Come incrementare automaticamente un ID in una chiave primaria composita in Hibernate?

Come ho detto nel commento, ho usato @IdClass ha funzionato mentre ho provato in hsqldb database in memoria, ma non ha funzionato in mysql .

Tieni presente che sto usando ibernazione 5

Puoi provare con Oracle, non riuscivo a ricordare ma dovrebbe funzionare. Ma si prega di verificare eventuali inconvenienti con l'approccio, se presenti.

pom.xml

<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.techdisqus</groupId>
    <artifactId>spring5-mvc-hibernate-example</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <properties>
        <failOnMissingWebXml>false</failOnMissingWebXml>
        <spring.version>5.0.0.RELEASE</spring.version>
        <hibernate.version>5.2.11.Final</hibernate.version>
        <hibernate.validator>5.4.1.Final</hibernate.validator>
        <c3p0.version>0.9.5.2</c3p0.version>
        <jstl.version>1.2.1</jstl.version>
        <tld.version>1.1.2</tld.version>
        <servlets.version>3.1.0</servlets.version>
        <jsp.version>2.3.1</jsp.version>
        <hsqldb.version>1.8.0.10</hsqldb.version>
    </properties>
    <dependencies>
        <!-- Spring MVC Dependency -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- Spring ORM -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- Hibernate ORM -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernate.version}</version>
        </dependency>

        <!-- Hibernate-C3P0 Integration -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-c3p0</artifactId>
            <version>${hibernate.version}</version>
        </dependency>

        <!-- c3p0 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>${c3p0.version}</version>
        </dependency>

        <!-- Hibernate Validator -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>${hibernate.validator}</version>
        </dependency>

        <!-- JSTL Dependency -->
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>javax.servlet.jsp.jstl-api</artifactId>
            <version>${jstl.version}</version>
        </dependency>

        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>${tld.version}</version>
        </dependency>

        <!-- Servlet Dependency -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>${servlets.version}</version>
            <scope>provided</scope>
        </dependency>

        <!-- JSP Dependency -->
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>${jsp.version}</version>
            <scope>provided</scope>
        </dependency>

        <!-- HSQL Dependency -->
          <dependency>
            <groupId>hsqldb</groupId>
            <artifactId>hsqldb</artifactId>
            <version>${hsqldb.version}</version>
        </dependency>  

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.12</version>
        </dependency>
    </dependencies>

    <build>
        <sourceDirectory>src/main/java</sourceDirectory>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>

            <!-- Embedded Apache Tomcat required for testing war -->
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <path>/</path>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Book.java

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.IdClass;
import javax.persistence.Table;

@Entity(name = "Book")
@Table(name = "book")
@IdClass( PK.class )
public class Book {

    @Id
    @Column(name = "registration_number")
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long registrationNumber;

    @Id
    @Column(name = "publisher_id")
    private Integer publisherId;

    private String title;

    public Long getRegistrationNumber() {
        return registrationNumber;
    }

    public void setRegistrationNumber(Long registrationNumber) {
        this.registrationNumber = registrationNumber;
    }

    public Integer getPublisherId() {
        return publisherId;
    }

    public void setPublisherId(Integer publisherId) {
        this.publisherId = publisherId;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    @Override
    public String toString() {
        return "Book [registrationNumber=" + registrationNumber + ", publisherId=" + publisherId + ", title=" + title
                + "]";
    }
 }

PK.java

import java.io.Serializable;
import java.util.Objects;

public class PK implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = 2371758145387850080L;

    private Long registrationNumber;
    private Integer publisherId;

    public PK(Long registrationNumber, Integer publisherId) {
        this.registrationNumber = registrationNumber;
        this.publisherId = publisherId;
    }


    public PK() {
    }

    @Override
    public boolean equals(Object o) {
        if ( this == o ) {
            return true;
        }
        if ( o == null || getClass() != o.getClass() ) {
            return false;
        }
        PK pk = (PK) o;
        return Objects.equals( registrationNumber, pk.registrationNumber ) &&
                Objects.equals( publisherId, pk.publisherId );
    }

    @Override
    public int hashCode() {
        return Objects.hash( registrationNumber, publisherId );
    }
}

hibernate.cfg.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.archive.autodetection">class,hbm</property>
        <property name="hibernate.dialect">org.hibernate.dialect.HSQLDialect</property>
        <property name="hibernate.show_sql">true</property>
        <property name="hibernate.connection.driver_class">org.hsqldb.jdbcDriver</property>
        <property name="hibernate.connection.username">sa</property>
        <property name="hibernate.connection.password"></property>
        <property name="hibernate.connection.url">jdbc:hsqldb:mem:test</property>
        <property name="hibernate.hbm2ddl.auto">create</property>

        <property name="hibernate.c3p0.min_size">5</property>
        <property name="hibernate.c3p0.max_size">20</property>
        <property name="hibernate.c3p0.acquire_increment">2</property>
        <property name="hibernate.c3p0.acquire_increment">1800</property>
        <property name="hibernate.c3p0.max_statements">150</property>
    </session-factory>
</hibernate-configuration>

HibernateConfig.java

@Configuration
@EnableTransactionManagement
@ComponentScans(value = { @ComponentScan("com.techdisqus")})
public class HibernateConfig {

    @Autowired
    private ApplicationContext context;

    @Bean
    public LocalSessionFactoryBean getSessionFactory() {
        LocalSessionFactoryBean factoryBean = new LocalSessionFactoryBean();
        factoryBean.setConfigLocation(context.getResource("classpath:hibernate.cfg.xml"));
        factoryBean.setAnnotatedClasses(Book.class);
        return factoryBean;
    }

    @Bean
    public HibernateTransactionManager getTransactionManager() {
        HibernateTransactionManager transactionManager = new HibernateTransactionManager();
        transactionManager.setSessionFactory(getSessionFactory().getObject());
        return transactionManager;
    }

}

BookDAOImpl.java

@Repository
public class BookDAOImpl implements BookDAO {

    @Autowired
    private SessionFactory sessionFactory;

    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }




    public void save(Book book) {
        Session session = this.sessionFactory.openSession();
        Transaction tx = session.beginTransaction();
        session.persist(book);
        tx.commit();
        session.close();

    }

}

codice cliente:

public class SpringHibernateMain2 {

    public static void main(String[] args) {

        ApplicationContext appContext = new AnnotationConfigApplicationContext(HibernateConfig.class);

        BookDAO personDAO = appContext.getBean(BookDAO.class);

        Book book = new Book();
        book.setPublisherId(12);
        book.setTitle("t 1");
        //book.setRegistrationNumber(2l);
        personDAO.save(book);

        System.out.println("book::"+book);




        //context.close();

    }

}

dai registri durante l'utilizzo con H:

Quello che segue è l'error Ottengo mentre provo con MySql

Ho provato con risposta accettata nel postInserimento in sospensione non riuscito quando la chiave incorporata contiene la colonna Identity su SQL Server ma senza fortuna.