EqualsBuilder (java-sdk-common 1.0.9.1 API)

java.lang.Object
- com.dahuatech.hutool.core.builder.EqualsBuilder

所有已实现的接口:: Builder<Boolean>, Serializable

public class EqualsBuilder
extends Object
implements Builder<Boolean>

Object.equals(Object) 方法的构建器

两个对象equals必须保证hashCode值相等，hashCode值相等不能保证一定equals

使用方法如下：

 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();
  }

我们也可以通过反射判断所有字段是否equals：

 public boolean equals(Object obj) {
   return EqualsBuilder.reflectionEquals(this, obj);
 }

另请参阅:: 序列化表格

构造器概要

构造器
构造器和说明

EqualsBuilder()
构造，初始状态值为true

构造器
构造器和说明
`EqualsBuilder()` 构造，初始状态值为true

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`EqualsBuilder`	`append(boolean[] lhs, boolean[] rhs)` Deep comparison of array of `boolean`.
`EqualsBuilder`	`append(boolean lhs, boolean rhs)` Test if two `booleans`s are equal.
`EqualsBuilder`	`append(byte[] lhs, byte[] rhs)` Deep comparison of array of `byte`.
`EqualsBuilder`	`append(byte lhs, byte rhs)` Test if two `byte`s are equal.
`EqualsBuilder`	`append(char[] lhs, char[] rhs)` Deep comparison of array of `char`.
`EqualsBuilder`	`append(char lhs, char rhs)` Test if two `char`s are equal.
`EqualsBuilder`	`append(double[] lhs, double[] rhs)` Deep comparison of array of `double`.
`EqualsBuilder`	`append(double lhs, double rhs)` Test if two `double`s are equal by testing that the pattern of bits returned by `doubleToLong` are equal.
`EqualsBuilder`	`append(float[] lhs, float[] rhs)` Deep comparison of array of `float`.
`EqualsBuilder`	`append(float lhs, float rhs)` Test if two `float`s are equal byt testing that the pattern of bits returned by doubleToLong are equal.
`EqualsBuilder`	`append(int[] lhs, int[] rhs)` Deep comparison of array of `int`.
`EqualsBuilder`	`append(int lhs, int rhs)` Test if two `int`s are equal.
`EqualsBuilder`	`append(long[] lhs, long[] rhs)` Deep comparison of array of `long`.
`EqualsBuilder`	`append(long lhs, long rhs)` Test if two `long` s are equal.
`EqualsBuilder`	`append(Object[] lhs, Object[] rhs)` Performs a deep comparison of two `Object` arrays.
`EqualsBuilder`	`append(Object lhs, Object rhs)` Test if two `Object`s are equal using their `equals` method.
`EqualsBuilder`	`append(short[] lhs, short[] rhs)` Deep comparison of array of `short`.
`EqualsBuilder`	`append(short lhs, short rhs)` Test if two `short`s are equal.
`EqualsBuilder`	`appendSuper(boolean superEquals)` Adds the result of `super.equals()` to this builder.
`Boolean`	`build()` Returns `true` if the fields that have been checked are all equal.
`boolean`	`isEquals()` Returns `true` if the fields that have been checked are all equal.
`static boolean`	`reflectionEquals(Object lhs, Object rhs, boolean testTransients)` This method uses reflection to determine if the two `Object`s are equal.
`static boolean`	`reflectionEquals(Object lhs, Object rhs, boolean testTransients, Class<?> reflectUpToClass, String... excludeFields)` This method uses reflection to determine if the two `Object`s are equal.
`static boolean`	`reflectionEquals(Object lhs, Object rhs, Collection<String> excludeFields)` 反射检查两个对象是否equals，此方法检查对象及其父对象的属性（包括私有属性）是否equals
`static boolean`	`reflectionEquals(Object lhs, Object rhs, String... excludeFields)` 反射检查两个对象是否equals，此方法检查对象及其父对象的属性（包括私有属性）是否equals
`void`	`reset()` Reset the EqualsBuilder so you can use the same object again
`protected void`	`setEquals(boolean isEquals)` Sets the `isEquals` value.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - EqualsBuilder
```
public EqualsBuilder()
```
    构造，初始状态值为true
- 方法详细资料
  - reflectionEquals
```
public static boolean reflectionEquals(Object lhs,
                                       Object rhs,
                                       Collection<String> excludeFields)
```
    反射检查两个对象是否equals，此方法检查对象及其父对象的属性（包括私有属性）是否equals
    
    参数:
    
    lhs - 此对象
    
    rhs - 另一个对象
    
    excludeFields - 排除的字段集合，如果有不参与计算equals的字段加入此集合即可
    
    返回:
    
    两个对象是否equals，是返回true
  - reflectionEquals
```
public static boolean reflectionEquals(Object lhs,
                                       Object rhs,
                                       String... excludeFields)
```
    反射检查两个对象是否equals，此方法检查对象及其父对象的属性（包括私有属性）是否equals
    
    参数:
    
    lhs - 此对象
    
    rhs - 另一个对象
    
    excludeFields - 排除的字段集合，如果有不参与计算equals的字段加入此集合即可
    
    返回:
    
    两个对象是否equals，是返回true
  - reflectionEquals
```
public static boolean reflectionEquals(Object lhs,
                                       Object rhs,
                                       boolean testTransients)
```
    This method uses reflection to determine if the two Objects are equal.
    It uses AccessibleObject.setAccessible 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. Non-primitive fields are compared using equals().
    If the TestTransients parameter is set to true, transient members will be tested, otherwise they are ignored, as they are likely derived fields, and not part of the value of the Object.
    Static fields will not be tested. Superclass fields will be included.
    
    参数:
    
    lhs - this object
    
    rhs - the other object
    
    testTransients - whether to include transient fields
    
    返回:
    
    true if the two Objects have tested equals.
  - reflectionEquals
```
public static boolean reflectionEquals(Object lhs,
                                       Object rhs,
                                       boolean testTransients,
                                       Class<?> reflectUpToClass,
                                       String... excludeFields)
```
    This method uses reflection to determine if the two Objects are equal.
    It uses AccessibleObject.setAccessible 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. Non-primitive fields are compared using equals().
    If the testTransients parameter is set to true, transient members will be tested, otherwise they are ignored, as they are likely derived fields, and not part of the value of the Object.
    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.
    
    参数:
    
    lhs - this object
    
    rhs - the other object
    
    testTransients - whether to include transient fields
    
    reflectUpToClass - the superclass to reflect up to (inclusive), may be null
    
    excludeFields - array of field names to exclude from testing
    
    返回:
    
    true if the two Objects have tested equals.
    
    从以下版本开始:
    
    2.0
  - appendSuper
```
public EqualsBuilder appendSuper(boolean superEquals)
```
    Adds the result of super.equals() to this builder.
    
    参数:
    
    superEquals - the result of calling super.equals()
    
    返回:
    
    EqualsBuilder - used to chain calls.
    
    从以下版本开始:
    
    2.0
  - append
```
public EqualsBuilder append(Object lhs,
                            Object rhs)
```
    Test if two Objects are equal using their equals method.
    
    参数:
    
    lhs - the left hand object
    
    rhs - the right hand object
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(long lhs,
                            long rhs)
```
    Test if two long s are equal.
    
    参数:
    
    lhs - the left hand long
    
    rhs - the right hand long
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(int lhs,
                            int rhs)
```
    Test if two ints are equal.
    
    参数:
    
    lhs - the left hand int
    
    rhs - the right hand int
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(short lhs,
                            short rhs)
```
    Test if two shorts are equal.
    
    参数:
    
    lhs - the left hand short
    
    rhs - the right hand short
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(char lhs,
                            char rhs)
```
    Test if two chars are equal.
    
    参数:
    
    lhs - the left hand char
    
    rhs - the right hand char
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(byte lhs,
                            byte rhs)
```
    Test if two bytes are equal.
    
    参数:
    
    lhs - the left hand byte
    
    rhs - the right hand byte
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(double lhs,
                            double rhs)
```
    Test if two doubles are equal by testing that the pattern of bits returned by doubleToLong are equal.
    This handles NaNs, Infinities, and -0.0.
    It is compatible with the hash code generated by HashCodeBuilder.
    
    参数:
    
    lhs - the left hand double
    
    rhs - the right hand double
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(float lhs,
                            float rhs)
```
    Test if two floats are equal byt testing that the pattern of bits returned by doubleToLong are equal.
    This handles NaNs, Infinities, and -0.0.
    It is compatible with the hash code generated by HashCodeBuilder.
    
    参数:
    
    lhs - the left hand float
    
    rhs - the right hand float
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(boolean lhs,
                            boolean rhs)
```
    Test if two booleanss are equal.
    
    参数:
    
    lhs - the left hand boolean
    
    rhs - the right hand boolean
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(Object[] lhs,
                            Object[] rhs)
```
    Performs a deep comparison of two Object arrays.
    This also will be called for the top level of multi-dimensional, ragged, and multi-typed arrays.
    
    参数:
    
    lhs - the left hand Object[]
    
    rhs - the right hand Object[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(long[] lhs,
                            long[] rhs)
```
    Deep comparison of array of long. Length and all values are compared.
    The method append(long, long) is used.
    
    参数:
    
    lhs - the left hand long[]
    
    rhs - the right hand long[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(int[] lhs,
                            int[] rhs)
```
    Deep comparison of array of int. Length and all values are compared.
    The method append(int, int) is used.
    
    参数:
    
    lhs - the left hand int[]
    
    rhs - the right hand int[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(short[] lhs,
                            short[] rhs)
```
    Deep comparison of array of short. Length and all values are compared.
    The method append(short, short) is used.
    
    参数:
    
    lhs - the left hand short[]
    
    rhs - the right hand short[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(char[] lhs,
                            char[] rhs)
```
    Deep comparison of array of char. Length and all values are compared.
    The method append(char, char) is used.
    
    参数:
    
    lhs - the left hand char[]
    
    rhs - the right hand char[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(byte[] lhs,
                            byte[] rhs)
```
    Deep comparison of array of byte. Length and all values are compared.
    The method append(byte, byte) is used.
    
    参数:
    
    lhs - the left hand byte[]
    
    rhs - the right hand byte[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(double[] lhs,
                            double[] rhs)
```
    Deep comparison of array of double. Length and all values are compared.
    The method append(double, double) is used.
    
    参数:
    
    lhs - the left hand double[]
    
    rhs - the right hand double[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(float[] lhs,
                            float[] rhs)
```
    Deep comparison of array of float. Length and all values are compared.
    The method append(float, float) is used.
    
    参数:
    
    lhs - the left hand float[]
    
    rhs - the right hand float[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - append
```
public EqualsBuilder append(boolean[] lhs,
                            boolean[] rhs)
```
    Deep comparison of array of boolean. Length and all values are compared.
    The method append(boolean, boolean) is used.
    
    参数:
    
    lhs - the left hand boolean[]
    
    rhs - the right hand boolean[]
    
    返回:
    
    EqualsBuilder - used to chain calls.
  - isEquals
```
public boolean isEquals()
```
    Returns true if the fields that have been checked are all equal.
    
    返回:
    
    boolean
  - setEquals
```
protected void setEquals(boolean isEquals)
```
    Sets the isEquals value.
    
    参数:
    
    isEquals - The value to set.
    
    从以下版本开始:
    
    2.1
  - build
```
public Boolean build()
```
    Returns true if the fields that have been checked are all equal.
    
    指定者:
    
    build 在接口中 Builder<Boolean>
    
    返回:
    
    true if all of the fields that have been checked are equal, false otherwise.
    
    从以下版本开始:
    
    3.0
  - reset
```
public void reset()
```
    Reset the EqualsBuilder so you can use the same object again
    
    从以下版本开始:
    
    2.5

类 EqualsBuilder

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

EqualsBuilder

方法详细资料

reflectionEquals

reflectionEquals

reflectionEquals

reflectionEquals

appendSuper

append

append

append

append

append

append

append

append

append

append

append

append

append

append

append

append

append

append

isEquals

setEquals

build

reset