89 lines
2.9 KiB
Java
89 lines
2.9 KiB
Java
/*
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* Copyright 2018 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package example;
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import example.model.Customer;
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import javax.sql.DataSource;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.Profile;
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import org.springframework.core.env.Environment;
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import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
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import org.springframework.data.repository.config.BootstrapMode;
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import org.springframework.orm.jpa.JpaVendorAdapter;
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import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
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import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
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@SpringBootApplication
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public class Application {
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public static void main(String[] args) {
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SpringApplication.run(Application.class);
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}
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/**
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* Configures a {@link LocalContainerEntityManagerFactoryBean} to use background initialization for the {@code lazy}
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* and {@code deferred} profiles.
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*
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* @author Oliver Gierke
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*/
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@Configuration
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@Profile({ "lazy", "deferred" })
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static class LazyJpaConfiguration {
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@Bean
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public LocalContainerEntityManagerFactoryBean entityManagerFactory(JpaVendorAdapter jpaVendorAdapter,
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DataSource dataSource, Environment environment) {
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ThreadPoolTaskExecutor threadPoolTaskExecutor = new ThreadPoolTaskExecutor();
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threadPoolTaskExecutor.setDaemon(true);
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threadPoolTaskExecutor.afterPropertiesSet();
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LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
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emf.setBootstrapExecutor(threadPoolTaskExecutor);
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emf.setDataSource(dataSource);
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emf.setJpaVendorAdapter(jpaVendorAdapter);
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emf.setPackagesToScan(Customer.class.getPackage().getName());
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return emf;
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}
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}
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/**
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* Bootstraps Spring Data JPA in lazy mode if the {@code lazy} profile is activated.
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*
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* @author Oliver Gierke
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*/
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@Profile("lazy")
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@Configuration
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@EnableJpaRepositories(bootstrapMode = BootstrapMode.LAZY)
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static class LazyRepositoryConfiguration {}
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/**
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* Bootstraps Spring Data JPA in deferred mode if the {@code deferred} profile is activated.
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*
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* @author Oliver Gierke
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*/
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@Profile("deferred")
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@Configuration
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@EnableJpaRepositories(bootstrapMode = BootstrapMode.DEFERRED)
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static class DeferredRepositoryConfiguration {}
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}
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