Hibernate(Java Configuration) - no persistence units parsed from classpath* meta-inf/persistence.xml spring? - spring

Question

in my Vaadin-Project configured the Spring, now trying to set up giberneyt, and read on the forums - all recommend to add a folder and file. That is understandable, but why? I want all configuration register in java-file.
Here is my config file.
#Configuration
#ComponentScan(basePackageClasses = ApplicationInitializer.class)
#EnableTransactionManagement
#PropertySource("classpath:database.properties")
#EnableJpaRepositories(basePackages = "com.jdev.blog.admin.crud.repositories")
public class ApplicationConfiguration {
private static final String PROPERTY_NAME_DATABASE_DRIVER = "db.driver";
private static final String PROPERTY_NAME_DATABASE_PASSWORD = "db.password";
private static final String PROPERTY_NAME_DATABASE_URL = "db.url";
private static final String PROPERTY_NAME_DATABASE_USERNAME = "db.username";
private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
private static final String PROPERTY_NAME_HIBERNATE_HBM2DDL_AUTO = "hibernate.hbm2ddl.auto";
private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.show_sql";
#Resource
private Environment env;
#Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(env.getRequiredProperty(PROPERTY_NAME_DATABASE_DRIVER));
dataSource.setUrl(env.getRequiredProperty(PROPERTY_NAME_DATABASE_URL));
dataSource.setUsername(env.getRequiredProperty(PROPERTY_NAME_DATABASE_USERNAME));
dataSource.setPassword(env.getRequiredProperty(PROPERTY_NAME_DATABASE_PASSWORD));
return dataSource;
}
#Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
entityManagerFactoryBean.setDataSource(dataSource());
entityManagerFactoryBean.setPersistenceProviderClass(HibernatePersistenceProvider.class);
entityManagerFactoryBean.setJpaProperties(hibProperties());
return entityManagerFactoryBean;
}
private Properties hibProperties() {
Properties properties = new Properties();
properties.put(PROPERTY_NAME_HIBERNATE_DIALECT, env.getRequiredProperty(PROPERTY_NAME_HIBERNATE_DIALECT));
properties.put(PROPERTY_NAME_HIBERNATE_HBM2DDL_AUTO,
env.getRequiredProperty(PROPERTY_NAME_HIBERNATE_HBM2DDL_AUTO));
properties.put(PROPERTY_NAME_HIBERNATE_SHOW_SQL, env.getRequiredProperty(PROPERTY_NAME_HIBERNATE_SHOW_SQL));
return properties;
}
#Bean
public JpaTransactionManager transactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
return transactionManager;
}
}
Error at startup.
20:51:23,476 ERROR [org.springframework.web.context.ContextLoader] (MSC service thread 1-1) Context initialization failed: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactor
y' defined in class com.jdev.blog.admin.config.ApplicationConfiguration: Invocation of init method failed; nested exception is java.lang.IllegalStateException: No persistence units parsed from {classpath*:META-INF/persistence.xml}
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553) [spring-beans-4.0.6.RELEASE.jar:4.0.6.RELEASE]

Answer 1

I think you need emfb.setPackagesToScan("com.package.entity") to insead of persistence.xml
#Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource,
JpaVendorAdapter jpaVendorAdapter) {
LocalContainerEntityManagerFactoryBean emfb =
new LocalContainerEntityManagerFactoryBean();
emfb.setDataSource(dataSource);
emfb.setJpaVendorAdapter(jpaVendorAdapter);
emfb.setPackagesToScan("com.package.entity");
return emfb;
}