Used inside of the
metadata facet of a view, this tag causes a UIViewParameter
to be attached as metadata for the current view. Because
UIViewParameter extends UIInput
all of the attributes and nested child content for any
UIInput tags are valid on this tag as well.
| Info | Value |
|---|---|
| Component Type | jakarta.faces.Parameter |
| Handler Class | None |
| Renderer Type | None |
| Description | None |
| Name | Required | Type | Description |
|---|---|---|---|
binding | false | jakarta.el.ValueExpression
(must evaluate to jakarta.faces.component.UIComponent)
|
The ValueExpression linking this component to a property in a backing bean. |
converter | false | jakarta.el.ValueExpression
(must evaluate to jakarta.faces.convert.Converter)
|
Converter instance registered with this component. |
converterMessage | false | jakarta.el.ValueExpression
(must evaluate to java.lang.String)
|
A ValueExpression enabled attribute that, if present, will be used as the text of the converter message, replacing any message that comes from the converter. |
for | false | jakarta.el.ValueExpression
(must evaluate to java.lang.String)
|
If present, this attribute refers to the value of one of the exposed attached objects within the composite component inside of which this tag is nested. |
id | false | jakarta.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. |
name | true | jakarta.el.ValueExpression
(must evaluate to java.lang.String)
|
The name of the request parameter from which the value for this component is retrieved on an initial request or to override the stored value on a postback. |
required | false | jakarta.el.ValueExpression
(must evaluate to boolean)
|
Flag indicating that the user is required to provide a submitted value for this input component. |
requiredMessage | false | jakarta.el.ValueExpression
(must evaluate to java.lang.String)
|
A ValueExpression enabled attribute that, if present, will be used as the text of the validation message for the "required" facility, if the "required" facility is used. |
validator | false | jakarta.el.MethodExpression
(signature must match void validate(jakarta.faces.context.FacesContext,
jakarta.faces.component.UIComponent, java.lang.Object)
)
|
MethodExpression representing a validator method that will be called during Process Validations to perform correctness checks on the value of this component. The expression must evaluate to a public method that takes FacesContext, UIComponent, and Object parameters, with a return type of void. |
validatorMessage | false | jakarta.el.ValueExpression
(must evaluate to java.lang.String)
|
A ValueExpression enabled attribute that, if present, will be used as the text of the validator message, replacing any message that comes from the validator. |
value | false | jakarta.el.ValueExpression
(must evaluate to java.lang.Object)
|
A ValueExpression to which the value of the request parameter, as determined by the name attribute, is bound. The resolved value of this expression is used when encoding the view parameter into a bookmarkable link or redirect URL with view parameter encoding enabled. If this attribute is omitted, the value of the request parameter will instead be the local value of the UIViewParameter. |
valueChangeListener | false | jakarta.el.MethodExpression
(signature must match void
valueChange(jakarta.faces.event.ValueChangeEvent)
)
|
MethodExpression representing a value change listener method
that will be notified when a new value has been set for this
input component. The expression must evaluate to a public
method that takes a |
maxlength | false | jakarta.el.ValueExpression
(must evaluate to int)
| The maximum number of characters that may be entered in this field. |