public interface ValueHolder
ValueHolder is an
interface that may be implemented by any concrete UIComponent
that wishes to support a local value, as well as access data in the
model tier via a value expression, and support conversion
between String and the model tier data's native data type.
Modifier and Type | Method and Description |
---|---|
Converter |
getConverter()
Return the
Converter (if any)
that is registered for this UIComponent . |
Object |
getLocalValue()
Return the local value of this
UIComponent (if any),
without evaluating any associated ValueExpression . |
Object |
getValue()
Gets the value of this
UIComponent . |
void |
setConverter(Converter converter)
Set the
Converter (if any) that is registered for this
UIComponent . |
void |
setValue(Object value)
Set the value of this
UIComponent (if any). |
Object getLocalValue()
Return the local value of this UIComponent
(if any),
without evaluating any associated ValueExpression
.
Object getValue()
Gets the value of this UIComponent
. If validation
failed, as indicated by
FacesContext.isValidationFailed()
returning true
, always return the local value.
Otherwise, first, consult the local value property of this
component. If non-null
return it. If
null
, see if we have a ValueExpression
for
the value
property. If so, return the result of
evaluating the property, otherwise return null
.
Note that because the specification for UIComponent.setValueBinding(java.lang.String, javax.faces.el.ValueBinding)
requires a call through to UIComponent.setValueExpression(java.lang.String, javax.el.ValueExpression)
, legacy tags will continue to
work.
void setValue(Object value)
Set the value of this UIComponent
(if any).
value
- The new local valueConverter getConverter()
Return the Converter
(if any)
that is registered for this UIComponent
.
void setConverter(Converter converter)
Set the Converter
(if any) that is registered for this
UIComponent
.
converter
- New Converter
(or null
)Copyright © 2017 JBoss by Red Hat. All rights reserved.