Render an HTML "a" anchor element. The value of the component is rendered as the anchor text and the outcome of the component is used to determine the target URL rendered in the "href" attribute. Execute the Algorithm to obtain the URL to which the user-agent should issue a GET request when clicked.
Any child UIParameter
components
whose disable
property is false
are appended to the String to be
output as the value of the "href" attribute as query parameters before
rendering. The entire "href" string must be processed by a call to
the encodeResourceURL()
method of the
ExternalContext
. The name of the UIParameter
goes on the left hand side, and the value of the
UIParameter
on the right hand side. The name and the value
must be URLEncoded. Note that
the required url encoding is handled by
ResponseWrter.writeAttribute()
. Each
UIParameter
instance is separated by an ampersand, as
dictated in the URL spec. If the "fragment" attribute is specified, the
value will be included at the end of the resulting URL preceded by a
hash mark. If the "styleClass" attribute is specified, render its value
as the value of the "class" attribute.
If the "id" attribute is specified, follow the same steps as mentioned in the "General Notes on Encoding" regarding the "id" attribute for UIInput components. If the "disabled" attribute is specified, do not render the HTML "a" anchor element or the "href" element. Instead, render a "span" element. If the "styleClass" attribute is specified, render its value as the value of the "class" attribute on the "span". Render any ignored-by-renderer attributes on the "span".
To support entering flows that are defined by both a defining
document id and a flow id, add a component attribute to this
component whose name is given by the value of the symbolic
constant
javax.faces.event.ActionListener.TO_FLOW_DOCUMENT_ID_ATTR_NAME
,
and whose value is the defining document id. For example, when
using this component in a facelet page, the following markup
would cause such an attribute to be added.
<h:link id="start_a" value="enter flow-a" outcome="flow-a">
<f:attribute name="to-flow-document-id" value="unique"/>
</h:link>
This renderer is responsible for rendering its children.
Attributes with a ignored-by-renderer
value of
true
are not interpreted by the renderer and are conveyed
straight to the rendered markup, without checking for validity. Attributes with a
ignored-by-renderer
value of false
are interpreted
by the renderer, and may or may not be checked for validity by the renderer.
Attributes | |||||
attribute-name | ignored-by-renderer | attribute-class | description | default-value | |
---|---|---|---|---|---|
accesskey
|
true | java.lang.String |
Access key that, when pressed, transfers focus to this element. | undefined | |
charset
|
true | java.lang.String |
The character encoding of the resource designated by this hyperlink. | undefined | |
coords
|
true | java.lang.String |
The position and shape of the hot spot on the screen (for use in client-side image maps). | undefined | |
dir
|
true | java.lang.String |
Direction indication for text that does not inherit directionality. Valid values are "LTR" (left-to-right) and "RTL" (right-to-left). These attributes are case sensitive when rendering to XHTML, so care must be taken to have the correct case. | undefined | |
disableClientWindow
|
false | java.lang.Boolean |
Disable appending the |
false | |
disabled
|
false | boolean |
Flag indicating that this element must never receive focus or be included in a subsequent submit. | undefined | |
fragment
|
false | java.lang.String |
The identifier of the page fragment which should be brought into focus when the target page is rendered. The value of this attribute is appended to the end of target URL following a hash (#) mark. This notation is part of the standard URL syntax. | undefined | |
hreflang
|
true | java.lang.String |
The language code of the resource designated by this hyperlink. | undefined | |
lang
|
true | java.lang.String |
Code describing the language used in the generated markup for this component. | undefined | |
onblur
|
true | java.lang.String |
Javascript code executed when this element loses focus. | undefined | |
onclick
|
true | java.lang.String |
Javascript code executed when a pointer button is clicked over this element. | undefined | |
ondblclick
|
true | java.lang.String |
Javascript code executed when a pointer button is double clicked over this element. | undefined | |
onfocus
|
true | java.lang.String |
Javascript code executed when this element receives focus. | undefined | |
onkeydown
|
true | java.lang.String |
Javascript code executed when a key is pressed down over this element. | undefined | |
onkeypress
|
true | java.lang.String |
Javascript code executed when a key is pressed and released over this element. | undefined | |
onkeyup
|
true | java.lang.String |
Javascript code executed when a key is released over this element. | undefined | |
onmousedown
|
true | java.lang.String |
Javascript code executed when a pointer button is pressed down over this element. | undefined | |
onmousemove
|
true | java.lang.String |
Javascript code executed when a pointer button is moved within this element. | undefined | |
onmouseout
|
true | java.lang.String |
Javascript code executed when a pointer button is moved away from this element. | undefined | |
onmouseover
|
true | java.lang.String |
Javascript code executed when a pointer button is moved onto this element. | undefined | |
onmouseup
|
true | java.lang.String |
Javascript code executed when a pointer button is released over this element. | undefined | |
rel
|
true | java.lang.String |
The relationship from the current document to the anchor specified by this hyperlink. The value of this attribute is a space-separated list of link types. | undefined | |
rev
|
true | java.lang.String |
A reverse link from the anchor specified by this hyperlink to the current document. The value of this attribute is a space-separated list of link types. | undefined | |
role
|
true | java.lang.String |
Per the WAI-ARIA spec and its relationship to HTML5 (Section title ARIA Role Attriubute), every HTML element may have a "role" attribute whose value must be passed through unmodified on the element on which it is declared in the final rendered markup. The attribute, if specified, must have a value that is a string literal that is, or an EL Expression that evaluates to, a set of space-separated tokens representing the various WAI-ARIA roles that the element belongs to. It is the page author's responsibility to ensure that the user agent is capable of correctly interpreting the value of this attribute. |
undefined | |
shape
|
true | java.lang.String |
The shape of the hot spot on the screen (for use in client-side image maps). Valid values are: default (entire region); rect (rectangular region); circle (circular region); and poly (polygonal region). | undefined | |
style
|
true | java.lang.String |
CSS style(s) to be applied when this component is rendered. | undefined | |
styleClass
|
false | java.lang.String |
Space-separated list of CSS style class(es) to be applied when this element is rendered. This value must be passed through as the "class" attribute on generated markup. | undefined | |
tabindex
|
true | java.lang.String |
Position of this element in the tabbing order for the current document. This value must be an integer between 0 and 32767. | undefined | |
target
|
false | java.lang.String |
Name of a frame where the resource retrieved via this hyperlink is to be displayed. | undefined | |
title
|
true | java.lang.String |
Advisory title information about markup elements generated for this component. | undefined | |
type
|
true | java.lang.String |
The content type of the resource designated by this hyperlink. | undefined |