com.vaadin.flow.component.grid.editor

Class EditorRenderer<T>

java.lang.Object

com.vaadin.flow.data.renderer.Renderer<T>

com.vaadin.flow.component.grid.editor.EditorRenderer<T>

Type Parameters:

T - the type of the object being processed

All Implemented Interfaces:

DataGenerator<T>, Serializable

public class EditorRenderer<T>
extends Renderer<T>
implements DataGenerator<T>

Renderer and DataGenerator used by Grid.Column to control the state of the editor components.

Components are created during the generateData(Object, JsonObject) calls, and the proper data is sent to the client-side to be rendered.

Author:

Vaadin Ltd.

See Also:

Grid.Column.setEditorComponent(Component), Grid.Column.setEditorComponent(SerializableFunction), Serialized Form

Constructor Summary

Constructors

Constructor and Description
EditorRenderer(Editor<T> editor, String columnInternalId) Creates a new renderer for a specific column.

Method Summary

Modifier and Type	Method and Description
void	generateData(T item, elemental.json.JsonObject jsonObject) Adds custom data for the given item to its serialized JsonObject representation.
void	refreshData(T item) Informs the DataGenerator that a data object has been updated.
Rendering<T>	render(Element container, DataKeyMapper<T> keyMapper, Element contentTemplate) Handles the rendering of the model objects by using the given <template> element in the given container.
void	setComponentFunction(SerializableFunction<T,? extends Component> componentFunction) Sets the function that creates components to be used as editors for the column.

Methods inherited from class com.vaadin.flow.data.renderer.Renderer

getEventHandlers, getValueProviders, render, setEventHandler, setProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.flow.data.provider.DataGenerator

destroyAllData, destroyData

Constructor Detail

EditorRenderer

public EditorRenderer(Editor<T> editor,
                      String columnInternalId)

Creates a new renderer for a specific column.

Parameters:

editor - the Grid's editor

columnInternalId - the internal Id of the column that uses this data generator

Method Detail

setComponentFunction

public void setComponentFunction(SerializableFunction<T,? extends Component> componentFunction)

Sets the function that creates components to be used as editors for the column. When set to null, an empty component is used instead.

Parameters:

componentFunction - the function that generates editor components

generateData

public void generateData(T item,
                         elemental.json.JsonObject jsonObject)

Description copied from interface: DataGenerator

Adds custom data for the given item to its serialized JsonObject representation. This JSON object will be sent to client-side DataProvider.

Specified by:

generateData in interface DataGenerator<T>

Parameters:

item - the data item being serialized

jsonObject - the JSON object being sent to the client

refreshData

public void refreshData(T item)

Description copied from interface: DataGenerator

Informs the DataGenerator that a data object has been updated. This method should update any unneeded information stored for given item.

Specified by:

refreshData in interface DataGenerator<T>

Parameters:

item - the updated item

render

public Rendering<T> render(Element container,
                           DataKeyMapper<T> keyMapper,
                           Element contentTemplate)

Description copied from class: Renderer

Handles the rendering of the model objects by using the given <template> element in the given container.

Subclasses of Renderer usually override this method to provide additional features.

Overrides:

render in class Renderer<T>

Parameters:

container - the element in which the template will be attached to, not null

keyMapper - mapper used internally to fetch items by key and to provide keys for given items. It is required when either event handlers or DataGenerator are supported

contentTemplate - the <template> element to be used for rendering in the container, not null

Returns:

the context of the rendering, that can be used by the components to provide extra customization