If the composite editor is editing a Collection, this method solves the problem of having no sub-Editors available to examine for an empty Collection. Starting from a root editor type, the editor driver generator will build a representation of the editors tree using reflection: Marco Jakob 10 An interface that the view should implement. At runtime, if any of these sub-editors is null, it will simply be ignored. Because the driver is stateful, driver instances must be paired with editor hierarchy instances.
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LeafValueEditor is used for non-object, immutable, or any type that the Editor framework should not descend into.
General workflow Instantiate and initialize the Editors. As Thomas Broyer puts it in his answer to another Editor question: An approach similar to what was used in an earlier version of the Expenses sample worked for me: Editors are a graph of objects used to edit objects.
If the value will affect with sub-editors are ediror are not provided to the framework, they should be editpr or nullified at this time. The SimpleBeanEditorDriver provides just that: Sign up using Email and Password.
Benjamin M 8, 15 73 Can I use Editors to view read-only data? Editor delegates Every Editor has a peer EditorDelegate that provides framework-related services to the Twt.
If the Widget contains multiple sub-Editors is a simple, static hierarchy, use the Editor interface. But before you edit an object, you’ll first have to initialize the editor driver with the actual editor instance to be used.
The kind of objects that you can edit depends on the editor driver you use, but in any case they’ll be bean-like objects.
During a flush, editors have an opportunity to report errors that will be available as EditorError s. There are several kinds of editors:.
GWT 2.1 Editors
Sub-Editors may be null. Quickstart Import the com. The wildcard is used so that the presenter does not need to know the concrete view implementation:. This makes the Editor framework a very good friend of UiBinder! The Editor framework uses a Flow Synchronization pattern: SimpleBeanEditorDriver can be used with any bean-like object. Whether or not these editors are displayed all at the same time or sequentially is a user experience issue.
SimpleBeanEditorDriver (GWT Javadoc)
If You’ve done some improvements on this please let me know. Similarly to UiBinderyou’ll declare an interface extending one of these with generic parameters. A field or method will be treated as an editor if its type implements the Editor marker interface or one of its subinterfaces, see below or the IsEditor interface.
All of these core Editor sub-interface can be mixed at will.
GWT WYSIWYG Editor ()
As Thomas Broyer puts it in his answer to another Editor question:. Found some additional comments on GWT Editors.
In addition to the Editor interface, the Editor framework looks for these specific interfaces to provide basic building blocks for more complicated Editor behaviors. The wildcard is used so that the presenter does not need to know the concrete view implementation: Editor subtypes In addition to the Editor interface, the Editor framework looks for these gwg interfaces to provide basic building blocks for more complicated Editor behaviors.
GWT WYSIWYG Editor
An approach similar to what was used in an earlier version of the Expenses sample worked for me:.