net.sourceforge.stripes.tag
Class DefaultTagErrorRenderer

java.lang.Object
  net.sourceforge.stripes.tag.DefaultTagErrorRenderer

All Implemented Interfaces:

TagErrorRenderer

public class DefaultTagErrorRenderer
extends Object
implements TagErrorRenderer

This default implementation of the TagErrorRenderer interface sets the html class attribute to 'error'. More specifically, if the tag had no previous CSS class, it will have its class attribute set to error. If it previously had a CSS class attribute, e.g. class="foo", then it's class attribute will be re-written as class="foo error", which instructs the browser to apply both styles, with error taking precedence. The use of a single class name allows applications to define a single style for all input fields, and then override it for specific fields as they choose.

An example of the css definition to set backgrounds to yellow by default, but to red for checkboxes and radio buttons follows:

input.error { background-color: yellow; } input[type="checkbox"].error, input[type="radio"].error {background-color: red; }

Author:

Greg Hinkle, Tim Fennell

Constructor Summary

DefaultTagErrorRenderer()

Method Summary

void	doAfterEndTag() Resets the tag's class attribute to it's original value in case the tag gets pooled.
void	doBeforeStartTag() Changes the tag's class attribute to "error".
void	init(InputTagSupport tag) Simply stores the tag passed in.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultTagErrorRenderer

public DefaultTagErrorRenderer()

Method Detail

init

public void init(InputTagSupport tag)

Simply stores the tag passed in.

Specified by:

init in interface TagErrorRenderer

Parameters:

tag - The InputTagSuppport subclass that will be modified

doBeforeStartTag

public void doBeforeStartTag()

Changes the tag's class attribute to "error".

Specified by:

doBeforeStartTag in interface TagErrorRenderer

doAfterEndTag

public void doAfterEndTag()

Resets the tag's class attribute to it's original value in case the tag gets pooled.

Specified by:

doAfterEndTag in interface TagErrorRenderer