Package javax.faces.webapp

Class ValidatorTag

java.lang.Object
javax.servlet.jsp.tagext.TagSupport
javax.faces.webapp.ValidatorTag
All Implemented Interfaces:
Serializable, IterationTag, JspTag, Tag
public class ValidatorTag extends TagSupport
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.

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:

  • Constructor Details

    • ValidatorTag

      public ValidatorTag()
      Deprecated.

  • Method Details

    • 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.

    • 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

    • 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:

    • release

      public void release()
      Deprecated.

      Release references to any acquired resources.

      Specified by:
      release in interface Tag
      Overrides:
      release in class TagSupport
      See Also:

    • createValidator

      protected Validator createValidator() throws JspException
      Deprecated.

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

      Returns:
      the created Validator
      Throws:
      JspException - if a new instance cannot be created