info.monitorenter.util.collections

Class Entry<V,K>

java.lang.Object

info.monitorenter.util.collections.Entry<V,K>

Type Parameters:

V - the key type.

K - the value type.

All Implemented Interfaces:

java.util.Map.Entry<V,K>

public final class Entry<V,K>
extends java.lang.Object
implements java.util.Map.Entry<V,K>

I have written implementations of java.util.Map.Entry in form of

• Static inner classes.
• Non-static inner classes.
• Non-public classes.
• Anonymous classes.

Almost all implementations were plainforward and not hiding any complexity. One could not downcast them to get more methods, and they were replaceable.
That's it! Finally i decided to hardcode it here... .

But don't you start writing methods like:

 public Entry getEntry(String name);
 
 public void setEntry(Entry entry);
 

Try sticking to the interface java.util.Map.Entry.

See Also:

Map.Entry

Constructor Summary

Constructors

Constructor and Description
Entry(V key, K value) Creates an instance with the given key and value.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
V	getKey() Maybe null!
K	getValue() Maybe null!
int	hashCode()
K	setValue(K value) Sets a new value instance overwriting the old value which is returned.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Map.Entry

comparingByKey, comparingByKey, comparingByValue, comparingByValue

Constructor Detail

Entry

public Entry(V key,
             K value)

Creates an instance with the given key and value.

Parameters:

key - the key instance to use.

value - the value instance to use.

Method Detail

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Map.Entry<V,K>

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(java.lang.Object)

getKey

public V getKey()

Maybe null!

Specified by:

getKey in interface java.util.Map.Entry<V,K>

See Also:

Map.Entry.getKey()

getValue

public K getValue()

Maybe null!

Specified by:

getValue in interface java.util.Map.Entry<V,K>

See Also:

Map.Entry.getValue()

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map.Entry<V,K>

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

setValue

public K setValue(K value)

Sets a new value instance overwriting the old value which is returned.

You may use null. But you will get it back next call!

Specified by:

setValue in interface java.util.Map.Entry<V,K>

Returns:

the previous value instance.

See Also:

Map.Entry.setValue(java.lang.Object)