Генератор сущностей Javax.presistence из базы данных

create.select(BOOK.TITLE)
      .from(BOOK)
      .where(BOOK.PUBLISHED_IN.eq(2011))
      .orderBy(BOOK.TITLE)

public static void main(String[] args) {
    Persistence.generateSchema("samplePU", null);
  }

        <generate>
            <immutablePojos>true</immutablePojos>
            <jpaAnnotations>true</jpaAnnotations>
        </generate>

/**
 * This class is generated by jOOQ
 */
package com.{skip}.common.model.gen.tables.pojos;


import java.io.Serializable;
import java.sql.Timestamp;

import javax.annotation.Generated;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;


/**
 * This class is generated by jOOQ.
 */
@Generated(
	value = {
		"http://www.jooq.org",
		"jOOQ version:3.7.3"
	},
	comments = "This class is generated by jOOQ"
)
@SuppressWarnings({ "all", "unchecked", "rawtypes" })
@Entity
@Table(name = "es_schema", schema = "schema")
public class EsSchema implements Serializable {

	private static final long serialVersionUID = -2141966131;

	private final String    version;
	private final Timestamp createdAt;

	public EsSchema(EsSchema value) {
		//blah
	}

	public EsSchema(
		String    version,
		Timestamp createdAt
	) {
		//blah
	}

	@Id
	@Column(name = "version", unique = true, nullable = false, length = 50)
	public String getVersion() {
		return this.version;
	}

	@Column(name = "created_at", nullable = false)
	public Timestamp getCreatedAt() {
		return this.createdAt;
	}

	@Override
	public String toString() {
	//blah
	}
}

            <plugin>
                <artifactId>maven-antrun-plugin</artifactId>
                <version>1.8</version>
                <executions>
                    <execution> <!--start with mvn antrun:run@hbm2java -->
                        <id>hbm2java</id>
                        <phase>none</phase>
                        <configuration>
                            <target>
                                <property name="compile_classpath" refid="maven.compile.classpath"/>
                                <property name="runtime_classpath" refid="maven.runtime.classpath"/>
                                <property name="test_classpath" refid="maven.test.classpath"/>
                                <property name="plugin_classpath" refid="maven.plugin.classpath"/>

                                <echo message="Start generating entities..."/>
                                <taskdef name="hibernatetool"
                                         classname="org.hibernate.tool.ant.HibernateToolTask"/>
                                <hibernatetool
                                        destdir="src/main/java/">
                                    <classpath>
                                        <path location="${project.build.directory}/classes" />
                                    </classpath>
                                    <jdbcconfiguration
                                            revengfile="src/main/resources/hibernate.reveng.xml"
                                            packagename="com.mydomain"
                                            detectmanytomany="true"
                                            configurationfile="src/main/resources/hibernate.cfg.xml"
                                            reversestrategy="com.mydomain.MyReverseEngineeringStrategy"
                                    />
                                    <hbm2java jdk5="true" ejb3="true"/>
                                </hibernatetool>
                                <echo message="End generating entities."/>
                            </target>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>org.hibernate</groupId>
                        <artifactId>hibernate-core</artifactId>
                        <version>${hibernate.version}</version>
                    </dependency>
                    <dependency>
                        <groupId>org.hibernate</groupId>
                        <artifactId>hibernate-entitymanager</artifactId>
                        <version>${hibernate.version}</version>
                    </dependency>
                    <dependency>
                        <groupId>org.hibernate.common</groupId>
                        <artifactId>hibernate-commons-annotations</artifactId>
                        <version>${hibernate-annotations.version}</version>
                    </dependency>
                    <dependency>
                        <groupId>org.hibernate.javax.persistence</groupId>
                        <artifactId>hibernate-jpa-2.1-api</artifactId>
                        <version>1.0.0.Final</version>
                    </dependency>
                    <dependency>
                        <groupId>org.hibernate</groupId>
                        <artifactId>hibernate-tools</artifactId>
                        <version>${hibernate.version}</version>
                        <exclusions>
                            <exclusion>
                                <groupId>*</groupId>
                                <artifactId>*</artifactId>
                            </exclusion>
                        </exclusions>
                    </dependency>
                    <dependency>
                        <groupId>javax.transaction</groupId>
                        <artifactId>jta</artifactId>
                        <version>1.1</version>
                    </dependency>
                    <dependency>
                        <groupId>freemarker</groupId>
                        <artifactId>freemarker</artifactId>
                        <version>2.3.8</version>
                    </dependency>
                    <dependency>
                        <groupId>org.postgresql</groupId>
                        <artifactId>postgresql</artifactId>
                        <version>${postgresql.version}</version>
                    </dependency>
                    <dependency>
                        <groupId>commons-logging</groupId>
                        <artifactId>commons-logging</artifactId>
                        <version>1.1</version>
                    </dependency>
                    <dependency>
                        <groupId>commons-collections</groupId>
                        <artifactId>commons-collections</artifactId>
                        <version>3.2.1</version>
                    </dependency>
                </dependencies>
            </plugin>