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KirillKurdyukovKirillKurdyukov
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Merge pull request #20 from KirillKurdyukov/spring_data_jpa_example
Spring Data JPA Example
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‎jdbc/pom.xml

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</dependency>
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</dependencies>
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</dependencyManagement>
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<profiles>
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<profile>
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<id>jdk17-examples</id>
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<activation>
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<jdk>[17</jdk>
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</activation>
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<modules>
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<module>spring-data-jpa</module>
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</modules>
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</profile>
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</profiles>
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</project>

‎jdbc/spring-data-jpa/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>tech.ydb.jdbc.examples</groupId>
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<artifactId>ydb-jdbc-examples</artifactId>
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<version>1.1.0-SNAPSHOT</version>
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</parent>
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<artifactId>spring-data-jpa</artifactId>
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<name>Spring Data JPA Example</name>
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<description>Basic example for SpringBoot3 and Hibernate 6</description>
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<properties>
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<maven.compiler.release>17</maven.compiler.release>
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<kotlin.version>1.9.22</kotlin.version>
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<hibernate.ydb.dialect.version>0.9.1</hibernate.ydb.dialect.version>
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<ydb.jdbc.driver.version>2.0.5</ydb.jdbc.driver.version>
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<spring.boot.version>3.2.1</spring.boot.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-jpa</artifactId>
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<version>${spring.boot.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.data</groupId>
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<artifactId>spring-data-commons</artifactId>
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<version>${spring.boot.version}</version>
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</dependency>
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<dependency>
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<groupId>org.jetbrains.kotlin</groupId>
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<artifactId>kotlin-reflect</artifactId>
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<version>${kotlin.version}</version>
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</dependency>
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<dependency>
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<groupId>org.jetbrains.kotlin</groupId>
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<artifactId>kotlin-stdlib</artifactId>
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<version>${kotlin.version}</version>
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</dependency>
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<dependency>
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<groupId>tech.ydb.dialects</groupId>
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<artifactId>hibernate-ydb-dialect</artifactId>
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<version>${hibernate.ydb.dialect.version}</version>
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</dependency>
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<dependency>
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<groupId>tech.ydb.jdbc</groupId>
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<artifactId>ydb-jdbc-driver</artifactId>
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<version>${ydb.jdbc.driver.version}</version>
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</dependency>
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<dependency>
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<groupId>com.github.javafaker</groupId>
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<artifactId>javafaker</artifactId>
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<version>1.0.2</version>
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</dependency>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-slf4j-impl</artifactId>
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</dependency>
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<dependency>
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<groupId>org.jetbrains.kotlinx</groupId>
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<artifactId>kotlinx-coroutines-core</artifactId>
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<version>1.7.3</version>
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</dependency>
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<dependency>
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<groupId>org.postgresql</groupId>
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<artifactId>postgresql</artifactId>
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<version>42.7.1</version>
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</dependency>
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<dependency>
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<groupId>org.testcontainers</groupId>
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<artifactId>postgresql</artifactId>
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<version>1.19.1</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>tech.ydb.test</groupId>
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<artifactId>ydb-junit5-support</artifactId>
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<scope>test</scope>
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<exclusions>
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<exclusion>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-api</artifactId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<version>${spring.boot.version}</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
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<testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-surefire-plugin</artifactId>
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<configuration>
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<environmentVariables>
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<TESTCONTAINERS_REUSE_ENABLE>true</TESTCONTAINERS_REUSE_ENABLE>
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</environmentVariables>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<version>${spring.boot.version}</version>
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</plugin>
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<plugin>
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<groupId>org.jetbrains.kotlin</groupId>
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<artifactId>kotlin-maven-plugin</artifactId>
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<version>${kotlin.version}</version>
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<executions>
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<execution>
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<id>compile</id>
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<phase>compile</phase>
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<goals>
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<goal>compile</goal>
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</goals>
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</execution>
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<execution>
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<id>test-compile</id>
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<goals>
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<goal>test-compile</goal>
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</goals>
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</execution>
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</executions>
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<configuration>
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<args>
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<arg>-Xjsr305=strict</arg>
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</args>
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<compilerPlugins>
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<plugin>spring</plugin>
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<plugin>jpa</plugin>
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</compilerPlugins>
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</configuration>
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<dependencies>
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<dependency>
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<groupId>org.jetbrains.kotlin</groupId>
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<artifactId>kotlin-maven-allopen</artifactId>
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<version>${kotlin.version}</version>
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</dependency>
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<dependency>
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<groupId>org.jetbrains.kotlin</groupId>
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<artifactId>kotlin-maven-noarg</artifactId>
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<version>${kotlin.version}</version>
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</dependency>
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</dependencies>
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</plugin>
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</plugins>
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</build>
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</project>

‎jdbc/spring-data-jpa/src/main/kotlin/tech/ydb/jpa/pagination/Author.kt

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package tech.ydb.jpa.pagination
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import jakarta.persistence.Entity
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import jakarta.persistence.Id
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import jakarta.persistence.Table
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@Entity
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@Table(name = "authors")
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class Author {
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@Id
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lateinit var id: String
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lateinit var firstName: String
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lateinit var lastName: String
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}

‎jdbc/spring-data-jpa/src/main/kotlin/tech/ydb/jpa/pagination/Book.kt

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package tech.ydb.jpa.pagination
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import jakarta.persistence.Entity
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import jakarta.persistence.Id
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import jakarta.persistence.ManyToOne
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import jakarta.persistence.Table
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import java.util.*
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@Entity
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@Table(name = "books")
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class Book {
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@Id
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lateinit var id: String
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lateinit var title: String
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lateinit var isbn10: String
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lateinit var publicationDate: Date
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@ManyToOne
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lateinit var author: Author
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}

‎jdbc/spring-data-jpa/src/main/kotlin/tech/ydb/jpa/pagination/BookRepository.kt

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package tech.ydb.jpa.pagination
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import org.springframework.data.domain.*
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import org.springframework.data.repository.ListCrudRepository
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import org.springframework.data.repository.query.Param
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interface BookRepository : ListCrudRepository<Book, String> {
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/**
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* Uses an offset based pagination that first sorts the entries by their [ publication_date][Book.getPublicationDate]
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* and then limits the result by dropping the number of rows specified in the
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* [offset][Pageable.getOffset] clause. To retrieve [Page.getTotalElements] an additional count query
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* is executed.
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*
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* @param title
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* @param pageable
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*/
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fun findByTitleContainsOrderByPublicationDate(@Param("title") title: String, pageable: Pageable): Page<Book>
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/**
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* Uses an offset based slicing that first sorts the entries by their [ publication_date][Book.getPublicationDate] and then limits the result by dropping the number of rows specified in the
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* [offset][Pageable.getOffset] clause.
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*
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* @param title
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* @param pageable
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*/
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fun findBooksByTitleContainsOrderByPublicationDate(title: String, pageable: Pageable): Slice<Book>
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/**
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* Depending on the provided [ScrollPosition] either [ offset][org.springframework.data.domain.OffsetScrollPosition]
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* or [keyset][org.springframework.data.domain.KeysetScrollPosition] scrolling is possible. Scrolling
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* through results requires a stable [org.springframework.data.domain.Sort] which is different from what
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* [Pageable.getSort] offers. The limit is defined via the Top keyword.
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*
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* @param title
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* @param scrollPosition
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*/
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fun findTop2ByTitleContainsOrderByPublicationDate(title: String, scrollPosition: ScrollPosition): Window<Book>
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}

‎jdbc/spring-data-jpa/src/main/kotlin/tech/ydb/jpa/pagination/PagingApplication.kt

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package tech.ydb.jpa.pagination
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import org.springframework.boot.autoconfigure.SpringBootApplication
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@SpringBootApplication
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class PagingApplication

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