BAEL-3283 - Moved the code to a single package meant for the themes tutorial.

spring-mvc-views/src/main/java/com/baeldung/themes/config/DataSourceConfig.java

@@ -0,0 +1,44 @@
+package com.baeldung.themes.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
+import org.springframework.orm.jpa.JpaTransactionManager;
+import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
+import org.springframework.transaction.PlatformTransactionManager;
+
+import javax.persistence.EntityManagerFactory;
+import javax.sql.DataSource;
+
+@EnableJpaRepositories(basePackages = "com.baeldung")
+public class DataSourceConfig {
+    @Bean
+    public DataSource dataSource() {
+        EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();
+        return builder.setType(EmbeddedDatabaseType.HSQL)
+            .addScripts("db/sql/create-db.sql", "db/sql/insert-data.sql")
+            .build();
+    }
+
+    @Bean
+    public LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource) {
+        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
+        em.setDataSource(dataSource);
+        em.setPackagesToScan("com.baeldung.themes.domain");
+        em.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
+        return em;
+    }
+
+    @Bean
+    public PlatformTransactionManager transactionManager(EntityManagerFactory emf) {
+        return new JpaTransactionManager(emf);
+    }
+
+    @Bean
+    public PersistenceExceptionTranslationPostProcessor exceptionTranslation(){
+        return new PersistenceExceptionTranslationPostProcessor();
+    }
+}