net.sf.mmm.util.collection.base
Class HashKey<T>

java.lang.Object
  net.sf.mmm.util.collection.base.HashKey<T>

Type Parameters:

T - is the templated type of the delegate-object.

public class HashKey<T>
extends Object

This is a simple class that allows to use any object as hash-key. It only matches the exact same instance regardless of the Object.equals(Object) method of the delegate-object. Additionally it sill matches even if the delegate-object has been modified and therefore changed its hash-code.

Since:

1.0.1

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

Field Summary

private T

delegate

Constructor Summary

HashKey(T object)
The constructor.

Method Summary

boolean	equals(Object other)
T	getDelegate() This method gets the original object this hash-key delegates to.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

delegate

private T delegate

See Also:

getDelegate()

Constructor Detail

HashKey

public HashKey(T object)

The constructor.

Parameters:

object - is the delegate object.

Method Detail

getDelegate

public T getDelegate()

This method gets the original object this hash-key delegates to.

Returns:

the data object.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object