net.sf.mmm.util.collection.base

Class AbstractHashKey<T>

java.lang.Object

net.sf.mmm.util.collection.base.AbstractHashKey<T>

Type Parameters:

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

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

CustomHashKey, HashKey

public abstract class AbstractHashKey<T>
extends Object
implements Serializable

This is an abstract base class that allows to use any object as hash-key with external custom implementations of equals and hashCode.

Since:

4.0.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private T	delegate
private int	hashCode
private static long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractHashKey() The constructor for de-serialization in GWT.
	AbstractHashKey(T object) The constructor.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
T	getDelegate() This method gets the original object this hash-key delegates to.
protected abstract EqualsChecker<T>	getEqualsChecker()
protected abstract HashCodeFunction<T>	getHashCodeFunction()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

delegate

private T delegate

hashCode

private int hashCode

Constructor Detail

AbstractHashKey

protected AbstractHashKey()

The constructor for de-serialization in GWT.

AbstractHashKey

public AbstractHashKey(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.

getEqualsChecker

protected abstract EqualsChecker<T> getEqualsChecker()

Returns:

the EqualsChecker to use by equals(Object).

getHashCodeFunction

protected abstract HashCodeFunction<T> getHashCodeFunction()

Returns:

the HashCodeFunction to use by hashCode().

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