com.vaadin.flow.data.renderer

Class RendererUtil

java.lang.Object

com.vaadin.flow.data.renderer.RendererUtil

public class RendererUtil
extends Object

Contains helper methods to register events triggered by rendered templates.

Used internally by components that support TemplateRenderer.

Since:

1.0.

Author:

Vaadin Ltd

Method Summary

Modifier and Type	Method and Description
static <T> void	registerEventHandlers(Renderer<T> renderer, Element contentTemplate, Element templateDataHost, ValueProvider<String,T> keyMapper) Registers the event handlers associated to a TemplateRenderer, if any.

Methods inherited from class java.lang.Object

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

Method Detail

registerEventHandlers

public static <T> void registerEventHandlers(Renderer<T> renderer,
                                             Element contentTemplate,
                                             Element templateDataHost,
                                             ValueProvider<String,T> keyMapper)

Registers the event handlers associated to a TemplateRenderer, if any. The consumers returned by Renderer.getEventHandlers() are processed and properly configured to trigger messages from the client to the server, so event handlers can catch the events and execute custom logic.

Type Parameters:

T - the type of the renderer and the associated keyMapper

Parameters:

renderer - the TemplateRenderer to be evaluated

contentTemplate - the <template> element that contains the children that fire events

templateDataHost - the data host of the events - typically the parent of the contentTemplate, but not necessarily

keyMapper - a value provider that knows how to return items by a given key