net.sf.japaki.beans
Class TransformProperty<B,S,V>

java.lang.Object
  net.sf.japaki.beans.TransformProperty<B,S,V>

All Implemented Interfaces:

Property<B,V>

public class TransformProperty<B,S,V>
extends Object
implements Property<B,V>

A property that transforms a value after reading it from the bean.

Method Summary

Class<V>	getType() Returns null.
V	getValue(B bean) Retrieves the value of this property from the specified bean and transforms it with the underlying transformer.
static <B,S,V> Property<B,V>	newInstance(Property<B,S> base, TwoWayTransformer<S,V> transformer) Constructs a new transform property.
void	setValue(B bean, V value) Retransforms the specified value with the underlying transformer and stores it in the specified bean.

Methods inherited from class java.lang.Object

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

Method Detail

newInstance

public static <B,S,V> Property<B,V> newInstance(Property<B,S> base,
                                                TwoWayTransformer<S,V> transformer)

Constructs a new transform property.

Parameters:

base - underlying property

transformer - underlying transformers

Returns:

a new transform property

Throws:

NullPointerException - if any parameter is null.

getValue

public V getValue(B bean)

Retrieves the value of this property from the specified bean and transforms it with the underlying transformer.

Specified by:

getValue in interface Property<B,V>

Parameters:

bean - the bean from which to read the value

Returns:

the transformed value

Throws:

ClassCastException - depending on the underlying property and transformer

NullPointerException - if bean is null.

IllegalArgumentException - depending on the underlying property and transformer

setValue

public void setValue(B bean,
                     V value)

Retransforms the specified value with the underlying transformer and stores it in the specified bean.

Specified by:

setValue in interface Property<B,V>

Parameters:

bean - the bean in which to store the (retransformed) value

value - the value of the property in the target space of the transformation

Throws:

UnsupportedOperationException - if the underlying property is read-only or the transformer is one-way

ClassCastException - depending on the underlying property and transformer

NullPointerException - if bean is null or if the specified value is null and the bean does not permit null values

IllegalArgumentException - depending on the underlying property and transformer

IllegalStateException - depending on the underlying property

getType

public Class<V> getType()

Returns null.

Specified by:

getType in interface Property<B,V>

Returns:

null