58 lines
1.4 KiB
Java
58 lines
1.4 KiB
Java
/*
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* Copyright 2012-2019 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample.test.domain;
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import org.springframework.util.Assert;
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/**
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* A Vehicle Identification Number.
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*
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* @author Phillip Webb
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*/
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public final class VehicleIdentificationNumber {
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private String vin;
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public VehicleIdentificationNumber(String vin) {
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Assert.notNull(vin, "VIN must not be null");
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Assert.isTrue(vin.length() == 17, "VIN must be exactly 17 characters");
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this.vin = vin;
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}
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@Override
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public boolean equals(Object obj) {
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if (obj == this) {
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return true;
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}
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if (obj == null || obj.getClass() != getClass()) {
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return false;
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}
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return this.vin.equals(((VehicleIdentificationNumber) obj).vin);
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}
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@Override
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public int hashCode() {
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return this.vin.hashCode();
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}
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@Override
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public String toString() {
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return this.vin;
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}
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}
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