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ValidatorTag (Java EE 5 SDK) - Java Platform, Enterprise Edition v5.0 API Specifications

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javax.faces.webapp
Class ValidatorTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      javax.faces.webapp.ValidatorTag

All Implemented Interfaces:

Serializable, IterationTag, JspTag, Tag

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Deprecated. This has been partially replaced by ValidatorELTag. The remainder of the functionality, namely, the binding facility and the implementation of the createValidator() method, is now an implementation detail.

public class ValidatorTag
extends TagSupport

ValidatorTag 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 UIComponentTag) during the execution of the current page.

This class may be used directly to implement a generic validator registration tag (based on the validator-id specified by the id attribute), or as a base class for tag instances that support specific Validator subclasses. This id attribute must refer to one of the well known validator-ids, or a custom validator-id as defined in a faces-config.xml file.

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.

See Also:

Serialized Form

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Field Summary

 

Fields inherited from class javax.servlet.jsp.tagext.TagSupport
id, pageContext

 

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag
EVAL_BODY_AGAIN

 

Fields inherited from interface javax.servlet.jsp.tagext.Tag
EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

 

Constructor Summary
ValidatorTag()           Deprecated.

 

Method Summary
protected  Validator	createValidator()           Deprecated. Create and return a new Validator to be registered on our surrounding UIComponent.
int	doStartTag()           Deprecated. Create a new instance of the specified Validator class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentTag instance, if the UIComponent instance was created by this execution of the containing JSP page.
void	release()           Deprecated. Release references to any acquired resources.
void	setBinding(String binding)           Deprecated. Set the expression that will be used to create a ValueExpression that references a backing bean property of the Validator instance to be created.
void	setValidatorId(String validatorId)           Deprecated. Set the identifer of the Validator instance to be created.

 

Methods inherited from class javax.servlet.jsp.tagext.TagSupport
doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

ValidatorTag

public ValidatorTag()

Deprecated. 

Method Detail

setValidatorId

public void setValidatorId(String validatorId)

Deprecated. 

Set the identifer of the Validator instance to be created.

Parameters:

validatorId - The new identifier of the validator instance to be created.

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setBinding

public void setBinding(String binding)
                throws JspException

Deprecated. 

Set the expression that will be used to create a ValueExpression that references a backing bean property of the Validator instance to be created.

Parameters:

binding - The new expression

Throws:

JspException - if a JSP error occurs

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doStartTag

public int doStartTag()
               throws JspException

Deprecated. 

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

Specified by:

doStartTag in interface Tag

Overrides:

doStartTag in class TagSupport

Returns:

SKIP_BODY

Throws:

JspException - if a JSP error occurs

See Also:

Tag.doStartTag()

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release

public void release()

Deprecated. 

Release references to any acquired resources.

Specified by:

release in interface Tag

Overrides:

release in class TagSupport

See Also:

Tag.release()

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createValidator

protected Validator createValidator()
                             throws JspException

Deprecated. 

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

Throws:

JspException - if a new instance cannot be created

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