employeeservice.java

JPA最好的

package com.ibm.dw.spring2;

import java.util.List;

public interface EmployeeService {

	// create a new employee
	public Employee save(Employee emp);
	
	// removing an employee
	public void delete(Employee emp);


    // update the information on an employee
	public Employee update(Employee emp);

	// find all the employees in the company 
    public List<Employee> findAll();
    
//  find an employee by the employee number
	public List<Employee> findByEmployeeNumber(String empno);


    // find an employee by his name
	public List<Employee> findByEmployeeLastName(String lastName);

	// find an employees living on a street
	public List<Employee> findByAddressStreetName(String streetName);
	
	// find an employee by the internal unique id
	public Employee findById(long id);
  
	// find employee over a certain salary
	public List<Employee> findEmployeeWithSalaryOver(double sal);
	
	// find employee with a certain commission income
	public List<Employee> findEmployeeWithCommissionOver(double comm);
		
}