Legacy Document
Important: The information in this document is obsolete and should not be used for new development.
NSController
| Inherits from | |
| Implements | |
| Package | com.apple.cocoa.application |
| Availability | Available in Mac OS X v10.3 and later. |
| Companion guide |
Overview
NSController is an abstract class that implements the base functionality required by the Controller Layer.
Tasks
Constructors
Managing Editing
Binding
Constructors
NSController
Creates and returns an empty NSController.
public NSController()
Availability
- Available in Mac OS X v10.3 and later.
Instance Methods
bind
Creates a relationship between the receiver’s binding and the property of observableController specified by keyPath.
public void bind(String binding, Object observableController, String keyPath, NSDictionary options)
Discussion
The binding is the key path for a property of the receiver previously exposed. The options dictionary is optional. If present, it contains placeholder objects or an NSValueTransformer identifier as described in “Constants.”
Availability
- Available in Mac OS X v10.4 and later.
commitEditing
Causes the receiver to attempt to commit any pending edits, returning true if successful or no edits where pending.
public boolean commitEditing()
Discussion
A commit is denied if the receiver fails to apply the changes to the model object, perhaps due to a validation error.
Availability
- Available in Mac OS X v10.3 and later.
See Also
discardEditing
Discards any pending changes by registered editors.
public void discardEditing()
Availability
- Available in Mac OS X v10.3 and later.
See Also
isEditing
public boolean isEditing()
Returns true if there are any editors currently registered with the receiver, false otherwise.
- (BOOL)isEditing
Availability
- Available in Mac OS X v10.3 and later.
objectDidBeginEditing
Invoked to inform the receiver that editor has uncommitted changes that can affect the receiver.
public void objectDidBeginEditing(Object editor)
Availability
- Available in Mac OS X v10.3 and later.
See Also
objectDidEndEditing
Invoked to inform the receiver that editor has committed or discarded its changes.
public void objectDidEndEditing(Object editor)
Availability
- Available in Mac OS X v10.3 and later.
See Also
© 1997, 2007 Apple Inc. All Rights Reserved. (Last updated: 2007-02-01)