BaseClientElement (Tapestry API - 5.7.2)乐学网一站式学习平台

java.lang.Object
- org.apache.tapestry5.corelib.base.BaseClientElement

All Implemented Interfaces:

ClientElement

Direct Known Subclasses:

Alerts
```
public abstract class BaseClientElement
extends Object
implements ClientElement
```
Provides support for elements that will optionally render a unique id attribute, but only if it is requested. Subclasses should invoke storeElement(org.apache.tapestry5.dom.Element) when they begin an element that requires an id.

Since:

5.4

Field Summary

Fields
Modifier and Type Field Description

protected JavaScriptSupport javaScriptSupport

protected ComponentResources resources

Constructor Summary

Constructors
Constructor Description

BaseClientElement()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getClientId()`	When invoked the first time (per request), a unique id is assigned and and id attribute added to the element for the component.
`protected void`	`storeElement(Element element)`	Invoked (usually from a `BeginRender` phase method) to assign the element, and clear the clientId (only relevant for components that render in a loop).

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - resources
```
@Inject
protected ComponentResources resources
```
  - javaScriptSupport
```
@Environmental
protected JavaScriptSupport javaScriptSupport
```
- Constructor Detail
  - BaseClientElement
```
public BaseClientElement()
```
- Method Detail
  - storeElement
```
protected void storeElement(Element element)
```
    Invoked (usually from a BeginRender phase method) to assign the element, and clear the clientId (only relevant for components that render in a loop).
    
    Parameters:
    
    element - the element to store
  - getClientId
```
public String getClientId()
```
    When invoked the first time (per request), a unique id is assigned and and id attribute added to the element for the component.
    
    Specified by:
    
    getClientId in interface ClientElement
    
    Returns:
    
    a unique id for the element. This value will be unique for any given rendering of a page. This value is intended for use as the id attribute of the client-side element, and will be used with any DHTML/Ajax related JavaScript.