JAVA: hibernate + hashmap

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Как я должен хранить данные в объекте и вызывать его с помощью хэш-карты ?

означает это : как я должен получить извлечение данных JPA и вызвать его в классе mymethod ?

ListCustomer.put(Long.valueOf(1), new Customer("","","",""));

Что я уже пробовал:

SelectCustomer

private int SelectCustomer() {

    String Query = "from Customer";
    int result = 0;


    //create session factory
    sessionFactory = new Configuration().configure("hibcfg.glotng.xml")
            .addAnnotatedClass(Customer.class).buildSessionFactory();

    //create session
    session = sessionFactory.getCurrentSession();

    try {
        //start transaction
        session.beginTransaction();

        //query CUSTOMER LIST
        theCustomer = session.createQuery(Query).list();

        System.out.println("############ Customer #######################");

        for(Iterator iterator = theCustomer.iterator();iterator.hasNext();){
            Customer theCustomer = (Customer) iterator.next();

            System.out.println(theCustomer.getName());
            System.out.println(theCustomer.getIdNumber());
            System.out.println(theCustomer.getBirthDate());
        }


    } catch (Exception ex) {
        ex.printStackTrace();


    } finally {
        session.close();
        sessionFactory.close();

        return result;
    }

}

модель

package com.amlaPortal.entity;

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

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

	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	@Column(name = "id")
	private  Long Id;

	@Column(name = "name")
	private  String Name;

	@Column(name = "id_number")
	private  String IdNumber;

	@Column(name = "birth_date")
	private  String BirthDate;

	@Column(name = "mobile_no")
	private  String MobileNo;

	public Customer(){

	}


	public Customer(String name, String idNumber, String birthDate, String mobileNo) {
		Name = name;
		IdNumber = idNumber;
		BirthDate = birthDate;
		MobileNo = mobileNo;
	}

	public  Long getId() {
		return Id;
	}

	public void setId(Long id) {
		Id = id;
	}

	public  String getName() {
		return Name;
	}

	public void setName(String name) {
		Name = name;
	}

	public  String getIdNumber() {
		return IdNumber;
	}

	public void setIdNumber(String idNumber) {
		IdNumber = idNumber;
	}

	public  String getBirthDate() {
		return BirthDate;
	}

	public void setBirthDate(String birthDate) {
		BirthDate = birthDate;
	}

	public  String getMobileNo() {
		return MobileNo;
	}

	public void setMobileNo(String mobileNo) {
		MobileNo = mobileNo;
	}


	@Override
	public String toString() {
		return "Customer{" +
				"Id=" + Id +
				", Name='" + Name + '\'' +
				", IdNumber='" + IdNumber + '\'' +
				", BirthDate='" + BirthDate + '\'' +
				", MobileNo='" + MobileNo + '\'' +
				'}';
	}
}

мой метод

package com.amlaPortal;

import com.amlaPortal.entity.Customer;
import com.amlaPortal.entity.TotalCount;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * Created by Asyraf-PC on 3/29/2018.
 */
class mymethodc {

    List<Map<Long, Customer>> ListCustomer = new ArrayList<Map<Long,Customer>>();


    public void myMap(){

        //MAP the total Count
        ListCustomer.put(Long.valueOf(1), new Customer("","","",""));

    }

}

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