|
DRAFT | ||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||
java.lang.Objectjavax.faces.validator.MethodExpressionValidator
public class MethodExpressionValidator
MethodExpressionValidator is a Validator that
wraps a MethodExpression, and it performs validation by executing
a method on an object identified by the MethodExpression.
| Field Summary |
|---|
| Fields inherited from interface javax.faces.validator.Validator |
|---|
NOT_IN_RANGE_MESSAGE_ID |
| Constructor Summary | |
|---|---|
MethodExpressionValidator()
|
|
MethodExpressionValidator(MethodExpression methodExpression)
Construct a Validator that contains a MethodExpression. |
|
| Method Summary | |
|---|---|
boolean |
isTransient()
If true, the Object implementing this interface must not participate in state saving or restoring. |
void |
restoreState(FacesContext context,
java.lang.Object state)
Perform any processing required to restore the state from the entries in the state Object. |
java.lang.Object |
saveState(FacesContext context)
Gets the state of the instance as a Serializable Object. |
void |
setTransient(boolean transientValue)
Denotes whether or not the Object implementing this interface must or must not participate in state saving or restoring. |
void |
validate(FacesContext context,
UIComponent component,
java.lang.Object value)
Perform the correctness checks implemented by this Validator against
the specified UIComponent. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public MethodExpressionValidator()
public MethodExpressionValidator(MethodExpression methodExpression)
Construct a Validator that contains a MethodExpression.
| Method Detail |
|---|
public void validate(FacesContext context,
UIComponent component,
java.lang.Object value)
throws ValidatorException
ValidatorPerform the
correctness checks implemented by this Validator against
the specified UIComponent. If any violations are found,
a ValidatorException will be thrown containing the FacesMessage describing the failure.
For a validator to be fully compliant with Version 2 and later
of the specification, it must not fail validation on
null or empty values unless it is specifically
intended to address null or empty values. An
application-wide <context-param> is provided
to allow validators designed for JSF 1.2 to work with JSF 2 and
later. The javax.faces.VALIDATE_EMPTY_FIELDS
<context-param> must be set to
false to enable this backwards compatibility
behavior.
validate in interface Validatorcontext - FacesContext for the request we are processingcomponent - UIComponent we are checking for correctnessvalue - the value to validate
java.lang.NullPointerException - if context
or component is null
ValidatorException - if validation failspublic java.lang.Object saveState(FacesContext context)
StateHolder Gets the state of the instance as a
Serializable Object.
If the class that implements this interface has references to
instances that implement StateHolder (such as a
UIComponent with event handlers, validators, etc.)
this method must call the StateHolder.saveState(javax.faces.context.FacesContext) method on all those
instances as well. This method must not save the state
of children and facets. That is done via the StateManager
This method must not alter the state of the implementing object. In other words, after executing this code:
Object state = component.saveState(facesContext);
component should be the same as before executing
it.
The return from this method must be Serializable
saveState in interface StateHolder
public void restoreState(FacesContext context,
java.lang.Object state)
StateHolderPerform any processing required to restore the state from the entries in the state Object.
If the class that implements this interface has references to
instances that also implement StateHolder (such as a
UIComponent with event handlers, validators, etc.)
this method must call the StateHolder.restoreState(javax.faces.context.FacesContext, java.lang.Object) method on all those
instances as well.
restoreState in interface StateHolderpublic boolean isTransient()
StateHolderIf true, the Object implementing this interface must not participate in state saving or restoring.
isTransient in interface StateHolderpublic void setTransient(boolean transientValue)
StateHolderDenotes whether or not the Object implementing this interface must or must not participate in state saving or restoring.
setTransient in interface StateHoldertransientValue - boolean pass true if this Object
will participate in state saving or restoring, otherwise
pass false.
|
DRAFT | ||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||
Copyright © 2009 Sun Microsystems, Inc. All Rights Reserved. Use is subject to license terms.
Generated on 24-November-2009 03:24