Employee.java

/**
 * This file is part of jpa-cert application.
 *
 * Jpa-cert is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * Jpa-cert is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with jpa-cert; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package net.kaczmarzyk.jpacert.domain;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import javax.persistence.CollectionTable;
import javax.persistence.Column;
import javax.persistence.ElementCollection;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.MapKeyColumn;
import javax.persistence.MapKeyEnumerated;
import javax.persistence.OneToMany;
import javax.persistence.Transient;
import javax.validation.constraints.AssertFalse;
import javax.validation.constraints.DecimalMin;

import net.kaczmarzyk.jpacert.validation.Update;


@Entity
public class Employee {

	@Id @GeneratedValue
	private Long id;
	
	private String lastname;
	
	@ElementCollection
	@CollectionTable(name="employee_phones")
	@MapKeyEnumerated(EnumType.STRING)
	@MapKeyColumn(name="phone_type")
	@Column(name="phone_number")
	private Map<PhoneType, String> phoneNumbers;
	
	@OneToMany(mappedBy="employee")
	private Collection<Certificate> certificates;
	
	@DecimalMin("1000")
	@Column(scale=2)
	private BigDecimal salary;
	
	@Transient
	private BigDecimal oldSalary;
	
	
	Employee() {
	}
	
	public Employee(String lastname, BigDecimal salary) {
		this.lastname = lastname;
		this.salary = salary;
	}
	
	public Long getId() {
		return id;
	}
	
	public String getLastname() {
		return lastname;
	}
	
	public void setPhoneNumber(PhoneType type, String number) {
		if (phoneNumbers == null) {
			phoneNumbers = new HashMap<>();
		}
		phoneNumbers.put(type, number);
	}
	
	public String getPhoneNumber(PhoneType type) {
		return phoneNumbers != null ? phoneNumbers.get(type) : null;
	}

	public BigDecimal getSalary() {
		return salary;
	}
	
	public void setSalary(BigDecimal salary) {
		this.oldSalary = this.salary;
		this.salary = salary;
	}
	
	public Collection<Certificate> getCertificates() {
		if (certificates == null) {
			certificates = new ArrayList<>();
		}
		return certificates;
	}
	
	@AssertFalse(groups = {Update.class})
	private boolean isSalaryLowered() {
		return oldSalary != null && oldSalary.compareTo(salary) > 0;
	}
}