Spring Boot JPA example with custom Table based Identifier generation with PostgreSQL

App.java

package demo;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

import org.hibernate.annotations.GenericGenerator;
import org.hibernate.annotations.Parameter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.jpa.repository.JpaRepository;

@SpringBootApplication
public class App {

	public static void main(String[] args) {

		CustomerRepository customerRepository = SpringApplication.run(App.class, args)
				.getBean(CustomerRepository.class);

		Customer customer = new Customer();
		customer.setName("customer" + System.currentTimeMillis());
		customerRepository.save(customer);
	}
}

interface CustomerRepository extends JpaRepository<Customer, Long> {
}

@Entity
@Table(name = "customer")
class Customer {

	@Id
	@GeneratedValue(generator = "pooled")
	@GenericGenerator(name = "pooled", strategy = "enhanced-table", parameters = {
			@Parameter(name = "value_column_name", value = "sequence_next_hi_value"),
			@Parameter(name = "prefer_entity_table_as_segment_value", value = "true"),
			@Parameter(name = "optimizer", value = "pooled-lo"), @Parameter(name = "increment_size", value = "100") })
	Long id;

	String name;

	public Long getId() {
		return id;
	}

	public void setId(Long id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
}

application.yml

spring:
  datasource:
    url: jdbc:postgresql://localhost/training
    username: training
    password: training
    platform: postgresql
  jpa:
    generate-ddl: true
    hibernate:
      use-new-id-generator-mappings: true

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>de.tdlabs.training</groupId>
	<artifactId>spring-boot-jpa-hibernate-postgres</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>spring-boot-jpa-hibernate-postgres</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.4.1.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>

		<dependency>
			<groupId>org.postgresql</groupId>
			<artifactId>postgresql</artifactId>
			<scope>runtime</scope>
		</dependency>
		
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>


</project>