Top Description Fields Constructors Methods
javax.faces.webapp

public abstract Class ConverterELTag

extends TagSupport
Class Inheritance
Imports
javax.faces.component.UIComponent, .ValueHolder, javax.faces.context.FacesContext, javax.faces.convert.Converter, .ConverterException, javax.servlet.jsp.JspException, javax.servlet.jsp.tagext.TagSupport

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

This class may be used as a base class for tag instances that support specific Converter subclasses.

Subclasses of this class must implement the createConverter() method, which creates and returns a Converter instance. Any configuration properties that specify behavior of this Converter must have been set by the createConverter() 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 Converter creation.

Field Summary

Modifier and TypeField and Description
private static final long
serialVersionUID

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

Constructor Summary

AccessConstructor and Description
public
ConverterELTag()

Method Summary

Modifier and TypeMethod and Description
protected abstract Converter<T>

Returns:

the Converter
createConverter()

Create and return a new Converter 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 Converter class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentClassicTagBase 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

ConverterELTagback to summary
public ConverterELTag()

Method Detail

createConverterback to summary
protected abstract Converter<T> createConverter() throws JspException

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

Returns:Converter<T>

the Converter

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 Converter class, and register it with the UIComponent instance associated with our most immediately surrounding UIComponentClassicTagBase instance, if the UIComponent instance was created by this execution of the containing JSP page. If the localValue of the UIComponent is a String, attempt to convert it.

Returns:int

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

SKIP_BODY

Annotations
@Override
Exceptions
JspException:
if a JSP error occurs