IDKey

java.lang.Object
- org.apache.commons.lang3.builder.IDKey

```
final class IDKey
extends java.lang.Object
```
Wrap an identity key (System.identityHashCode()) so that an object can only be equal() to itself. This is necessary to disambiguate the occasional duplicate identityHashCodes that can occur.

Field Summary

Fields
Modifier and Type Field Description

private int id

private java.lang.Object value

Constructor Summary

Constructors
Constructor Description

IDKey(java.lang.Object _value)
Constructor for IDKey

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object other)`	checks if instances are equal
`int`	`hashCode()`	returns hash code - i.e.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - value
```
private final java.lang.Object value
```
  - id
```
private final int id
```
- Constructor Detail
  - IDKey
```
IDKey(java.lang.Object _value)
```
    Constructor for IDKey
    
    Parameters:
    
    _value - The value
- Method Detail
  - hashCode
```
public int hashCode()
```
    returns hash code - i.e. the system identity hashcode.
    
    Overrides:
    
    hashCode in class java.lang.Object
    
    Returns:
    
    the hashcode
  - equals
```
public boolean equals(java.lang.Object other)
```
    checks if instances are equal
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    other - The other object to compare to
    
    Returns:
    
    if the instances are for the same object