org.apache.commons.lang3.builder

Class 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 and Description
private int	id
private java.lang.Object	value

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and 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