Package com.bc.ceres.swing.binding

Class ComponentAdapter

java.lang.Object

com.bc.ceres.swing.binding.ComponentAdapter

public abstract class ComponentAdapter
extends Object

A component adapter provides the GUI components used to edit a bound property value.

Clients may derive their own component adapters by implementing this abstract class.

The actual binding is established by calling BindingContext.bind(String, ComponentAdapter). The returned binding may be undone later by calling BindingContext.unbind(Binding).

Since:

Ceres 0.6

Version:

$Revision$ $Date$

Constructor Summary

Constructors

Constructor	Description
ComponentAdapter()

Method Summary

Modifier and Type	Method	Description
abstract void	adjustComponents()	Called by the framework either if a binding is established by calling BindingContext.bind(String, ComponentAdapter), if BindingContext.adjustComponents() is called, or if a property-change event occurs in the associated PropertyContainer of the BindingContext.
abstract void	bindComponents()	Called by the framework in order to bind the GUI components to the bound property.
Binding	getBinding()	Gets the binding which is using this adapter.
abstract JComponent[]	getComponents()	Gets the components participating in the binding.
final void	setBinding(Binding binding)	Sets the binding which is using this adapter.
abstract void	unbindComponents()	Called by the framework in order to unbind the GUI components from the bound property.

Methods inherited from class java.lang.Object

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

Constructor Details

ComponentAdapter

public ComponentAdapter()

Method Details

getBinding

public Binding getBinding()

Gets the binding which is using this adapter.

Returns:

The binding.

setBinding

public final void setBinding(Binding binding)

Sets the binding which is using this adapter.

Clients shall never call this method directly, it is called by the framework.

Parameters:

binding - The binding.

Throws:

IllegalStateException - if the binding has already been set.

getComponents

public abstract JComponent[] getComponents()

Gets the components participating in the binding.

Returns:

The array of components. Must not be empty.

bindComponents

public abstract void bindComponents()

Called by the framework in order to bind the GUI components to the bound property.

The frameworks called this method immediately after setBinding(Binding) has been called.

Most implementations will register a change listener in the editor component which convert the input value and set the bound property by calling getBinding().setPropertyValue(value).

See Also:

• adjustComponents()
• unbindComponents()

unbindComponents

public abstract void unbindComponents()

Called by the framework in order to unbind the GUI components from the bound property.

Most implementations will deregister any registered change listeners from the editor component.

See Also:

• bindComponents()
• adjustComponents()

adjustComponents

public abstract void adjustComponents()

Called by the framework either

1. if a binding is established by calling BindingContext.bind(String, ComponentAdapter),
2. if BindingContext.adjustComponents() is called, or
3. if a property-change event occurs in the associated PropertyContainer of the BindingContext.

Most implementations adjusts the editor component with the value retrieved by getBinding().getPropertyValue(). Note that changes to the UI component shall be made on the EDT. Consider using SwingUtilities.invokeLater().

See Also:

• bindComponents()
• unbindComponents()