gausssoft.collections
Class MapEntry

java.lang.Object
  |
  +--gausssoft.collections.MapEntry

All Implemented Interfaces:

Cloneable, CloneableObject, Map.Entry, Serializable

public class MapEntry

extends Object

implements Map.Entry, Serializable, CloneableObject

A simple implementation of the Map.Entry interface.

Author:

Allan Crooks

See Also:

Map.Entry, Serialized Form

Constructor Summary

MapEntry(Map.Entry e)
Creates a new MapEntry based on another Map.Entry object.

MapEntry(Object key, Object value)
Creates a new MapEntry.

Method Summary

Object	clone() Clones this MapEntry.
boolean	equals(Object obj) Compares this object to another object.
boolean	equalsKey(Map.Entry e) Compares this MapEntry's key to the key of another Map.Entry object.
boolean	equalsValue(Map.Entry e) Compares this MapEntry's value to the value of another Map.Entry object.
Object	getKey() Returns the key.
Object	getValue() Returns the value.
int	hashCode() Generates a hashcode for this object.
Object	setValue(Object obj) Sets the value.
String	toString() Generates a string repesentation of this object.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapEntry

public MapEntry(Object key,
                Object value)

Creates a new MapEntry.

Parameters:

key - The key.

value - The value.

MapEntry

public MapEntry(Map.Entry e)

Creates a new MapEntry based on another Map.Entry object.

Parameters:

e - The Map.Entry to base this object on.

Throws:

NullPointerException - If e is null.

Method Detail

equalsKey

public final boolean equalsKey(Map.Entry e)

Compares this MapEntry's key to the key of another Map.Entry object.

Parameters:

e - The Entry object to compare it to.

Returns:

true if both objects have the same key.

Throws:

NullPointerException - If e is null.

equalsValue

public final boolean equalsValue(Map.Entry e)

Compares this MapEntry's value to the value of another Map.Entry object.

Parameters:

e - The Entry object to compare it to.

Returns:

true if both objects have the same value.

Throws:

NullPointerException - If e is null.

equals

public boolean equals(Object obj)

Compares this object to another object.

Specified by:

equals in interface Map.Entry

Overrides:

equals in class Object

Returns:

true if this object matches the provided object.

getKey

public final Object getKey()

Returns the key.

Specified by:

getKey in interface Map.Entry

Returns:

The key of this MapEntry.

getValue

public final Object getValue()

Returns the value.

Specified by:

getValue in interface Map.Entry

Returns:

The value of this MapEntry.

setValue

public Object setValue(Object obj)

Sets the value.

Specified by:

setValue in interface Map.Entry

Parameters:

value - The new value of this MapEntry.

hashCode

public int hashCode()

Generates a hashcode for this object. The hashcode is generated by performing:

    key.hashCode() ^ value.hashCode()
 

Specified by:

hashCode in interface Map.Entry

Overrides:

hashCode in class Object

Returns:

A hashcode for this object.

clone

public Object clone()

Clones this MapEntry.

Specified by:

clone in interface CloneableObject

Overrides:

clone in class Object

Returns:

A clone of this object.

toString

public String toString()

Generates a string repesentation of this object.

Overrides:

toString in class Object

Returns:

A string representation of this object.