Type Parameters:

T - the row data type
```
public interface EditorHandler<T>
```
An interface for binding widgets and data to the grid row editor. Used by the editor to support different row types, data sources and custom data binding mechanisms.

Since:

7.4

Author:

Vaadin Ltd

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface EditorHandler.EditorRequest<T>
A request class passed as a parameter to the editor handler methods.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`bind(EditorHandler.EditorRequest<T> request)`	Binds row data to the editor widgets.
`void`	`cancel(EditorHandler.EditorRequest<T> request, boolean afterBeingSaved)`	Called by the editor when editing is cancelled.
`void`	`checkValidity()`	Called by the editor's event handler when editing is shifting to a new row in order to check the validity of the binder's value.
`com.google.gwt.user.client.ui.Widget`	`getWidget(Grid.Column<?,T> column)`	Returns a widget instance that is used to edit the values in the given column.
`void`	`save(EditorHandler.EditorRequest<T> request)`	Commits changes in the currently active edit to the data source.

- Method Detail
  - bind
```
void bind(EditorHandler.EditorRequest<T> request)
```
    Binds row data to the editor widgets. Called by the editor when it is opened for editing.
    The implementation must call either EditorHandler.EditorRequest.success() or EditorHandler.EditorRequest.failure(String, Collection) to signal a successful or a failed (respectively) bind action.
    
    Parameters:
    
    request - the data binding request
    
    See Also:
    
    Grid.editRow(int)
  - cancel
```
void cancel(EditorHandler.EditorRequest<T> request,
            boolean afterBeingSaved)
```
    Called by the editor when editing is cancelled. This method may have an empty implementation in case no special processing is required.
    In contrast to bind(EditorRequest) and save(EditorRequest), any calls to EditorHandler.EditorRequest.success() or EditorHandler.EditorRequest.failure(String, Collection) have no effect on the outcome of the cancel action. The editor is already closed when this method is called.
    
    Parameters:
    
    request - the cancel request
    
    afterBeingSaved - if true then this method is called to close editor after save action, otherwise it represents a cancel action
    
    See Also:
    
    Grid.cancelEditor()
  - save
```
void save(EditorHandler.EditorRequest<T> request)
```
    Commits changes in the currently active edit to the data source. Called by the editor when changes are saved.
    The implementation must call either EditorHandler.EditorRequest.success() or EditorRequest#fail() to signal a successful or a failed (respectively) save action.
    
    Parameters:
    
    request - the save request
    
    See Also:
    
    Grid.saveEditor()
  - getWidget
```
com.google.gwt.user.client.ui.Widget getWidget(Grid.Column<?,T> column)
```
    Returns a widget instance that is used to edit the values in the given column. A null return value means the column is not editable.
    
    Parameters:
    
    column - the column whose values should be edited
    
    Returns:
    
    the editor widget for the column or null if the column is not editable
  - checkValidity
```
void checkValidity()
```
    Called by the editor's event handler when editing is shifting to a new row in order to check the validity of the binder's value.

Interface EditorHandler<T>

Nested Class Summary

Method Summary

Method Detail

bind

cancel

save

getWidget

checkValidity