public abstract class

RequestContextAwareTag

extends TagSupport

java.lang.Object
↳	TagSupport
	↳	org.springframework.web.servlet.tags.RequestContextAwareTag

Known Direct Subclasses

HtmlEscapeTag, HtmlEscapingAwareTag

Known Indirect Subclasses

AbstractCheckedElementTag, AbstractDataBoundFormElementTag, AbstractFormTag, AbstractHtmlElementBodyTag, AbstractHtmlElementTag, AbstractHtmlInputElementTag, AbstractMultiCheckedElementTag, AbstractSingleCheckedElementTag, BindErrorsTag, BindTag, CheckboxTag, CheckboxesTag, ErrorsTag, EscapeBodyTag, EvalTag, and 15 others.

AbstractCheckedElementTag	Abstract base class to provide common methods for implementing databinding-aware JSP tags for rendering an HTML '`input`' element with a '`type`' of '`checkbox`' or '`radio`'.
AbstractDataBoundFormElementTag	Base tag for all data-binding aware JSP form tags.
AbstractFormTag	Base class for all JSP form tags.
AbstractHtmlElementBodyTag	Convenient super class for many html tags that render content using the databinding features of the `AbstractHtmlElementTag`.
AbstractHtmlElementTag	Base class for databinding-aware JSP tags that render HTML element.
AbstractHtmlInputElementTag	Base class for databinding-aware JSP tags that render HTML form input element.
AbstractMultiCheckedElementTag	Abstract base class to provide common methods for implementing databinding-aware JSP tags for rendering multiple HTML '`input`' elements with a '`type`' of '`checkbox`' or '`radio`'.
AbstractSingleCheckedElementTag	Abstract base class to provide common methods for implementing databinding-aware JSP tags for rendering a single HTML '`input`' element with a '`type`' of '`checkbox`' or '`radio`'.
BindErrorsTag	JSP tag that evaluates content if there are binding errors for a certain bean.
BindTag	Bind tag, supporting evaluation of binding errors for a certain bean or bean property.
CheckboxTag	Databinding-aware JSP tag for rendering an HTML '`input`' element with a '`type`' of '`checkbox`'.
CheckboxesTag	Databinding-aware JSP tag for rendering multiple HTML '`input`' elements with a '`type`' of '`checkbox`'.
ErrorsTag	Form tag for displaying errors for a particular field or object.
EscapeBodyTag	Custom JSP tag to escape its enclosed body content, applying HTML escaping and/or JavaScript escaping.
EvalTag	JSP tag for evaluating expressions with the Spring Expression Language (SpEL).
FormTag	Databinding-aware JSP tag for rendering an HTML '`form`' whose inner elements are bound to properties on a form object.
HiddenInputTag	Data-binding aware JSP tag for rendering a hidden HTML '`input`' field containing the databound value.
InputTag	Data-binding-aware JSP tag for rendering an HTML '`input`' element with a '`type`' of '`text`'.
LabelTag	Databinding-aware JSP tag for rendering an HTML '`label`' element that defines text that is associated with a single form element.
MessageTag	Custom JSP tag to look up a message in the scope of this page.
OptionTag	JSP tag for rendering an HTML '`option`' tag.
OptionsTag	Convenient tag that allows one to supply a collection of objects that are to be rendered as '`option`' tags within a '`select`' tag.
PasswordInputTag	Databinding-aware JSP tag for rendering an HTML '`input`' element with a '`type`' of '`password`'.
RadioButtonTag	Databinding-aware JSP tag for rendering an HTML '`input`' element with a '`type`' of '`radio`'.
RadioButtonsTag	Databinding-aware JSP tag for rendering multiple HTML '`input`' elements with a '`type`' of '`radio`'.
SelectTag	Databinding-aware JSP tag that renders an HTML '`select`' element.
TextareaTag	Databinding-aware JSP tag for rendering an HTML '`textarea`'.
ThemeTag	Custom tag to look up a theme message in the scope of this page.
TransformTag	Tag for transforming reference data values from form controllers and other objects inside a `spring:bind` tag (or a data-bound form element tag from Spring's form tag library).
UrlTag	JSP tag for creating URLs.

Class Overview

Superclass for all tags that require a RequestContext.

The RequestContext instance provides easy access to current state like the WebApplicationContext, the Locale, the Theme, etc.

Mainly intended for DispatcherServlet requests; will use fallbacks when used outside DispatcherServlet.

Summary

Constants
String	REQUEST_CONTEXT_PAGE_ATTRIBUTE	javax.servlet.jsp.PageContext attribute for the page-level `RequestContext` instance.

Fields
protected final Log	logger	Logger available to subclasses

Public Constructors
	RequestContextAwareTag()

Public Methods
void	doCatch(Throwable throwable)
void	doFinally()
final int	doStartTag() Create and expose the current RequestContext.

Protected Methods
abstract int	doStartTagInternal() Called by doStartTag to perform the actual work.
final RequestContext	getRequestContext() Return the current RequestContext.

[Expand]

Inherited Methods

From class java.lang.Object

Constants

public static final String REQUEST_CONTEXT_PAGE_ATTRIBUTE

javax.servlet.jsp.PageContext attribute for the page-level RequestContext instance.

Constant Value: "org.springframework.web.servlet.tags.REQUEST_CONTEXT"

Fields

protected final Log logger

Logger available to subclasses

Public Constructors

public RequestContextAwareTag ()

Public Methods

public void doCatch (Throwable throwable)

Throws

Throwable

public void doFinally ()

public final int doStartTag ()

Create and expose the current RequestContext. Delegates to doStartTagInternal() for actual work.

Throws

JspException

Protected Methods

protected abstract int doStartTagInternal ()

Called by doStartTag to perform the actual work.

Returns

same as TagSupport.doStartTag

Throws

Exception	any exception, any checked one other than a JspException gets wrapped in a JspException by doStartTag

protected final RequestContext getRequestContext ()

Return the current RequestContext.

Interfaces

Classes

RequestContextAwareTag

Class Overview

See Also

Summary

Constants

public static final String REQUEST_CONTEXT_PAGE_ATTRIBUTE

Fields

protected final Log logger

Public Constructors

public RequestContextAwareTag ()

Public Methods

public void doCatch (Throwable throwable)

Throws

public void doFinally ()

public final int doStartTag ()

Throws

See Also

Protected Methods

protected abstract int doStartTagInternal ()

Returns

Throws

See Also

protected final RequestContext getRequestContext ()