net.sf.japaki.beans
Class ConstantProperty<V>

java.lang.Object
  net.sf.japaki.beans.ConstantProperty<V>

All Implemented Interfaces:

Property<Object,V>

public class ConstantProperty<V>
extends Object
implements Property<Object,V>

A property that always returns the same value instead of retrieving it from a bean.

Method Summary

Class<V>	getType() Returns the class of the stored value.
V	getValue(Object bean) Returns the stored value.
static <V> Property<Object,V>	newInstance(V value) Constructs a constant property using the given value.
void	setValue(Object bean, V value) Does nothing.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

newInstance

public static <V> Property<Object,V> newInstance(V value)

Constructs a constant property using the given value.

Parameters:

value - a constant. null is allowed.

Returns:

a constant property using the given value

getValue

public V getValue(Object bean)

Returns the stored value.

Specified by:

getValue in interface Property<Object,V>

Parameters:

bean - ignored

Returns:

a constant value

setValue

public void setValue(Object bean,
                     V value)

Does nothing.

Specified by:

setValue in interface Property<Object,V>

Parameters:

bean - ignored

value - ignored

Throws:

IllegalArgumentException - if the specified value does not equal the constant

getType

public Class<V> getType()

Returns the class of the stored value.

Specified by:

getType in interface Property<Object,V>

Returns:

the class of the stored value