100 lines
2.5 KiB
Java
100 lines
2.5 KiB
Java
package com.iluwatar.value.object;
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/**
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* HeroStat is a Value Object. following rules are from Stephen Colebourne's term VALJO(not the
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* entire rule set) from : http://blog.joda.org/2014/03/valjos-value-java-objects.html<br>
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* Value Objects must override equals(), hashCode() to check the equality with values. <br>
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* Value Objects should be immutable so declare members final. Obtain instances by static factory
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* methods. <br>
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* The elements of the state must be other values, including primitive types.<br>
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* Provide methods, typically simple getters, to get the elements of the state.<br>
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*
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* {@link http://docs.oracle.com/javase/8/docs/api/java/lang/doc-files/ValueBased.html}
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*/
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public class HeroStat {
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// Stats for a hero
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private final int strength;
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private final int intelligence;
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private final int luck;
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// All constructors must be private.
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private HeroStat(int strength, int intelligence, int luck) {
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super();
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this.strength = strength;
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this.intelligence = intelligence;
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this.luck = luck;
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}
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// Static factory method to create new instances.
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public static HeroStat valueOf(int strength, int intelligence, int luck) {
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return new HeroStat(strength, intelligence, luck);
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}
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public int getStrength() {
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return strength;
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}
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public int getIntelligence() {
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return intelligence;
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}
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public int getLuck() {
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return luck;
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}
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/*
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* Recommended to provide a static factory method capable of creating an instance from the formal
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* string representation declared like this. public static HeroStat parse(String string) {}
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*/
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// toString, hashCode, equals
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@Override
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public String toString() {
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return "HeroStat [strength=" + strength + ", intelligence=" + intelligence
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+ ", luck=" + luck + "]";
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}
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@Override
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public int hashCode() {
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final int prime = 31;
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int result = 1;
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result = prime * result + intelligence;
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result = prime * result + luck;
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result = prime * result + strength;
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return result;
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (obj == null) {
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return false;
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}
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if (getClass() != obj.getClass()) {
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return false;
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}
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HeroStat other = (HeroStat) obj;
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if (intelligence != other.intelligence) {
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return false;
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}
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if (luck != other.luck) {
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return false;
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}
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if (strength != other.strength) {
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return false;
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}
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return true;
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}
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// The clone() method should not be public. Just don't override it.
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}
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