/**
* Copyright 2010 Gunnar Morling (http://www.gunnarmorling.de/)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.gmorling.moapa.builder_pattern;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Past;
import javax.validation.constraints.Size;
public class Customer {
private long id;
private String firstName;
private String lastName;
private Date birthday;
private Customer(Builder builder) {
this.id = builder.id;
this.firstName = builder.firstName;
this.lastName = builder.lastName;
this.birthday = builder.birthday;
}
public static class Builder {
private static Validator validator = Validation
.buildDefaultValidatorFactory().getValidator();
private long id;
private String firstName;
private String lastName;
private Date birthday;
public Builder(long id, String lastName) {
this.id = id;
this.lastName = lastName;
}
public Builder firstName(String firstName) {
this.firstName = firstName;
return this;
}
public Builder birthday(Date birthday) {
this.birthday = birthday;
return this;
}
public Customer build() throws ConstraintViolationException {
Customer customer = new Customer(this);
Set<ConstraintViolation<Customer>> violations = validator
.validate(customer);
if (!violations.isEmpty()) {
throw new ConstraintViolationException(
new HashSet<ConstraintViolation<?>>(violations));
}
return customer;
}
}
@Min(1)
public long getId() {
return id;
}
@Size(min = 3, max = 80)
public String getFirstName() {
return firstName;
}
@Size(min = 3, max = 80)
@NotNull
public String getLastName() {
return lastName;
}
@Past
public Date getBirthday() {
return birthday;
}
}