Я пытаюсь подключиться к базе данных Neo4j. Моя база данных загружена с сайта Neo4j "Cineacts Actors & Movies". Он расположен на C: \ NewMovies.

Вот и мое приложение:

public class App 
{
    private static final String JBOSS_TM_CLASS_NAME = "com.arjuna.ats.jta.TransactionManager";
    public static void main( String[] args )
    {  
TransactionManager tm = getTransactionManager();
        //build the EntityManagerFactory as you would build in in Hibernate Core
      EntityManagerFactory emf = Persistence.createEntityManagerFactory("ogm-jpa-tutorial");
System.out.println( "Hello World!" );
    }

   public static TransactionManager getTransactionManager() {
        try {
            Class<?> tmClass = App.class.getClassLoader().loadClass( JBOSS_TM_CLASS_NAME );
            return (TransactionManager) tmClass.getMethod( "transactionManager" ).invoke( null );
        } catch ( ClassNotFoundException e ) {
            e.printStackTrace();
        } catch ( InvocationTargetException e ) {
            e.printStackTrace();
        } catch ( NoSuchMethodException e ) {
            e.printStackTrace();
        } catch ( IllegalAccessException e ) {
            e.printStackTrace();
        }
        return null;
    }
}

Мой файл сохранения:

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
    version="2.0">

    <persistence-unit name="ogm-jpa-tutorial" transaction-type="JTA">
        <!-- Use Hibernate OGM provider: configuration will be transparent -->
        <provider>org.hibernate.ogm.jpa.HibernateOgmPersistence</provider>
        <class>com.mycompany.hibernateneo.Movie</class>
        <properties>
            <property name="hibernate.ogm.datastore.provider" value="neo4j_embedded" />
            <property name="hibernate.ogm.neo4j.database_path" value="C:/NewMovies" />

            <!-- defines which JTA Transaction we plan to use -->
            <property name="hibernate.transaction.jta.platform"
                      value="org.hibernate.service.jta.platform.internal.JBossStandAloneJtaPlatform"/>
        </properties>
    </persistence-unit>
</persistence>

Мой файл объекта:

 @Entity
    @Table(name = "Movie")
public class Movie {
   @Id
    String id;
    @Basic
    String title;
@Basic
    String description;
@Basic
    private String language;
@Basic
    private String imdbId;
@Basic
    private String tagline;
    @Basic
    private Integer runtime;
    @Basic
    private String homepage;
    @Basic
    private String trailer;
    @Basic
    private String genre;
    @Basic
    private String studio;
    @Basic
    private Integer version;
    @Basic
    private String imageUrl;
    public Movie() {
    }
    public Movie(String id, String title) {
        this.id = id;
        this.title = title;
    }
    public String getId() {
        return id;
    }
    public String getTitle() {
        return title;
    }
    public String getDescription() {
        return description;
    }
    public void setTitle(String title) {
        this.title=title;
    }
    public void setLanguage(String language) {
        this.language = language;
    }
    public void setImdbId(String imdbId) {
        this.imdbId = imdbId;
    }
    public void setTagline(String tagline) {
        this.tagline = tagline;
    }
    public void setDescription(String description) {
        this.description = description;
    }
    public void setRuntime(Integer runtime) {
        this.runtime = runtime;
    }
    public void setHomepage(String homepage) {
        this.homepage = homepage;
    }
    public void setTrailer(String trailer) {
        this.trailer = trailer;
    }
    public void setGenre(String genre) {
        this.genre = genre;
    }
    public void setStudio(String studio) {
        this.studio = studio;
    }
    public void setVersion(Integer version) {
        this.version = version;
    }
    public void setImageUrl(String imageUrl) {
        this.imageUrl = imageUrl;
    }
    public String getLanguage() {
        return language;
    }
    public String getImdbId() {
        return imdbId;
    }
    public String getTagline() {
        return tagline;
    }
    public Integer getRuntime() {
        return runtime;
    }
    public String getHomepage() {
        return homepage;
    }
    public String getTrailer() {
        return trailer;
    }
    public String getGenre() {
        return genre;
    }
    public String getStudio() {
        return studio;
    }
    public Integer getVersion() {
        return version;
    }
    public String getImageUrl() {
        return imageUrl;
    }
    public String getYoutubeId() {
        String trailerUrl = trailer;
        if (trailerUrl==null || !trailerUrl.contains("youtu")) return null;
        String[] parts = trailerUrl.split("[=/]");
        int numberOfParts = parts.length;
        return numberOfParts > 0 ? parts[numberOfParts-1] : null;
    }  
}

И ошибка, которую я получаю:

Исключение в потоке "main" javax.persistence.PersistenceException: [PersistenceUnit: ogm-jpa-tutorial] Невозможно построить EntityManagerFactory в org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory (Ejb3Configuration.java.fhigurationJB в or.ejb3Configuration.java: .buildEntityManagerFactory (Ejb3Configuration.java:890) в org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory (HibernatePersistence.java:57) в org.hibernate.ogm.jpa.HibernateOgmPersistence.annateEntityOgmPersistence.createEntity (java). Persistence.createEntityManagerFactory (Persistence.java:63) в javax.persistence.Persistence.createEntityManagerFactory (Persistence.java:47) в com.mycompany.hibernateneo.App.main (App.java:22) Вызвано: org.hibernate.MappingException : Не удалось получить конструктор для org.hibernate.ogm.persister.SingleTableOgmEntityPersister в org.hibernate.persister.internal.PersisterFactoryImpl.create (PersisterFactoryImpl.java : 185) в org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister (PersisterFactoryImpl.java:135) в org.hibernate.internal.SessionFactoryImpl. (SessionFactoryImpl.java:385) в org.hibernate.cfession.Configuration. .java: 1742) в org.hibernate.ejb.EntityManagerFactoryImpl. (EntityManagerFactoryImpl.java:94) в org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory (Ejb3Configuration.java:905nate). service.spi.ServiceException: невозможно создать запрошенную службу [org.hibernate.ogm.dialect.impl.GridDialectFactory] в org.hibernate.service.internal.AbstractServiceRegistryImpl.createService (AbstractServiceRegistryImpl.java:186) в org.hibernate.hibernate. internal.AbstractServiceRegistryImpl.initializeService (AbstractServiceRegistryImpl.java:150) в org.hibernate.service.internal.AbstractServiceRegistryImpl.getService (AbstractServiceRegistryImpl.java:131) в org.hibernate.og m.datastore.impl.DatastoreServicesInitiator.initiateService (DatastoreServicesInitiator.java:50) в org.hibernate.ogm.datastore.impl.DatastoreServicesInitiator.initiateService (DatastoreServicesInitiator.initiateService (DatastoreServicesInitiator.initiateService (DatastoreServicesInitiator.initiateService) (DatastoreServicesInitiator). SessionFactoryServiceRegistryImpl.java:91) на org.hibernate.service.internal.AbstractServiceRegistryImpl.createService (AbstractServiceRegistryImpl.java:176) на org.hibernate.service.internal.AbstractService.java.service.internal.AbstractService.java.service.internal. .internal.AbstractServiceRegistryImpl.getService (AbstractServiceRegistryImpl.java:131) в org.hibernate.ogm.persister.OgmEntityPersister. (OgmEntityPersister.java:129) в org.hibernate.ogm.persister.SinglentityPersister. sun.reflect.NativeConstructorAccessorImpl.newInstance0 (собственный метод) в sun.reflect.NativeConstruc torAccessorImpl.newInstance (NativeConstructorAccessorImpl.java:57) в sun.reflect.DelegatingConstructorAccessorImpl.newInstance (DelegatingConstructorAccessorImpl.java:45) в java.lang.reflect.Constructor.newiberInstance (Constructor.hina26) в java.lang. .PersisterFactoryImpl.create (PersisterFactoryImpl.java:163) ... еще 11 Вызвано: java.lang.IllegalArgumentException: свойство hibernate.ogm.neo4j.database.path не может быть пустым в org.hibernate.ogm.datastore.neo4j.impl .EmbeddedGraphDatabaseFactory.validate (EmbeddedGraphDatabaseFactory.java:61) в org.hibernate.ogm.datastore.neo4j.impl.EmbeddedGraphDatabaseFactory.initialize (EmbeddedGraphDatabaseFactoryDatabaseDatabase.java:52) в org.g. (Neo4jGraphDatabaseServiceFactoryProvider.java:44) на org.hibernate.ogm.datastore.neo4j.impl.Neo4jDatastoreProvider.configure (Neo4jDatastoreProvider.java:77) на org.servicenate.ogm. pl.OgmSessionFactoryServiceRegistryImpl.configureService (OgmSessionFactoryServiceRegistryImpl.java:69) в org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService (AbstractServiceRegistryImpl.initializeService (AbstractServiceRegistryImpl.initializeService) (AbstractServiceRegistryImpl.initializeService) (AbstractServiceRegistryImpl.initializeService) (AbstractServiceRegistryImpl.initializeService). в org.hibernate.ogm.dialect.impl.GridDialectFactoryInitiator.createDialect (GridDialectFactoryInitiator.java:58) по адресу org.hibernate.ogm.dialect.impl.GridDialectFactoryInitiator.initiateService (GridDialectFactoryInitiator.initiateService (GridDialectFactoryInitiator.initiateService (GridDialectFactoryInitiator. .impl. ) ... еще 26

Пожалуйста, есть идеи?

0
Kula 20 Авг 2014 в 20:51

1 ответ

Лучший ответ

Удалять

   <property name="hibernate.transaction.jta.platform"
                  value="org.hibernate.service.jta.platform.internal.JBossStandAloneJtaPlatform"/>

Из файла persistence.xml. HibernateOGM для neo4j в настоящее время использует обходное решение для транзакции внутри самого OGM.

Теперь это отражено в последнем руководстве по бета-версии. Посмотрите на окно предупреждения

1
twinj 23 Ноя 2014 в 03:17