org.ruogu.lang3.builder.Person.java Source code

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.ruogu.lang3.builder;

import org.apache.commons.lang3.builder.CompareToBuilder;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

public class Person {
    String name;
    int age;
    boolean smoker;
    int[] scores = { 12, 3, 111, 9 };

    public int compareTo(Object o) {
        Person p = (Person) o;
        return new CompareToBuilder().append(this.name, p.name).append(this.age, p.age)
                .append(this.smoker, p.smoker).toComparison();
    }

    public int hashCode2() {
        // you pick a hard-coded, randomly chosen, non-zero, odd number
        // ideally different for each class
        return new HashCodeBuilder(17, 37).append(name).append(age).append(smoker).toHashCode();
    }

    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (obj == this) {
            return true;
        }
        if (obj.getClass() != getClass()) {
            return false;
        }
        Person p = (Person) obj;
        return new EqualsBuilder().append(this.name, p.name).append(this.age, p.age).append(this.smoker, p.smoker)
                .isEquals();
    }

    public boolean equals2(Object obj) {
        if (obj == null) {
            return false;
        }
        if (obj == this) {
            return true;
        }
        if (obj.getClass() != getClass()) {
            return false;
        }
        Person p = (Person) obj;
        System.out.println("...");
        System.out.println("super.equals(obj):" + super.equals(obj));
        EqualsBuilder eb = new EqualsBuilder();
        System.out.println("eb:" + eb.isEquals());
        return eb.append(this.name, p.name).append(this.age, p.age).append(this.smoker, p.smoker).isEquals();
    }

    public String toString2() {
        return new ToStringBuilder(this, ToStringStyle.MULTI_LINE_STYLE).append("name", name).append("age", age)
                .append("smoker", smoker).append(scores).toString();
    }
}