org.zaval.lw
Interface LwEditorProvider

All Known Implementing Classes:

LwDefEditors

public interface LwEditorProvider

This interface is used to provide an editor component for the specified object and the specified value. For example, tree view component uses the interface to define editor components to edit its items.

Method Summary
java.lang.Object	fetchEditedValue(java.lang.Object data, LwComponent c)           Fetches the value from the editor component of the specified edited object.
LwComponent	getEditor(LwComponent src, java.lang.Object data)           Gets the editor component for the specified component and the given data model value.
boolean	shouldStartEdit(java.lang.Object src, LwVCLEvent e)           Tests if the specified event should perform editing process for the specified model value.

 

Method Detail

getEditor

public LwComponent getEditor(LwComponent src,
                             java.lang.Object data)

Gets the editor component for the specified component and the given data model value. The method returns null if there is no any editor for the given object and its model value. In this case the editing process will not be started.

Parameters:

src - the specified component.

data - the specified data model value.

Returns:

an editor component.

fetchEditedValue

public java.lang.Object fetchEditedValue(java.lang.Object data,
                                         LwComponent c)

Fetches the value from the editor component of the specified edited object. The returned value will be used to update appropriate data model value.

Parameters:

data - the specified model value.

c - the specified editor component that has been used to edit the object data model value.

Returns:

a value to update the data model.

shouldStartEdit

public boolean shouldStartEdit(java.lang.Object src,
                               LwVCLEvent e)

Tests if the specified event should perform editing process for the specified model value.

Parameters:

src - the specified model value.

e - the specified event.

Returns:

true if the editing process should be performed; otherwise false.