/*
* 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.caudexorigo.builder;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
/**
* <p>
* Assists in implementing {@link Object#equals(Object)} methods.
* </p>
*
* <p>
* This class provides methods to build a good equals method for any class. It follows rules laid out in <a href="http://java.sun.com/docs/books/effective/index.html">Effective Java</a> , by Joshua Bloch. In particular the rule for comparing <code>doubles</code>, <code>floats</code>, and arrays can be tricky. Also, making sure that <code>equals()</code> and <code>hashCode()</code> are consistent can be difficult.
* </p>
*
* <p>
* Two Objects that compare as equals must generate the same hash code, but two Objects with the same hash code do not have to be equal.
* </p>
*
* <p>
* All relevant fields should be included in the calculation of equals. Derived fields may be ignored. In particular, any field used in generating a hash code must be used in the equals method, and vice versa.
* </p>
*
* <p>
* Typical use for the code is as follows:
* </p>
*
* <pre>
* public boolean equals(Object obj)
* {
* if (obj == null)
* {
* return false;
* }
* if (obj == this)
* {
* return true;
* }
* if (obj.getClass() != getClass())
* {
* return false;
* }
* MyClass rhs = (MyClass) obj;
* return new EqualsBuilder().appendSuper(super.equals(obj)).append(field1, rhs.field1).append(field2, rhs.field2).append(field3, rhs.field3).isEquals();
* }
* </pre>
*
* <p>
* Alternatively, there is a method that uses reflection to determine the fields to test. Because these fields are usually private, the method, <code>reflectionEquals</code>, uses <code>AccessibleObject.setAccessible</code> to change the visibility of the fields. This will fail under a security manager, unless the appropriate permissions are set up correctly. It is also slower than testing explicitly.
* </p>
*
* <p>
* A typical invocation for this method would look like:
* </p>
*
* <pre>
* public boolean equals(Object obj)
* {
* return EqualsBuilder.reflectionEquals(this, obj);
* }
* </pre>
*
* @author <a href="mailto:steve.downey@netfolio.com">Steve Downey</a>
* @author Stephen Colebourne
* @author Gary Gregory
* @author Pete Gieser
* @author Arun Mammen Thomas
* @since 1.0
* @version $Id: EqualsBuilder.java 611543 2008-01-13 07:00:22Z bayard $
*/
public class EqualsBuilder
{
/**
* If the fields tested are equals. The default value is <code>true</code>.
*/
private boolean isEquals = true;
/**
* <p>
* Constructor for EqualsBuilder.
* </p>
*
* <p>
* Starts off assuming that equals is <code>true</code>.
* </p>
*
* @see Object#equals(Object)
*/
public EqualsBuilder()
{
// do nothing for now.
}
// -------------------------------------------------------------------------
/**
* <p>
* This method uses reflection to determine if the two <code>Object</code>s are equal.
* </p>
*
* <p>
* It uses <code>AccessibleObject.setAccessible</code> to gain access to private fields. This means that it will throw a security exception if run under a security manager, if the permissions are not set up correctly. It is also not as efficient as testing explicitly.
* </p>
*
* <p>
* Transient members will be not be tested, as they are likely derived fields, and not part of the value of the Object.
* </p>
*
* <p>
* Static fields will not be tested. Superclass fields will be included.
* </p>
*
* @param lhs
* <code>this</code> object
* @param rhs
* the other object
* @return <code>true</code> if the two Objects have tested equals.
*/
public static boolean reflectionEquals(Object lhs, Object rhs)
{
return reflectionEquals(lhs, rhs, false, null, null);
}
/**
* <p>
* This method uses reflection to determine if the two <code>Object</code>s are equal.
* </p>
*
* <p>
* It uses <code>AccessibleObject.setAccessible</code> to gain access to private fields. This means that it will throw a security exception if run under a security manager, if the permissions are not set up correctly. It is also not as efficient as testing explicitly.
* </p>
*
* <p>
* Transient members will be not be tested, as they are likely derived fields, and not part of the value of the Object.
* </p>
*
* <p>
* Static fields will not be tested. Superclass fields will be included.
* </p>
*
* @param lhs
* <code>this</code> object
* @param rhs
* the other object
* @param excludeFields
* Collection of String field names to exclude from testing
* @return <code>true</code> if the two Objects have tested equals.
*/
public static boolean reflectionEquals(Object lhs, Object rhs, Collection /* String */excludeFields)
{
return reflectionEquals(lhs, rhs, ReflectionToStringBuilder.toNoNullStringArray(excludeFields));
}
/**
* <p>
* This method uses reflection to determine if the two <code>Object</code>s are equal.
* </p>
*
* <p>
* It uses <code>AccessibleObject.setAccessible</code> to gain access to private fields. This means that it will throw a security exception if run under a security manager, if the permissions are not set up correctly. It is also not as efficient as testing explicitly.
* </p>
*
* <p>
* Transient members will be not be tested, as they are likely derived fields, and not part of the value of the Object.
* </p>
*
* <p>
* Static fields will not be tested. Superclass fields will be included.
* </p>
*
* @param lhs
* <code>this</code> object
* @param rhs
* the other object
* @param excludeFields
* array of field names to exclude from testing
* @return <code>true</code> if the two Objects have tested equals.
*/
public static boolean reflectionEquals(Object lhs, Object rhs, String[] excludeFields)
{
return reflectionEquals(lhs, rhs, false, null, excludeFields);
}
/**
* <p>
* This method uses reflection to determine if the two <code>Object</code>s are equal.
* </p>
*
* <p>
* It uses <code>AccessibleObject.setAccessible</code> to gain access to private fields. This means that it will throw a security exception if run under a security manager, if the permissions are not set up correctly. It is also not as efficient as testing explicitly.
* </p>
*
* <p>
* If the TestTransients parameter is set to <code>true</code>, transient members will be tested, otherwise they are ignored, as they are likely derived fields, and not part of the value of the <code>Object</code>.
* </p>
*
* <p>
* Static fields will not be tested. Superclass fields will be included.
* </p>
*
* @param lhs
* <code>this</code> object
* @param rhs
* the other object
* @param testTransients
* whether to include transient fields
* @return <code>true</code> if the two Objects have tested equals.
*/
public static boolean reflectionEquals(Object lhs, Object rhs, boolean testTransients)
{
return reflectionEquals(lhs, rhs, testTransients, null, null);
}
/**
* <p>
* This method uses reflection to determine if the two <code>Object</code>s are equal.
* </p>
*
* <p>
* It uses <code>AccessibleObject.setAccessible</code> to gain access to private fields. This means that it will throw a security exception if run under a security manager, if the permissions are not set up correctly. It is also not as efficient as testing explicitly.
* </p>
*
* <p>
* If the testTransients parameter is set to <code>true</code>, transient members will be tested, otherwise they are ignored, as they are likely derived fields, and not part of the value of the <code>Object</code>.
* </p>
*
* <p>
* Static fields will not be included. Superclass fields will be appended up to and including the specified superclass. A null superclass is treated as java.lang.Object.
* </p>
*
* @param lhs
* <code>this</code> object
* @param rhs
* the other object
* @param testTransients
* whether to include transient fields
* @param reflectUpToClass
* the superclass to reflect up to (inclusive), may be <code>null</code>
* @return <code>true</code> if the two Objects have tested equals.
* @since 2.0
*/
public static boolean reflectionEquals(Object lhs, Object rhs, boolean testTransients, Class reflectUpToClass)
{
return reflectionEquals(lhs, rhs, testTransients, reflectUpToClass, null);
}
/**
* <p>
* This method uses reflection to determine if the two <code>Object</code>s are equal.
* </p>
*
* <p>
* It uses <code>AccessibleObject.setAccessible</code> to gain access to private fields. This means that it will throw a security exception if run under a security manager, if the permissions are not set up correctly. It is also not as efficient as testing explicitly.
* </p>
*
* <p>
* If the testTransients parameter is set to <code>true</code>, transient members will be tested, otherwise they are ignored, as they are likely derived fields, and not part of the value of the <code>Object</code>.
* </p>
*
* <p>
* Static fields will not be included. Superclass fields will be appended up to and including the specified superclass. A null superclass is treated as java.lang.Object.
* </p>
*
* @param lhs
* <code>this</code> object
* @param rhs
* the other object
* @param testTransients
* whether to include transient fields
* @param reflectUpToClass
* the superclass to reflect up to (inclusive), may be <code>null</code>
* @param excludeFields
* array of field names to exclude from testing
* @return <code>true</code> if the two Objects have tested equals.
* @since 2.0
*/
public static boolean reflectionEquals(Object lhs, Object rhs, boolean testTransients, Class reflectUpToClass, String[] excludeFields)
{
if (lhs == rhs)
{
return true;
}
if (lhs == null || rhs == null)
{
return false;
}
// Find the leaf class since there may be transients in the leaf
// class or in classes between the leaf and root.
// If we are not testing transients or a subclass has no ivars,
// then a subclass can test equals to a superclass.
Class lhsClass = lhs.getClass();
Class rhsClass = rhs.getClass();
Class testClass;
if (lhsClass.isInstance(rhs))
{
testClass = lhsClass;
if (!rhsClass.isInstance(lhs))
{
// rhsClass is a subclass of lhsClass
testClass = rhsClass;
}
}
else if (rhsClass.isInstance(lhs))
{
testClass = rhsClass;
if (!lhsClass.isInstance(rhs))
{
// lhsClass is a subclass of rhsClass
testClass = lhsClass;
}
}
else
{
// The two classes are not related.
return false;
}
EqualsBuilder equalsBuilder = new EqualsBuilder();
try
{
reflectionAppend(lhs, rhs, testClass, equalsBuilder, testTransients, excludeFields);
while (testClass.getSuperclass() != null && testClass != reflectUpToClass)
{
testClass = testClass.getSuperclass();
reflectionAppend(lhs, rhs, testClass, equalsBuilder, testTransients, excludeFields);
}
}
catch (IllegalArgumentException e)
{
// In this case, we tried to test a subclass vs. a superclass and
// the subclass has ivars or the ivars are transient and
// we are testing transients.
// If a subclass has ivars that we are trying to test them, we get an
// exception and we know that the objects are not equal.
return false;
}
return equalsBuilder.isEquals();
}
/**
* <p>
* Appends the fields and values defined by the given object of the given Class.
* </p>
*
* @param lhs
* the left hand object
* @param rhs
* the right hand object
* @param clazz
* the class to append details of
* @param builder
* the builder to append to
* @param useTransients
* whether to test transient fields
* @param excludeFields
* array of field names to exclude from testing
*/
private static void reflectionAppend(Object lhs, Object rhs, Class clazz, EqualsBuilder builder, boolean useTransients, String[] excludeFields)
{
Field[] fields = clazz.getDeclaredFields();
List excludedFieldList = excludeFields != null ? Arrays.asList(excludeFields) : Collections.EMPTY_LIST;
AccessibleObject.setAccessible(fields, true);
for (int i = 0; i < fields.length && builder.isEquals; i++)
{
Field f = fields[i];
if (!excludedFieldList.contains(f.getName()) && (f.getName().indexOf('$') == -1) && (useTransients || !Modifier.isTransient(f.getModifiers())) && (!Modifier.isStatic(f.getModifiers())))
{
try
{
builder.append(f.get(lhs), f.get(rhs));
}
catch (IllegalAccessException e)
{
// this can't happen. Would get a Security exception instead
// throw a runtime exception in case the impossible happens.
throw new InternalError("Unexpected IllegalAccessException");
}
}
}
}
// -------------------------------------------------------------------------
/**
* <p>
* Adds the result of <code>super.equals()</code> to this builder.
* </p>
*
* @param superEquals
* the result of calling <code>super.equals()</code>
* @return EqualsBuilder - used to chain calls.
* @since 2.0
*/
public EqualsBuilder appendSuper(boolean superEquals)
{
if (isEquals == false)
{
return this;
}
isEquals = superEquals;
return this;
}
// -------------------------------------------------------------------------
/**
* <p>
* Test if two <code>Object</code>s are equal using their <code>equals</code> method.
* </p>
*
* @param lhs
* the left hand object
* @param rhs
* the right hand object
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(Object lhs, Object rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
Class lhsClass = lhs.getClass();
if (!lhsClass.isArray())
{
if ((lhs instanceof java.math.BigDecimal) && (rhs instanceof java.math.BigDecimal))
{
isEquals = (((java.math.BigDecimal) lhs).compareTo((java.math.BigDecimal) rhs) == 0);
}
else
{
// The simple case, not an array, just test the element
isEquals = lhs.equals(rhs);
}
}
else if (lhs.getClass() != rhs.getClass())
{
// Here when we compare different dimensions, for example: a boolean[][] to a boolean[]
this.setEquals(false);
}
// 'Switch' on type of array, to dispatch to the correct handler
// This handles multi dimensional arrays of the same depth
else if (lhs instanceof long[])
{
append((long[]) lhs, (long[]) rhs);
}
else if (lhs instanceof int[])
{
append((int[]) lhs, (int[]) rhs);
}
else if (lhs instanceof short[])
{
append((short[]) lhs, (short[]) rhs);
}
else if (lhs instanceof char[])
{
append((char[]) lhs, (char[]) rhs);
}
else if (lhs instanceof byte[])
{
append((byte[]) lhs, (byte[]) rhs);
}
else if (lhs instanceof double[])
{
append((double[]) lhs, (double[]) rhs);
}
else if (lhs instanceof float[])
{
append((float[]) lhs, (float[]) rhs);
}
else if (lhs instanceof boolean[])
{
append((boolean[]) lhs, (boolean[]) rhs);
}
else
{
// Not an array of primitives
append((Object[]) lhs, (Object[]) rhs);
}
return this;
}
/**
* <p>
* Test if two <code>long</code> s are equal.
* </p>
*
* @param lhs
* the left hand <code>long</code>
* @param rhs
* the right hand <code>long</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(long lhs, long rhs)
{
if (isEquals == false)
{
return this;
}
isEquals = (lhs == rhs);
return this;
}
/**
* <p>
* Test if two <code>int</code>s are equal.
* </p>
*
* @param lhs
* the left hand <code>int</code>
* @param rhs
* the right hand <code>int</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(int lhs, int rhs)
{
if (isEquals == false)
{
return this;
}
isEquals = (lhs == rhs);
return this;
}
/**
* <p>
* Test if two <code>short</code>s are equal.
* </p>
*
* @param lhs
* the left hand <code>short</code>
* @param rhs
* the right hand <code>short</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(short lhs, short rhs)
{
if (isEquals == false)
{
return this;
}
isEquals = (lhs == rhs);
return this;
}
/**
* <p>
* Test if two <code>char</code>s are equal.
* </p>
*
* @param lhs
* the left hand <code>char</code>
* @param rhs
* the right hand <code>char</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(char lhs, char rhs)
{
if (isEquals == false)
{
return this;
}
isEquals = (lhs == rhs);
return this;
}
/**
* <p>
* Test if two <code>byte</code>s are equal.
* </p>
*
* @param lhs
* the left hand <code>byte</code>
* @param rhs
* the right hand <code>byte</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(byte lhs, byte rhs)
{
if (isEquals == false)
{
return this;
}
isEquals = (lhs == rhs);
return this;
}
/**
* <p>
* Test if two <code>double</code>s are equal by testing that the pattern of bits returned by <code>doubleToLong</code> are equal.
* </p>
*
* <p>
* This handles NaNs, Infinities, and <code>-0.0</code>.
* </p>
*
* <p>
* It is compatible with the hash code generated by <code>HashCodeBuilder</code>.
* </p>
*
* @param lhs
* the left hand <code>double</code>
* @param rhs
* the right hand <code>double</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(double lhs, double rhs)
{
if (isEquals == false)
{
return this;
}
return append(Double.doubleToLongBits(lhs), Double.doubleToLongBits(rhs));
}
/**
* <p>
* Test if two <code>float</code>s are equal byt testing that the pattern of bits returned by doubleToLong are equal.
* </p>
*
* <p>
* This handles NaNs, Infinities, and <code>-0.0</code>.
* </p>
*
* <p>
* It is compatible with the hash code generated by <code>HashCodeBuilder</code>.
* </p>
*
* @param lhs
* the left hand <code>float</code>
* @param rhs
* the right hand <code>float</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(float lhs, float rhs)
{
if (isEquals == false)
{
return this;
}
return append(Float.floatToIntBits(lhs), Float.floatToIntBits(rhs));
}
/**
* <p>
* Test if two <code>booleans</code>s are equal.
* </p>
*
* @param lhs
* the left hand <code>boolean</code>
* @param rhs
* the right hand <code>boolean</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(boolean lhs, boolean rhs)
{
if (isEquals == false)
{
return this;
}
isEquals = (lhs == rhs);
return this;
}
/**
* <p>
* Performs a deep comparison of two <code>Object</code> arrays.
* </p>
*
* <p>
* This also will be called for the top level of multi-dimensional, ragged, and multi-typed arrays.
* </p>
*
* @param lhs
* the left hand <code>Object[]</code>
* @param rhs
* the right hand <code>Object[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(Object[] lhs, Object[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Deep comparison of array of <code>long</code>. Length and all values are compared.
* </p>
*
* <p>
* The method {@link #append(long, long)} is used.
* </p>
*
* @param lhs
* the left hand <code>long[]</code>
* @param rhs
* the right hand <code>long[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(long[] lhs, long[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Deep comparison of array of <code>int</code>. Length and all values are compared.
* </p>
*
* <p>
* The method {@link #append(int, int)} is used.
* </p>
*
* @param lhs
* the left hand <code>int[]</code>
* @param rhs
* the right hand <code>int[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(int[] lhs, int[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Deep comparison of array of <code>short</code>. Length and all values are compared.
* </p>
*
* <p>
* The method {@link #append(short, short)} is used.
* </p>
*
* @param lhs
* the left hand <code>short[]</code>
* @param rhs
* the right hand <code>short[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(short[] lhs, short[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Deep comparison of array of <code>char</code>. Length and all values are compared.
* </p>
*
* <p>
* The method {@link #append(char, char)} is used.
* </p>
*
* @param lhs
* the left hand <code>char[]</code>
* @param rhs
* the right hand <code>char[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(char[] lhs, char[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Deep comparison of array of <code>byte</code>. Length and all values are compared.
* </p>
*
* <p>
* The method {@link #append(byte, byte)} is used.
* </p>
*
* @param lhs
* the left hand <code>byte[]</code>
* @param rhs
* the right hand <code>byte[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(byte[] lhs, byte[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Deep comparison of array of <code>double</code>. Length and all values are compared.
* </p>
*
* <p>
* The method {@link #append(double, double)} is used.
* </p>
*
* @param lhs
* the left hand <code>double[]</code>
* @param rhs
* the right hand <code>double[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(double[] lhs, double[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Deep comparison of array of <code>float</code>. Length and all values are compared.
* </p>
*
* <p>
* The method {@link #append(float, float)} is used.
* </p>
*
* @param lhs
* the left hand <code>float[]</code>
* @param rhs
* the right hand <code>float[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(float[] lhs, float[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Deep comparison of array of <code>boolean</code>. Length and all values are compared.
* </p>
*
* <p>
* The method {@link #append(boolean, boolean)} is used.
* </p>
*
* @param lhs
* the left hand <code>boolean[]</code>
* @param rhs
* the right hand <code>boolean[]</code>
* @return EqualsBuilder - used to chain calls.
*/
public EqualsBuilder append(boolean[] lhs, boolean[] rhs)
{
if (isEquals == false)
{
return this;
}
if (lhs == rhs)
{
return this;
}
if (lhs == null || rhs == null)
{
this.setEquals(false);
return this;
}
if (lhs.length != rhs.length)
{
this.setEquals(false);
return this;
}
for (int i = 0; i < lhs.length && isEquals; ++i)
{
append(lhs[i], rhs[i]);
}
return this;
}
/**
* <p>
* Returns <code>true</code> if the fields that have been checked are all equal.
* </p>
*
* @return boolean
*/
public boolean isEquals()
{
return this.isEquals;
}
/**
* Sets the <code>isEquals</code> value.
*
* @param isEquals
* The value to set.
* @since 2.1
*/
protected void setEquals(boolean isEquals)
{
this.isEquals = isEquals;
}
}