net.sf.japaki.beans
Interface Property<B,V>

All Known Implementing Classes:

AbstractGenericBean.GenericProperty, ArrayProperty, ConstantProperty, ReflectionProperty, SelfProperty, TransformProperty

public interface Property<B,V>

A property contains information about how to store and retrieve a data item from another object - the bean.

Method Summary

Class<V>	getType() Returns the type of this property, that is the return type of the getValue method.
V	getValue(B bean) Retrieves the value of this property from the specified bean.
void	setValue(B bean, V value) Stores the value in the property specified by this object in the specified bean.

Method Detail

getValue

V getValue(B bean)

Retrieves the value of this property from the specified bean.

Parameters:

bean - the bean from which to read the value

Returns:

the found value

Throws:

ClassCastException - if the class of the bean cannot be handled by this property (typically if generics rules are violated)

NullPointerException - if bean is null.

IllegalArgumentException - if the bean cannot be handled by this property

setValue

void setValue(B bean,
              V value)

Stores the value in the property specified by this object in the specified bean.

Parameters:

bean - the bean in which to store the value

value - the new value of the property

Throws:

UnsupportedOperationException - if the property is read-only

ClassCastException - if the class of the specified value prevents it from being stored (typically if generics rules are violated)

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

IllegalArgumentException - if the specified value is not valid for this property.

IllegalStateException - if the value cannot be set at this time

getType

Class<V> getType()

Returns the type of this property, that is the return type of the getValue method. This method is optional.

Returns:

the type of this property or null if not specified.