Top Description Fields Constructors Methods
javax.faces.webapp

public abstract Class ValidatorELTag

extends TagSupport
Class Inheritance
Known Direct Subclasses
com.sun.faces.ext.taglib.CreditCardValidatorTag, com.sun.faces.taglib.jsf_core.AbstractValidatorTag
Imports
javax.faces.component.EditableValueHolder, .UIComponent, javax.faces.validator.Validator, javax.servlet.jsp.JspException, javax.servlet.jsp.tagext.TagSupport

ValidatorELTag is a base class for all JSP custom actions that create and register a Validator instance on the EditableValueHolder associated with our most immediate surrounding instance of a tag whose implementation class is a subclass of UIComponentTag. To avoid creating duplicate instances when a page is redisplayed, creation and registration of a Validator occurs only if the corresponding UIComponent was created (by the owning UIComponentTagBase) during the execution of the current page.

This class must be used as a base class for tag instances that support specific Validator subclasses.

Subclasses of this class must implement the createValidator() method, which creates and returns a Validator instance. Any configuration properties that specify the limits to be enforced by this Validator must have been set by the createValidator() method. Generally, this occurs by copying corresponding attribute values on the tag instance.

This tag creates no output to the page currently being created. It is used solely for the side effect of Validator creation.

Field Summary

Modifier and TypeField and Description
private static final long
Inherited from javax.servlet.jsp.tagext.TagSupport:
idpageContext

Constructor Summary

AccessConstructor and Description
public

Method Summary

Modifier and TypeMethod and Description
protected abstract Validator<T>

Returns:

the created Validator
createValidator
()

Create and return a new Validator to be registered on our surrounding UIComponent.

public int
doStartTag()

Overrides javax.servlet.jsp.tagext.TagSupport.doStartTag.

Implements javax.servlet.jsp.tagext.Tag.doStartTag.

Create a new instance of the specified Validator class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentTagBase instance, if the UIComponent instance was created by this execution of the containing JSP page.

Inherited from javax.servlet.jsp.tagext.TagSupport:
doAfterBodydoEndTagfindAncestorWithClassgetIdgetParentgetValuegetValuesreleaseremoveValuesetIdsetPageContextsetParentsetValue

Field Detail

serialVersionUIDback to summary
private static final long serialVersionUID

Constructor Detail

ValidatorELTagback to summary
public ValidatorELTag()

Method Detail

createValidatorback to summary
protected abstract Validator<T> createValidator() throws JspException

Create and return a new Validator to be registered on our surrounding UIComponent.

Returns:Validator<T>

the created Validator

Exceptions
JspException:
if a new instance cannot be created
doStartTagback to summary
public int doStartTag() throws JspException

Overrides javax.servlet.jsp.tagext.TagSupport.doStartTag.

Implements javax.servlet.jsp.tagext.Tag.doStartTag.

Create a new instance of the specified Validator class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentTagBase instance, if the UIComponent instance was created by this execution of the containing JSP page.

Returns:int

Doc from javax.servlet.jsp.tagext.TagSupport.doStartTag.

SKIP_BODY

Annotations
@Override
Exceptions
JspException:
if a JSP error occurs