edu.washington.cs.supple.beanlike
Class BeanlikeValue

java.lang.Object
  edu.washington.cs.supple.rep.values.Variable
      edu.washington.cs.supple.beanlike.BeanlikeValue

All Implemented Interfaces:

java.util.EventListener, java.beans.PropertyChangeListener, ValueBinding

public class BeanlikeValue

extends Variable

implements ValueBinding, java.beans.PropertyChangeListener

BeanlikeValue allows a Supple UI variable to be bound to a beanlike property. The value of the property may be simple (String, Integer, etc.) or complex (i.e. a ValueObject).

Author:

dbc1

Constructor Summary

BeanlikeValue(java.lang.Object beanlike, BeanlikePropertyDescriptor pd, BeanlikeValueDescriptor bvd)
Create a value binding that listens to a beanlike property.

BeanlikeValue(java.lang.Object beanlike, java.lang.String propertyName)
Create a value binding that listens to a beanlike property.

BeanlikeValue(java.lang.Object beanlike, java.lang.String propertyName, BeanlikeValueDescriptor bvd)
Create a value binding that listens to a beanlike property, and binds

Method Summary

java.lang.Object	fromBeanlike(java.lang.Object value) Convert a value from a bean property into a usable value object.
java.lang.Object	getValue() Get the bound value.
java.lang.Class	getValueClass() Get the class of this variable
protected void	postLastListener() Subclasses can use this to implement post-last-listener cleanup.
protected void	preFirstListener() Subclasses can use this to implement pre-first-listener setup.
void	propertyChange(java.beans.PropertyChangeEvent evt)
void	setValue(java.lang.Object value) Set the value of this variable.
java.lang.Object	toBeanlike(java.lang.Object value) Extract the beanlike from an incoming value object.
java.lang.String	toString()

Methods inherited from class edu.washington.cs.supple.rep.values.Variable

addListener, processUpdate, removeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.washington.cs.supple.rep.values.ValueBinding

addListener, removeListener

Constructor Detail

BeanlikeValue

public BeanlikeValue(java.lang.Object beanlike,
                     java.lang.String propertyName)

Create a value binding that listens to a beanlike property.

BeanlikeValue

public BeanlikeValue(java.lang.Object beanlike,
                     java.lang.String propertyName,
                     BeanlikeValueDescriptor bvd)

Create a value binding that listens to a beanlike property, and binds

BeanlikeValue

public BeanlikeValue(java.lang.Object beanlike,
                     BeanlikePropertyDescriptor pd,
                     BeanlikeValueDescriptor bvd)

Create a value binding that listens to a beanlike property.

Method Detail

getValueClass

public java.lang.Class getValueClass()

Description copied from interface: ValueBinding

Get the class of this variable

Specified by:

getValueClass in interface ValueBinding

Returns:

getValue

public java.lang.Object getValue()

Description copied from interface: ValueBinding

Get the bound value.

Specified by:

getValue in interface ValueBinding

Returns:

setValue

public void setValue(java.lang.Object value)

Description copied from interface: ValueBinding

Set the value of this variable.

Specified by:

setValue in interface ValueBinding

Parameters:

value -

preFirstListener

protected void preFirstListener()

Description copied from class: Variable

Subclasses can use this to implement pre-first-listener setup.

Overrides:

preFirstListener in class Variable

postLastListener

protected void postLastListener()

Description copied from class: Variable

Subclasses can use this to implement post-last-listener cleanup.

Overrides:

postLastListener in class Variable

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent evt)

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

fromBeanlike

public java.lang.Object fromBeanlike(java.lang.Object value)

Convert a value from a bean property into a usable value object.

Parameters:

value -

Returns:

toBeanlike

public java.lang.Object toBeanlike(java.lang.Object value)

Extract the beanlike from an incoming value object.

Parameters:

value -

Returns:

toString

public java.lang.String toString()