html_basic

Tag message

Component Information 
InfoValue
Component Typejakarta.faces.HtmlMessage
Handler ClassNone
Renderer Typejakarta.faces.Message
DescriptionNone
Attributes 
NameRequiredTypeDescription
fortruejakarta.el.ValueExpression
(must evaluate to java.lang.String)
Client identifier of the component for which to display messages.
idfalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
The component identifier for this component. This value must be unique within the closest parent component that is a naming container.
renderedfalsejakarta.el.ValueExpression
(must evaluate to java.lang.Boolean)
Flag indicating whether or not this component should be rendered (during Render Response Phase), or processed on any subsequent form submit. The default value for this property is true.
showDetailfalsejakarta.el.ValueExpression
(must evaluate to java.lang.Boolean)
Flag indicating whether the detail portion of displayed messages should be included. Default value is "true".
showSummaryfalsejakarta.el.ValueExpression
(must evaluate to java.lang.Boolean)
Flag indicating whether the summary portion of displayed messages should be included. Default value is "false".
dirfalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
Direction indication for text that does not inherit directionality. Valid values are "LTR" (left-to-right) and "RTL" (right-to-left).
errorClassfalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style class to apply to any message with a severity class of "ERROR".
errorStylefalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style(s) to apply to any message with a severity class of "ERROR".
fatalClassfalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style class to apply to any message with a severity class of "FATAL".
fatalStylefalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style(s) to apply to any message with a severity class of "FATAL".
infoClassfalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style class to apply to any message with a severity class of "INFO".
infoStylefalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style(s) to apply to any message with a severity class of "INFO".
langfalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
Code describing the language used in the generated markup for this component.
stylefalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style(s) to be applied when this component is rendered.
styleClassfalsejakarta.el.ValueExpression
(must evaluate to 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.
titlefalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
Advisory title information about markup elements generated for this component.
tooltipfalsejakarta.el.ValueExpression
(must evaluate to java.lang.Boolean)
Flag indicating whether the detail portion of the message should be displayed as a tooltip.
warnClassfalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style class to apply to any message with a severity class of "WARN".
warnStylefalsejakarta.el.ValueExpression
(must evaluate to java.lang.String)
CSS style(s) to apply to any message with a severity class of "WARN".
bindingfalsejakarta.el.ValueExpression
(must evaluate to jakarta.faces.component.UIComponent)
The ValueExpression linking this component to a property in a backing bean
rolefalsejakarta.el.ValueExpression
(must evaluate to 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.