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/*
* ========================================================================
*
* Copyright 2005 Tim O'Brien.
*
* 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.
*
* ========================================================================
*/
import java.math.BigDecimal;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import org.apache.commons.lang.builder.CompareToBuilder;
import org.apache.commons.lang.builder.ReflectionToStringBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;
public class MainClass {
public static void main(String[] pArgs) throws Exception {
// Create a State
State va = new State("VA", "Virginia");
// Create a Birth Date
Calendar calendar = new GregorianCalendar();
calendar.set(Calendar.YEAR, 1743);
calendar.set(Calendar.MONTH, Calendar.APRIL);
calendar.set(Calendar.DAY_OF_MONTH, 13);
Date dob = calendar.getTime();
BigDecimal moneyRaised = new BigDecimal(293829292.93);
// Create a Political Candidate
PoliticalCandidate candidate = new PoliticalCandidate("Jefferson", "Thomas", dob, moneyRaised,
va);
System.out.println(candidate);
// Create a Political Candidate
PoliticalCandidate candidate2 = new PoliticalCandidate("Jefferson", "Martha", null, null, null);
// Create a Political Candidate
PoliticalCandidate candidate3 = new PoliticalCandidate("Jefferson", "Martha", dob, null, va);
System.out.println("Two Jeffersons are still different (should be > 0): "
+ candidate.compareTo(candidate2));
System.out.println("Two Jeffersons are still different (should be < 0): "
+ candidate2.compareTo(candidate));
System.out.println("Two Martha Js are the same (should be zero): "
+ candidate2.compareTo(candidate3));
}
}
class State {
private String abbreviation;
private String name;
public State() {
}
public State(String abbreviation, String name) {
this.abbreviation = abbreviation;
this.name = name;
}
public String getAbbreviation() {
return abbreviation;
}
public void setAbbreviation(String abbreviation) {
this.abbreviation = abbreviation;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String toString() {
return ReflectionToStringBuilder.reflectionToString(this);
}
}
/*
* ========================================================================
*
* Copyright 2005 Tim O'Brien.
*
* 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.
*
* ========================================================================
*/
class PoliticalCandidate implements Comparable {
private String lastName;
private String firstName;
private Date dateOfBirth;
private BigDecimal moneyRaised;
private State state;
public PoliticalCandidate() {
}
public PoliticalCandidate(String lastName, String firstName, Date dateOfBirth,
BigDecimal moneyRaised, State state) {
this.lastName = lastName;
this.firstName = firstName;
this.dateOfBirth = dateOfBirth;
this.moneyRaised = moneyRaised;
this.state = state;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public Date getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(Date dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
public BigDecimal getMoneyRaised() {
return moneyRaised;
}
public void setMoneyRaised(BigDecimal moneyRaised) {
this.moneyRaised = moneyRaised;
}
public State getState() {
return state;
}
public void setState(State state) {
this.state = state;
}
/*
* public String toString() { return
* ReflectionToStringBuilder.reflectionToString(this); }
*/
/*
* // get/set methods are omitted for brevity... public String toString() {
* return new ToStringBuilder(this, ToStringStyle.MULTI_LINE_STYLE) .append(
* "lastName", lastName ) .append( "firstName", firstName ) .toString(); }
*/
/*
* // get/set methods are omitted for brevity... public String toString() {
* return new ToStringBuilder(this, ToStringStyle.DEFAULT_STYLE) .append(
* "lastName", lastName ) .append( "firstName", firstName ) .toString(); }
*/
/*
* // get/set methods are omitted for brevity... public String toString() {
* return new ToStringBuilder(this, ToStringStyle.NO_FIELD_NAMES_STYLE)
* .append( "lastName", lastName ) .append( "firstName", firstName )
* .toString(); }
*/
// get/set methods are omitted for brevity...
public String toString() {
return new ToStringBuilder(this, ToStringStyle.SIMPLE_STYLE).append("lastName", lastName)
.append("firstName", firstName).toString();
}
/*
* (non-Javadoc)
*
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
// A compare to which mimics the behavior of equals()
public int compareTo(Object o) {
int compare = -1; // By default return less-than
if (o != null && PoliticalCandidate.class.isAssignableFrom(o.getClass())) {
PoliticalCandidate pc = (PoliticalCandidate) o;
compare = (new CompareToBuilder().append(firstName, pc.firstName).append(lastName,
pc.lastName)).toComparison();
}
return compare;
}
}
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Download: CommonLangToStringBuilderForDerivedClass.zip( 203 k)