org.jdesktop.application

Class ApplicationContext

java.lang.Object

org.jdesktop.application.AbstractBean

org.jdesktop.application.ApplicationContext

public class ApplicationContext
extends AbstractBean

A singleton that manages shared objects, like actions, resources, and tasks, for Applications.

Applications use ApplicationContext, via Application.getContext(), to access global values and services. The majority of the Swing Application Framework API can be accessed through ApplicationContext.

Author:

Hans Muller (Hans.Muller@Sun.COM)

See Also:

Application

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ApplicationContext()

Method Summary

Methods

Modifier and Type	Method and Description
void	addTaskService(TaskService taskService) Register a new TaskService with the application.
ActionManager	getActionManager() Return this application's ActionManager.
ApplicationActionMap	getActionMap() Returns the shared ActionMap chain for the entire Application.
ApplicationActionMap	getActionMap(Class actionsClass, Object actionsObject) Returns the ApplicationActionMap chain for the specified actions class and target object.
ApplicationActionMap	getActionMap(Object actionsObject) Defined as getActionMap(actionsObject.getClass(), actionsObject).
Application	getApplication() The Application singleton, or null if launch hasn't been called yet.
Class	getApplicationClass() Returns the application's class or null if the application hasn't been launched and this property hasn't been set.
Clipboard	getClipboard() Return a shared Clipboard.
JComponent	getFocusOwner() Returns the application's focus owner.
LocalStorage	getLocalStorage() The shared LocalStorage object.
ResourceManager	getResourceManager() The application's ResourceManager provides read-only cached access to resources in ResourceBundles via the ResourceMap class.
ResourceMap	getResourceMap() Returns the chain of ResourceMaps that's shared by the entire application, beginning with the one defined for the Application class, i.e. the value of the applicationClass property.
ResourceMap	getResourceMap(Class cls) Returns a chain of two or more ResourceMaps.
ResourceMap	getResourceMap(Class startClass, Class stopClass) Returns a chain of two or more ResourceMaps.
SessionStorage	getSessionStorage() The shared SessionStorage object.
TaskMonitor	getTaskMonitor() Returns a shared TaskMonitor object.
TaskService	getTaskService() Returns the default TaskService, i.e. the one named "default": return getTaskService("default").
TaskService	getTaskService(String name) Look up a task service by name.
List<TaskService>	getTaskServices() Returns a read-only view of the complete list of TaskServices.
void	removeTaskService(TaskService taskService) Unregister a previously registered TaskService.
protected void	setActionManager(ActionManager actionManager) Change this application's ActionManager.
void	setApplicationClass(Class applicationClass) Called by Application.launch() to record the application's class.
protected void	setLocalStorage(LocalStorage localStorage) The shared LocalStorage object.
protected void	setResourceManager(ResourceManager resourceManager) Change this application's ResourceManager.
protected void	setSessionStorage(SessionStorage sessionStorage) The shared SessionStorage object.

Methods inherited from class org.jdesktop.application.AbstractBean

addPropertyChangeListener, addPropertyChangeListener, firePropertyChange, firePropertyChange, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Constructor Detail

ApplicationContext

protected ApplicationContext()

Method Detail

getApplicationClass

public final Class getApplicationClass()

Returns the application's class or null if the application hasn't been launched and this property hasn't been set. Once the application has been launched, the value returned by this method is the same as getApplication().getClass().

Returns:

the application's class or null

See Also:

setApplicationClass(java.lang.Class), getApplication()

setApplicationClass

public final void setApplicationClass(Class applicationClass)

Called by Application.launch() to record the application's class.

This method is only intended for testing, or design time configuration. Normal applications shouldn't need to call it directly.

Parameters:

applicationClass -

See Also:

getApplicationClass()

getApplication

public final Application getApplication()

The Application singleton, or null if launch hasn't been called yet.

Returns:

the launched Application singleton.

See Also:

Application.launch(java.lang.Class<T>, java.lang.String[])

getResourceManager

public final ResourceManager getResourceManager()

The application's ResourceManager provides read-only cached access to resources in ResourceBundles via the ResourceMap class.

Returns:

this application's ResourceManager.

See Also:

getResourceMap(Class, Class)

setResourceManager

protected void setResourceManager(ResourceManager resourceManager)

Change this application's ResourceManager. An ApplicationContext subclass that wanted to fundamentally change the way ResourceMaps were created and cached could replace this property in its constructor.

Throws an IllegalArgumentException if resourceManager is null.

Parameters:

resourceManager - the new value of the resourceManager property.

See Also:

getResourceMap(Class, Class), getResourceManager()

getResourceMap

public final ResourceMap getResourceMap(Class cls)

Returns a chain of two or more ResourceMaps. The first encapsulates the ResourceBundles defined for the specified class, and its parent encapsulates the ResourceBundles defined for the entire application.

This is just a convenience method that calls ResourceManager.getResourceMap(). It's defined as:

 return getResourceManager().getResourceMap(cls, cls);
 

Parameters:

cls - the class that defines the location of ResourceBundles

Returns:

a ResourceMap that contains resources loaded from ResourceBundles found in the resources subpackage of the specified class's package.

See Also:

ResourceManager.getResourceMap(Class)

getResourceMap

public final ResourceMap getResourceMap(Class startClass,
                         Class stopClass)

Returns a chain of two or more ResourceMaps. The first encapsulates the ResourceBundles defined for the all of the classes between startClass and stopClass inclusive. It's parent encapsulates the ResourceBundles defined for the entire application.

This is just a convenience method that calls ResourceManager.getResourceMap(). It's defined as:

 return getResourceManager().getResourceMap(startClass, stopClass);
 

Parameters:

startClass - the first class whose ResourceBundles will be included

stopClass - the last class whose ResourceBundles will be included

Returns:

a ResourceMap that contains resources loaded from ResourceBundles found in the resources subpackage of the specified class's package.

See Also:

ResourceManager.getResourceMap(Class, Class)

getResourceMap

public final ResourceMap getResourceMap()

Returns the chain of ResourceMaps that's shared by the entire application, beginning with the one defined for the Application class, i.e. the value of the applicationClass property.

This is just a convenience method that calls ResourceManager.getResourceMap(). It's defined as:

 return getResourceManager().getResourceMap();
 

Returns:

the Application's ResourceMap

See Also:

ResourceManager.getResourceMap(), getApplicationClass()

getActionManager

public final ActionManager getActionManager()

Return this application's ActionManager.

Returns:

this application's ActionManager.

See Also:

getActionMap(Object)

setActionManager

protected void setActionManager(ActionManager actionManager)

Change this application's ActionManager. An ApplicationContext subclass that wanted to fundamentally change the way ActionManagers were created and cached could replace this property in its constructor.

Throws an IllegalArgumentException if actionManager is null.

Parameters:

actionManager - the new value of the actionManager property.

See Also:

getActionManager(), getActionMap(Object)

getActionMap

public final ApplicationActionMap getActionMap()

Returns the shared ActionMap chain for the entire Application.

This is just a convenience method that calls ActionManager.getActionMap(). It's defined as:

 return getActionManager().getActionMap()
 

Returns:

the ActionMap chain for the entire Application.

See Also:

ActionManager.getActionMap()

getActionMap

public final ApplicationActionMap getActionMap(Class actionsClass,
                                Object actionsObject)

Returns the ApplicationActionMap chain for the specified actions class and target object.

This is just a convenience method that calls ActionManager.getActionMap(Class, Object). It's defined as:

 return getActionManager().getActionMap(actionsClass, actionsObject)
 

Parameters:

actionsClass -

actionsObject -

Returns:

the ActionMap chain for the entire Application.

See Also:

ActionManager.getActionMap(Class, Object)

getActionMap

public final ApplicationActionMap getActionMap(Object actionsObject)

Defined as getActionMap(actionsObject.getClass(), actionsObject).

Parameters:

actionsObject -

Returns:

the ActionMap for the specified object

See Also:

getActionMap(Class, Object)

getLocalStorage

public final LocalStorage getLocalStorage()

The shared LocalStorage object.

Returns:

the shared LocalStorage object.

setLocalStorage

protected void setLocalStorage(LocalStorage localStorage)

The shared LocalStorage object.

Parameters:

localStorage - the shared LocalStorage object.

getSessionStorage

public final SessionStorage getSessionStorage()

The shared SessionStorage object.

Returns:

the shared SessionStorage object.

setSessionStorage

protected void setSessionStorage(SessionStorage sessionStorage)

The shared SessionStorage object.

Parameters:

sessionStorage - the shared SessionStorage object.

getClipboard

public Clipboard getClipboard()

Return a shared Clipboard.

Returns:

A shared Clipboard.

getFocusOwner

public JComponent getFocusOwner()

Returns the application's focus owner.

Returns:

The application's focus owner.

addTaskService

public void addTaskService(TaskService taskService)

Register a new TaskService with the application. The task service then be retrieved by name via getTaskService(String).

Parameters:

taskService - Task service to register

removeTaskService

public void removeTaskService(TaskService taskService)

Unregister a previously registered TaskService. The task service is not shut down.

Parameters:

taskService - TaskService to unregister

getTaskService

public TaskService getTaskService(String name)

Look up a task service by name.

Parameters:

name - Name of the task service to retrieve.

Returns:

Task service found, or null if no service of that name found

getTaskService

public final TaskService getTaskService()

Returns the default TaskService, i.e. the one named "default": return getTaskService("default"). The ApplicationAction actionPerformed method executes background Tasks on the default TaskService. Application's can launch Tasks in the same way, e.g.

 Application.getInstance().getContext().getTaskService().execute(myTask);
 

Returns:

the default TaskService.

See Also:

getTaskService(String)

getTaskServices

public List<TaskService> getTaskServices()

Returns a read-only view of the complete list of TaskServices.

Returns:

a list of all of the TaskServices.

See Also:

addTaskService(org.jdesktop.application.TaskService), removeTaskService(org.jdesktop.application.TaskService)

getTaskMonitor

public final TaskMonitor getTaskMonitor()

Returns a shared TaskMonitor object. Most applications only need one TaskMonitor for the sake of status bars and other status indicators.

Returns:

the shared TaskMonitor object.