com.interface21.web.servlet.tags
Class MessageTag

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagSupport
        |
        +--com.interface21.web.servlet.tags.RequestContextAwareTag
              |
              +--com.interface21.web.servlet.tags.MessageTag

All Implemented Interfaces:

javax.servlet.jsp.tagext.IterationTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag

Direct Known Subclasses:

ThemeTag

public class MessageTag

extends RequestContextAwareTag

Custom tag to look up a message in the scope of this page. Messages are looked up using the ApplicationContext, and thus should support internationalization.

Regards a HTML escaping setting, either on this tag instance, the page level, or the web.xml level.

If "code" isn't set or cannot be resolved, "text" will be used as default message. Thus, this tag can also be used for HTML escaping of any texts.

Author:

Rod Johnson, Juergen Hoeller

See Also:

setCode(java.lang.String), setText(java.lang.String), RequestContextAwareTag.setHtmlEscape(boolean), HtmlEscapeTag.setDefaultHtmlEscape(boolean), HtmlEscapeTag.HTML_ESCAPE_CONTEXT_PARAM, Serialized Form

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

MessageTag()

Method Summary

int	doStartTag() Create and set the current RequestContext.
protected MessageSource	getMessageSource() Use the application context itself for default message resolution.
protected java.lang.String	getNoSuchMessageExceptionDescription(NoSuchMessageException ex) Return default exception message.
void	setCode(java.lang.String code) Set the message code for this tag.
void	setText(java.lang.String text) Set the message text for this tag.
protected void	writeMessage(java.lang.String msg)

Methods inherited from class com.interface21.web.servlet.tags.RequestContextAwareTag

getRequestContext, isHtmlEscape, setHtmlEscape

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

Constructor Detail

MessageTag

public MessageTag()

Method Detail

setCode

public final void setCode(java.lang.String code)

Set the message code for this tag.

setText

public final void setText(java.lang.String text)

Set the message text for this tag.

doStartTag

public final int doStartTag()
                     throws javax.servlet.jsp.JspException

Description copied from class: RequestContextAwareTag

Create and set the current RequestContext. Note: Do not forget to call super.doStartTag() in subclasses!

Overrides:

doStartTag in class RequestContextAwareTag

writeMessage

protected void writeMessage(java.lang.String msg)
                     throws java.io.IOException

getMessageSource

protected MessageSource getMessageSource()

Use the application context itself for default message resolution.

getNoSuchMessageExceptionDescription

protected java.lang.String getNoSuchMessageExceptionDescription(NoSuchMessageException ex)

Return default exception message.