
@@ -0,0 +1,21 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.transaction.annotation.Transactional;
+import ru.otus.springdata.domain.Email;
+
+import java.util.Optional;
+
+public interface EmailRepository extends JpaRepository, EmailRepositoryCustom {
+
+ @Query("select e from Email e where e.address = :address")
+ Optional findByEmailAddress(@Param("address") String email);
+
+ @Modifying
+ @Transactional
+ @Query("update Email e set e.address = :address where e.id = :id")
+ void updateEmailById(@Param("id") long id, @Param("address") String address);
+}
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepositoryCustom.java b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepositoryCustom.java
new file mode 100644
index 000000000..db7112e19
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepositoryCustom.java
@@ -0,0 +1,9 @@
+package ru.otus.springdata.repository;
+
+import ru.otus.springdata.domain.Email;
+
+import java.util.Optional;
+
+public interface EmailRepositoryCustom {
+ Optional findByPersonId(long personId);
+}
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepositoryCustomImpl.java b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepositoryCustomImpl.java
new file mode 100644
index 000000000..18f9ac33b
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/EmailRepositoryCustomImpl.java
@@ -0,0 +1,20 @@
+package ru.otus.springdata.repository;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Repository;
+import ru.otus.springdata.domain.Email;
+import ru.otus.springdata.domain.Person;
+
+import java.util.Optional;
+
+@Repository
+@RequiredArgsConstructor
+public class EmailRepositoryCustomImpl implements EmailRepositoryCustom {
+
+ private final PersonRepository personRepository;
+
+ @Override
+ public Optional findByPersonId(long personId) {
+ return personRepository.findById(personId).map(Person::getEmail);
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/PersonRepository.java b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/PersonRepository.java
new file mode 100644
index 000000000..7bb5c8252
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/PersonRepository.java
@@ -0,0 +1,20 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.jpa.repository.EntityGraph;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.springdata.domain.Person;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface PersonRepository extends JpaRepository, JpaSpecificationExecutor {
+
+ @EntityGraph(attributePaths = "email")
+ List findAll();
+
+ Optional findByName(String s);
+
+ Optional findByEmailAddress(String email);
+}
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/PersonSpecification.java b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/PersonSpecification.java
new file mode 100644
index 000000000..3f8c67b35
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/java/ru/otus/springdata/repository/PersonSpecification.java
@@ -0,0 +1,21 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.jpa.domain.Specification;
+import ru.otus.springdata.domain.Person;
+
+public class PersonSpecification {
+
+ public static Specification nameLike(String name) {
+ if (name == null) {
+ return null;
+ }
+ return (root, query, cb) -> cb.like(root.get("name"), "%" + name + "%");
+ }
+
+ public static Specification emailAddressLike(String address) {
+ if (address == null) {
+ return null;
+ }
+ return (root, query, cb) -> cb.like(root.join("email").get("address"), "%" + address + "%");
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/demo/src/main/resources/application.yml b/2023-09/spring-13-data-jpa/demo/src/main/resources/application.yml
new file mode 100644
index 000000000..bd5b0f984
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/demo/src/main/resources/application.yml
@@ -0,0 +1,20 @@
+spring:
+ datasource:
+ url: jdbc:h2:mem:testdb
+ initialization-mode: never
+
+ jpa:
+ generate-ddl: true
+ hibernate:
+ ddl-auto: create
+
+ properties:
+ hibernate:
+ format_sql: false
+
+ show-sql: true
+
+
+logging:
+ level:
+ ROOT: ERROR
\ No newline at end of file
diff --git a/2023-09/spring-13-data-jpa/exercise/.gitignore b/2023-09/spring-13-data-jpa/exercise/.gitignore
new file mode 100644
index 000000000..e62c33c2a
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/exercise/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/
diff --git a/2023-09/spring-13-data-jpa/exercise/pom.xml b/2023-09/spring-13-data-jpa/exercise/pom.xml
new file mode 100644
index 000000000..a80f5c546
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/exercise/pom.xml
@@ -0,0 +1,51 @@
+
+
+ 4.0.0
+
+ ru.otus
+ exercise
+ 1.0-SNAPSHOT
+
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 3.1.3
+
+
+
+
+ 17
+ 17
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ com.h2database
+ h2
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
diff --git a/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/Main.java b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/Main.java
new file mode 100644
index 000000000..dbbe35980
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/Main.java
@@ -0,0 +1,23 @@
+package ru.otus.springdata;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+
+
+
+@SpringBootApplication
+public class Main {
+
+ public static void main(String[] args) {
+ ConfigurableApplicationContext context = SpringApplication.run(Main.class);
+ //PersonRepository personRepository = context.getBean(PersonRepository.class);
+ //EmailRepository emailRepository = context.getBean(EmailRepository.class);
+
+ // personRepository.save(new Person("Александр Сергеевич Пушкин"));
+ // personRepository.save(new Person("Михаил Юрьевич Лермонтов"));
+ // personRepository.save(new Person("Михаил Сергеевич Горбачев"));
+ }
+
+
+}
diff --git a/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/domain/Email.java b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/domain/Email.java
new file mode 100644
index 000000000..5cb61fa0b
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/domain/Email.java
@@ -0,0 +1,21 @@
+package ru.otus.springdata.domain;
+
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Email {
+
+ private long id;
+
+ private String address;
+
+ public Email(String address) {
+ this.address = address;
+ }
+
+}
diff --git a/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/domain/Person.java b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/domain/Person.java
new file mode 100644
index 000000000..b087adca1
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/domain/Person.java
@@ -0,0 +1,25 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Person {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String name;
+
+ public Person(String name) {
+ this.name = name;
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/repository/EmailRepository.java b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/repository/EmailRepository.java
new file mode 100644
index 000000000..7a446b959
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/repository/EmailRepository.java
@@ -0,0 +1,4 @@
+package ru.otus.springdata.repository;
+
+public interface EmailRepository {
+}
diff --git a/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/repository/PersonRepository.java b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/repository/PersonRepository.java
new file mode 100644
index 000000000..f8e5fc8ad
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/exercise/src/main/java/ru/otus/springdata/repository/PersonRepository.java
@@ -0,0 +1,4 @@
+package ru.otus.springdata.repository;
+
+public interface PersonRepository {
+}
diff --git a/2023-09/spring-13-data-jpa/exercise/src/main/resources/application.yml b/2023-09/spring-13-data-jpa/exercise/src/main/resources/application.yml
new file mode 100644
index 000000000..bd5b0f984
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/exercise/src/main/resources/application.yml
@@ -0,0 +1,20 @@
+spring:
+ datasource:
+ url: jdbc:h2:mem:testdb
+ initialization-mode: never
+
+ jpa:
+ generate-ddl: true
+ hibernate:
+ ddl-auto: create
+
+ properties:
+ hibernate:
+ format_sql: false
+
+ show-sql: true
+
+
+logging:
+ level:
+ ROOT: ERROR
\ No newline at end of file
diff --git a/2023-09/spring-13-data-jpa/pom.xml b/2023-09/spring-13-data-jpa/pom.xml
new file mode 100644
index 000000000..922fc48a7
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/pom.xml
@@ -0,0 +1,21 @@
+
+
+ 4.0.0
+
+ ru.otus
+ spring-11-data-jpa
+ 1.0
+
+ pom
+
+
+ exercise
+ solution-01
+ solution-02
+ solution-03
+ solution-04
+ demo
+
+
diff --git a/2023-09/spring-13-data-jpa/solution-01/.gitignore b/2023-09/spring-13-data-jpa/solution-01/.gitignore
new file mode 100644
index 000000000..e62c33c2a
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-01/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/
diff --git a/2023-09/spring-13-data-jpa/solution-01/pom.xml b/2023-09/spring-13-data-jpa/solution-01/pom.xml
new file mode 100644
index 000000000..675c02716
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-01/pom.xml
@@ -0,0 +1,56 @@
+
+
+ 4.0.0
+
+ ru.otus
+ solution-01
+ 1.0-SNAPSHOT
+
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 3.1.3
+
+
+
+
+ 17
+ 17
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ com.h2database
+ h2
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
diff --git a/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/Main.java b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/Main.java
new file mode 100644
index 000000000..4961485f2
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/Main.java
@@ -0,0 +1,37 @@
+package ru.otus.springdata;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import ru.otus.springdata.domain.Person;
+import ru.otus.springdata.repository.PersonRepository;
+
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+@SpringBootApplication
+public class Main {
+
+ public static void main(String[] args) {
+ ConfigurableApplicationContext context = SpringApplication.run(Main.class);
+
+ PersonRepository personRepository = context.getBean(PersonRepository.class);
+
+
+ personRepository.save(new Person("Александр Сергеевич Пушкин"));
+ personRepository.save(new Person("Михаил Юрьевич Лермонтов"));
+ personRepository.save(new Person("Михаил Сергеевич Горбачев"));
+
+ System.out.println("\n\nИщем всех пёрсонов");
+ System.out.println(personRepository.findAll().stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+ System.out.println("\n\nИщем Пушкина");
+ personRepository.findByName("Александр Сергеевич Пушкин")
+ .ifPresent(System.out::println);
+
+
+ System.out.println("\n\n");
+
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/domain/Email.java b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/domain/Email.java
new file mode 100644
index 000000000..918f052a9
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/domain/Email.java
@@ -0,0 +1,24 @@
+package ru.otus.springdata.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Email {
+
+ private long id;
+
+ private String address;
+
+ public Email(String address) {
+ this.address = address;
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/domain/Person.java b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/domain/Person.java
new file mode 100644
index 000000000..e5905f85d
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/domain/Person.java
@@ -0,0 +1,27 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Person {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String name;
+
+ public Person(String name) {
+ this.name = name;
+ }
+
+}
diff --git a/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/EmailRepository.java b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/EmailRepository.java
new file mode 100644
index 000000000..50b72f9bb
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/EmailRepository.java
@@ -0,0 +1,12 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.otus.springdata.domain.Email;
+
+import java.util.List;
+
+public interface EmailRepository {
+
+ //@Override
+ List findAll();
+}
diff --git a/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/PersonRepository.java b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/PersonRepository.java
new file mode 100644
index 000000000..012ded267
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-01/src/main/java/ru/otus/springdata/repository/PersonRepository.java
@@ -0,0 +1,15 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.springdata.domain.Person;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface PersonRepository extends CrudRepository {
+
+ @Override
+ List findAll();
+
+ Optional findByName(String s);
+}
diff --git a/2023-09/spring-13-data-jpa/solution-01/src/main/resources/application.yml b/2023-09/spring-13-data-jpa/solution-01/src/main/resources/application.yml
new file mode 100644
index 000000000..bd5b0f984
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-01/src/main/resources/application.yml
@@ -0,0 +1,20 @@
+spring:
+ datasource:
+ url: jdbc:h2:mem:testdb
+ initialization-mode: never
+
+ jpa:
+ generate-ddl: true
+ hibernate:
+ ddl-auto: create
+
+ properties:
+ hibernate:
+ format_sql: false
+
+ show-sql: true
+
+
+logging:
+ level:
+ ROOT: ERROR
\ No newline at end of file
diff --git a/2023-09/spring-13-data-jpa/solution-02/.gitignore b/2023-09/spring-13-data-jpa/solution-02/.gitignore
new file mode 100644
index 000000000..e62c33c2a
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-02/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/
diff --git a/2023-09/spring-13-data-jpa/solution-02/pom.xml b/2023-09/spring-13-data-jpa/solution-02/pom.xml
new file mode 100644
index 000000000..e77a8c1af
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-02/pom.xml
@@ -0,0 +1,56 @@
+
+
+ 4.0.0
+
+ ru.otus
+ solution-02
+ 1.0-SNAPSHOT
+
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 3.1.3
+
+
+
+
+ 17
+ 17
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ com.h2database
+ h2
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
diff --git a/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/Main.java b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/Main.java
new file mode 100644
index 000000000..d25a29d2c
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/Main.java
@@ -0,0 +1,53 @@
+package ru.otus.springdata;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import ru.otus.springdata.domain.Email;
+import ru.otus.springdata.domain.Person;
+import ru.otus.springdata.repository.EmailRepository;
+import ru.otus.springdata.repository.PersonRepository;
+
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+@SpringBootApplication
+public class Main {
+
+ public static void main(String[] args) {
+
+ ConfigurableApplicationContext context = SpringApplication.run(Main.class);
+ PersonRepository personRepository = context.getBean(PersonRepository.class);
+ EmailRepository emailRepository = context.getBean(EmailRepository.class);
+
+ var pushkinEmail = new Email("alex.pushkin@mail.ru");
+ var lermontovEmail = new Email("michail.lermontov@mail.ru");
+ var gorbachevEmail = new Email("gorbachev@mail.ru");
+
+ var pushkin = new Person("Александр Сергеевич Пушкин");
+ var lermontov = new Person("Михаил Юрьевич Лермонтов");
+ var gorbachev = new Person("Михаил Сергеевич Горбачев");
+
+ emailRepository.save(pushkinEmail);
+ emailRepository.save(lermontovEmail);
+ emailRepository.save(gorbachevEmail);
+
+ personRepository.save(pushkin);
+ personRepository.save(lermontov);
+ personRepository.save(gorbachev);
+
+ System.out.println("\n\nИщем всех пёрсонов");
+ System.out.println(personRepository.findAll().stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+ System.out.println("\n\nИщем Пушкина");
+ personRepository.findByName("Александр Сергеевич Пушкин")
+ .ifPresent(System.out::println);
+
+ System.out.println("\n\nИщем все почты");
+ System.out.println(emailRepository.findAll().stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+ System.out.println("\n\n");
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/domain/Email.java b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/domain/Email.java
new file mode 100644
index 000000000..bea8c7a51
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/domain/Email.java
@@ -0,0 +1,27 @@
+package ru.otus.springdata.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Email {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String address;
+
+ public Email(String address) {
+ this.address = address;
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/domain/Person.java b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/domain/Person.java
new file mode 100644
index 000000000..e5905f85d
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/domain/Person.java
@@ -0,0 +1,27 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Person {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String name;
+
+ public Person(String name) {
+ this.name = name;
+ }
+
+}
diff --git a/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/repository/EmailRepository.java b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/repository/EmailRepository.java
new file mode 100644
index 000000000..3d5c31529
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/repository/EmailRepository.java
@@ -0,0 +1,13 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.transaction.annotation.Transactional;
+import ru.otus.springdata.domain.Email;
+
+import java.util.Optional;
+
+public interface EmailRepository extends JpaRepository{
+}
diff --git a/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/repository/PersonRepository.java b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/repository/PersonRepository.java
new file mode 100644
index 000000000..cd5bb3f0d
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-02/src/main/java/ru/otus/springdata/repository/PersonRepository.java
@@ -0,0 +1,14 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.springdata.domain.Person;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface PersonRepository extends CrudRepository {
+
+ List findAll();
+
+ Optional findByName(String s);
+}
diff --git a/2023-09/spring-13-data-jpa/solution-02/src/main/resources/application.yml b/2023-09/spring-13-data-jpa/solution-02/src/main/resources/application.yml
new file mode 100644
index 000000000..bd5b0f984
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-02/src/main/resources/application.yml
@@ -0,0 +1,20 @@
+spring:
+ datasource:
+ url: jdbc:h2:mem:testdb
+ initialization-mode: never
+
+ jpa:
+ generate-ddl: true
+ hibernate:
+ ddl-auto: create
+
+ properties:
+ hibernate:
+ format_sql: false
+
+ show-sql: true
+
+
+logging:
+ level:
+ ROOT: ERROR
\ No newline at end of file
diff --git a/2023-09/spring-13-data-jpa/solution-03/.gitignore b/2023-09/spring-13-data-jpa/solution-03/.gitignore
new file mode 100644
index 000000000..e62c33c2a
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-03/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/
diff --git a/2023-09/spring-13-data-jpa/solution-03/pom.xml b/2023-09/spring-13-data-jpa/solution-03/pom.xml
new file mode 100644
index 000000000..85de4f4af
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-03/pom.xml
@@ -0,0 +1,56 @@
+
+
+ 4.0.0
+
+ ru.otus
+ solution-03
+ 1.0-SNAPSHOT
+
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 3.1.3
+
+
+
+
+ 17
+ 17
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ com.h2database
+ h2
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
diff --git a/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/Main.java b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/Main.java
new file mode 100644
index 000000000..a02e3e256
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/Main.java
@@ -0,0 +1,55 @@
+package ru.otus.springdata;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.data.domain.Example;
+import org.springframework.data.domain.ExampleMatcher;
+import ru.otus.springdata.domain.Email;
+import ru.otus.springdata.domain.Person;
+import ru.otus.springdata.repository.EmailRepository;
+import ru.otus.springdata.repository.PersonRepository;
+
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+@SpringBootApplication
+public class Main {
+
+ public static void main(String[] args) {
+ ConfigurableApplicationContext context = SpringApplication.run(Main.class);
+
+ PersonRepository personRepository = context.getBean(PersonRepository.class);
+ EmailRepository emailRepository = context.getBean(EmailRepository.class);
+
+ var pushkin = new Person("Александр Сергеевич Пушкин", new Email("alex.pushkin@mail.ru"));
+ var lermontov = new Person("Михаил Юрьевич Лермонтов", new Email("michail.lermontov@mail.ru"));
+ var gorbachev = new Person("Михаил Сергеевич Горбачев", new Email("gorbachev@mail.ru"));
+
+ emailRepository.save(pushkin.getEmail());
+ emailRepository.save(lermontov.getEmail());
+ emailRepository.save(gorbachev.getEmail());
+
+ personRepository.save(pushkin);
+ personRepository.save(lermontov);
+ personRepository.save(gorbachev);
+
+ System.out.println("\n\nИщем всех пёрсонов");
+ System.out.println(personRepository.findAll().stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+ System.out.println("\n\nИщем Пушкина");
+ personRepository.findByName("Александр Сергеевич Пушкин")
+ .ifPresent(System.out::println);
+
+ System.out.println("\n\nИщем все почты");
+ System.out.println(emailRepository.findAll().stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+ System.out.println("\n\nИщем Пушкина по его почте");
+ personRepository.findByEmailAddress("alex.pushkin@mail.ru")
+ .ifPresent(System.out::println);
+
+ System.out.println("\n\n");
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/domain/Email.java b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/domain/Email.java
new file mode 100644
index 000000000..bf40bee22
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/domain/Email.java
@@ -0,0 +1,26 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Email {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String address;
+
+ public Email(String address) {
+ this.address = address;
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/domain/Person.java b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/domain/Person.java
new file mode 100644
index 000000000..499cd632b
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/domain/Person.java
@@ -0,0 +1,34 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.OneToOne;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Person {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String name;
+
+ @OneToOne(orphanRemoval = true)
+ @JoinColumn(name = "email_id")
+ private Email email;
+
+ public Person(String name, Email email) {
+ this.name = name;
+ this.email = email;
+ }
+
+}
diff --git a/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/repository/EmailRepository.java b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/repository/EmailRepository.java
new file mode 100644
index 000000000..16f1d0c9f
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/repository/EmailRepository.java
@@ -0,0 +1,13 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.transaction.annotation.Transactional;
+import ru.otus.springdata.domain.Email;
+
+import java.util.Optional;
+
+public interface EmailRepository extends JpaRepository {
+}
diff --git a/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/repository/PersonRepository.java b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/repository/PersonRepository.java
new file mode 100644
index 000000000..a6aa8dd30
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-03/src/main/java/ru/otus/springdata/repository/PersonRepository.java
@@ -0,0 +1,18 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.jpa.repository.EntityGraph;
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.springdata.domain.Person;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface PersonRepository extends CrudRepository {
+
+ @EntityGraph(attributePaths = "email")
+ List findAll();
+
+ Optional findByName(String s);
+
+ Optional findByEmailAddress(String email);
+}
diff --git a/2023-09/spring-13-data-jpa/solution-03/src/main/resources/application.yml b/2023-09/spring-13-data-jpa/solution-03/src/main/resources/application.yml
new file mode 100644
index 000000000..bd5b0f984
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-03/src/main/resources/application.yml
@@ -0,0 +1,20 @@
+spring:
+ datasource:
+ url: jdbc:h2:mem:testdb
+ initialization-mode: never
+
+ jpa:
+ generate-ddl: true
+ hibernate:
+ ddl-auto: create
+
+ properties:
+ hibernate:
+ format_sql: false
+
+ show-sql: true
+
+
+logging:
+ level:
+ ROOT: ERROR
\ No newline at end of file
diff --git a/2023-09/spring-13-data-jpa/solution-04/.gitignore b/2023-09/spring-13-data-jpa/solution-04/.gitignore
new file mode 100644
index 000000000..e62c33c2a
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-04/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+*.iml
+
+target/
diff --git a/2023-09/spring-13-data-jpa/solution-04/pom.xml b/2023-09/spring-13-data-jpa/solution-04/pom.xml
new file mode 100644
index 000000000..9274f50e6
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-04/pom.xml
@@ -0,0 +1,56 @@
+
+
+ 4.0.0
+
+ ru.otus
+ solution-04
+ 1.0-SNAPSHOT
+
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 3.1.3
+
+
+
+
+ 17
+ 17
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ com.h2database
+ h2
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
diff --git a/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/Main.java b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/Main.java
new file mode 100644
index 000000000..4574b7837
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/Main.java
@@ -0,0 +1,64 @@
+package ru.otus.springdata;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.data.domain.Example;
+import org.springframework.data.domain.ExampleMatcher;
+import ru.otus.springdata.domain.Email;
+import ru.otus.springdata.domain.Person;
+import ru.otus.springdata.repository.EmailRepository;
+import ru.otus.springdata.repository.PersonRepository;
+
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+@SpringBootApplication
+public class Main {
+
+ public static void main(String[] args) {
+ ConfigurableApplicationContext context = SpringApplication.run(Main.class);
+
+ PersonRepository personRepository = context.getBean(PersonRepository.class);
+ EmailRepository emailRepository = context.getBean(EmailRepository.class);
+
+ var pushkin = new Person("Александр Сергеевич Пушкин", new Email("alex.pushkin@mail.ru"));
+ var lermontov = new Person("Михаил Юрьевич Лермонтов", new Email("michail.lermontov@mail.ru"));
+ var gorbachev = new Person("Михаил Сергеевич Горбачев", new Email("gorbachev@mail.ru"));
+
+ emailRepository.save(pushkin.getEmail());
+ emailRepository.save(lermontov.getEmail());
+ emailRepository.save(gorbachev.getEmail());
+
+ personRepository.save(pushkin);
+ personRepository.save(lermontov);
+ personRepository.save(gorbachev);
+
+ System.out.println("\n\nИщем всех пёрсонов");
+ System.out.println(personRepository.findAll().stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+ System.out.println("\n\nИщем Пушкина");
+ personRepository.findByName("Александр Сергеевич Пушкин")
+ .ifPresent(System.out::println);
+
+ System.out.println("\n\nИщем все почты");
+ System.out.println(emailRepository.findAll().stream().map(Objects::toString)
+ .collect(Collectors.joining("\n")));
+
+ System.out.println("\n\nИщем Пушкина по его почте");
+ personRepository.findByEmailAddress("alex.pushkin@mail.ru")
+ .ifPresent(System.out::println);
+
+ System.out.println("\n\nОбновляем почту Лермонтову");
+ System.out.println("До обновления: " + lermontov.getEmail());
+ emailRepository.updateEmailById(lermontov.getId(), "michail1984@lermontov.ru");
+
+ System.out.println("\n\nИщем почту Лермонтова по новому адресу");
+ emailRepository.findByEmailAddress("michail1984@lermontov.ru")
+ .ifPresent(e -> System.out.println("После обновления: " + e));
+
+ System.out.println("\n\n");
+
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/domain/Email.java b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/domain/Email.java
new file mode 100644
index 000000000..bf40bee22
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/domain/Email.java
@@ -0,0 +1,26 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Email {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String address;
+
+ public Email(String address) {
+ this.address = address;
+ }
+}
diff --git a/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/domain/Person.java b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/domain/Person.java
new file mode 100644
index 000000000..499cd632b
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/domain/Person.java
@@ -0,0 +1,34 @@
+package ru.otus.springdata.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.OneToOne;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Person {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private long id;
+
+ private String name;
+
+ @OneToOne(orphanRemoval = true)
+ @JoinColumn(name = "email_id")
+ private Email email;
+
+ public Person(String name, Email email) {
+ this.name = name;
+ this.email = email;
+ }
+
+}
diff --git a/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/repository/EmailRepository.java b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/repository/EmailRepository.java
new file mode 100644
index 000000000..66b4da801
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/repository/EmailRepository.java
@@ -0,0 +1,21 @@
+package ru.otus.springdata.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.transaction.annotation.Transactional;
+import ru.otus.springdata.domain.Email;
+
+import java.util.Optional;
+
+public interface EmailRepository extends JpaRepository {
+
+ @Query("select e from Email e where e.address = :address")
+ Optional findByEmailAddress(@Param("address") String email);
+
+ @Modifying
+ @Transactional
+ @Query("update Email e set e.address = :address where e.id = :id")
+ void updateEmailById(@Param("id") long id, @Param("address") String address);
+}
diff --git a/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/repository/PersonRepository.java b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/repository/PersonRepository.java
new file mode 100644
index 000000000..64579e9b6
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-04/src/main/java/ru/otus/springdata/repository/PersonRepository.java
@@ -0,0 +1,20 @@
+package ru.otus.springdata.repository;
+
+import jakarta.annotation.Nonnull;
+import org.springframework.data.jpa.repository.EntityGraph;
+import org.springframework.data.repository.CrudRepository;
+import ru.otus.springdata.domain.Person;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface PersonRepository extends CrudRepository {
+
+ @Nonnull
+ @EntityGraph(attributePaths = "email")
+ List findAll();
+
+ Optional findByName(String s);
+
+ Optional findByEmailAddress(String email);
+}
diff --git a/2023-09/spring-13-data-jpa/solution-04/src/main/resources/application.yml b/2023-09/spring-13-data-jpa/solution-04/src/main/resources/application.yml
new file mode 100644
index 000000000..bd5b0f984
--- /dev/null
+++ b/2023-09/spring-13-data-jpa/solution-04/src/main/resources/application.yml
@@ -0,0 +1,20 @@
+spring:
+ datasource:
+ url: jdbc:h2:mem:testdb
+ initialization-mode: never
+
+ jpa:
+ generate-ddl: true
+ hibernate:
+ ddl-auto: create
+
+ properties:
+ hibernate:
+ format_sql: false
+
+ show-sql: true
+
+
+logging:
+ level:
+ ROOT: ERROR
\ No newline at end of file