org.springframework.web.servlet.tags
Class RequestContextAwareTag
java.lang.Object
   javax.servlet.jsp.tagext.TagSupport
javax.servlet.jsp.tagext.TagSupport
       org.springframework.web.servlet.tags.RequestContextAwareTag
org.springframework.web.servlet.tags.RequestContextAwareTag
- All Implemented Interfaces: 
- Serializable, IterationTag, JspTag, Tag, TryCatchFinally
- Direct Known Subclasses: 
- HtmlEscapeTag, HtmlEscapingAwareTag
- public abstract class RequestContextAwareTag 
- extends TagSupport- implements TryCatchFinally
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.
- Author:
- Rod Johnson, Juergen Hoeller
- See Also:
- RequestContext,- DispatcherServlet, 
Serialized Form
 
 
 
 
 
 
| Methods inherited from class javax.servlet.jsp.tagext.TagSupport | 
| doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, release, removeValue, setId, setPageContext, setParent, setValue | 
 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
 
REQUEST_CONTEXT_PAGE_ATTRIBUTE
public static final String REQUEST_CONTEXT_PAGE_ATTRIBUTE
- PageContextattribute for page-level- RequestContextinstance.- 
 - 
- See Also:
- Constant Field Values
 
logger
protected final Log logger
- Logger available to subclasses
 
 
RequestContextAwareTag
public RequestContextAwareTag()
doStartTag
public final int doStartTag()
                     throws JspException
- Create and expose the current RequestContext.
 Delegates to doStartTagInternal()for actual work.
 
- 
- Specified by:
- doStartTagin interface- Tag
- Overrides:
- doStartTagin class- TagSupport
 
- 
- Throws:
- JspException
- See Also:
- REQUEST_CONTEXT_PAGE_ATTRIBUTE,- JspAwareRequestContext
 
getRequestContext
protected final RequestContext getRequestContext()
- Return the current RequestContext.
 
- 
 
- 
 
doStartTagInternal
protected abstract int doStartTagInternal()
                                   throws Exception
- 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
- See Also:
- TagSupport.doStartTag()
 
doCatch
public void doCatch(Throwable throwable)
             throws Throwable
- 
- Specified by:
- doCatchin interface- TryCatchFinally
 
- 
- Throws:
- Throwable
 
doFinally
public void doFinally()
- 
- Specified by:
- doFinallyin interface- TryCatchFinally
 
- 
 
Copyright © 2002-2008 The Spring Framework.