net.sf.doolin.gui.display
Class AbstractContextPropertyDisplayStateHandler<S>

java.lang.Object
  net.sf.doolin.gui.display.AbstractDisplayStateHandler
      net.sf.doolin.gui.display.AbstractContextPropertyDisplayStateHandler<S>

Type Parameters:

S - Type of the property to convert to a display state

All Implemented Interfaces:

DisplayStateHandler

Direct Known Subclasses:

AdaptedContextPropertyDisplayStateHandler

public abstract class AbstractContextPropertyDisplayStateHandler<S>
extends AbstractDisplayStateHandler

This display state handler is based on a property of the context. This property is adapted to a display state using an adapter.

Author:

Damien Coraboeuf

Constructor Summary

AbstractContextPropertyDisplayStateHandler()
Default constructor

AbstractContextPropertyDisplayStateHandler(String propertyPath)
Constructor.

Method Summary

DisplayState	getDisplayState(ActionContext actionContext) Gets the current DisplayState for the given action context
protected abstract DisplayState	getDisplayState(S property) Computes the display state from the given property value
String	getPropertyPath() Gets the property path.
void	setPropertyPath(String propertyPath) Sets the property path.
void	subscribe(ActionContext actionContext, Runnable task) Subscribes a task that is executed each time this display state handler changes its state.

Methods inherited from class net.sf.doolin.gui.display.AbstractDisplayStateHandler

connect, connect

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractContextPropertyDisplayStateHandler

public AbstractContextPropertyDisplayStateHandler()

Default constructor

AbstractContextPropertyDisplayStateHandler

public AbstractContextPropertyDisplayStateHandler(String propertyPath)

Constructor.

Parameters:

propertyPath - Path to the property of the context to take into account

Method Detail

getDisplayState

public DisplayState getDisplayState(ActionContext actionContext)

Description copied from interface: DisplayStateHandler

Gets the current DisplayState for the given action context

Parameters:

actionContext - Action context.

Returns:

Display state

getDisplayState

protected abstract DisplayState getDisplayState(S property)

Computes the display state from the given property value

Parameters:

property - Property value

Returns:

Display state

getPropertyPath

public String getPropertyPath()

Gets the property path.

Returns:

the property path

setPropertyPath

public void setPropertyPath(String propertyPath)

Sets the property path.

Parameters:

propertyPath - the new property path

subscribe

public void subscribe(ActionContext actionContext,
                      Runnable task)

Description copied from interface: DisplayStateHandler

Subscribes a task that is executed each time this display state handler changes its state.

Parameters:

actionContext - Action context for this display state handler

task - Task to run each time the state change