org.codehaus.groovy.grails.web.taglib
Class GroovyElseTag

java.lang.Object
  org.codehaus.groovy.grails.web.taglib.GroovySyntaxTag
      org.codehaus.groovy.grails.web.taglib.GroovyElseTag

All Implemented Interfaces:

GrailsTag

public class GroovyElseTag
extends GroovySyntaxTag

Since:

18-Jan-2006

Author:

Graeme Rocher

Field Summary

static String

TAG_NAME

Fields inherited from class org.codehaus.groovy.grails.web.taglib.GroovySyntaxTag

ATTRIBUTE_IN, ATTRIBUTE_VAR, attributes, ATTRIBUTES_STATUS, out, parser, tagContext

Constructor Summary

GroovyElseTag()

Method Summary

void	doEndTag() process the end tag
void	doStartTag() Process the start tag
String	getName()
boolean	isAllowPrecedingContent() Tags must return the correct value to indicate whether or not non-whitespace content is permitted before this tag.
boolean	isKeepPrecedingWhiteSpace() Tags must return the correct value to indicate whether or not whitespace before this tag should be kept in the output.

Methods inherited from class org.codehaus.groovy.grails.web.taglib.GroovySyntaxTag

calculateExpression, doEachMethod, init, setAttribute, setAttributes, setWriter

Methods inherited from class java.lang.Object

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

Field Detail

TAG_NAME

public static final String TAG_NAME

See Also:

Constant Field Values

Constructor Detail

GroovyElseTag

public GroovyElseTag()

Method Detail

doStartTag

public void doStartTag()

Description copied from interface: GrailsTag

Process the start tag

doEndTag

public void doEndTag()

Description copied from interface: GrailsTag

process the end tag

getName

public String getName()

Returns:

The name of the tag

isKeepPrecedingWhiteSpace

public boolean isKeepPrecedingWhiteSpace()

Description copied from class: GroovySyntaxTag

Tags must return the correct value to indicate whether or not whitespace before this tag should be kept in the output.

This is for tags that must follow other tags, such as g:else or g:elseif that do not allow content between them and the previous tag, and need to swallow the whitespace between them.

Specified by:

isKeepPrecedingWhiteSpace in class GroovySyntaxTag

Returns:

True if any whitespace immediately before the tag should be kept in the output - false if it is to be discarded

isAllowPrecedingContent

public boolean isAllowPrecedingContent()

Description copied from class: GroovySyntaxTag

Tags must return the correct value to indicate whether or not non-whitespace content is permitted before this tag.

This is for tags that must follow other tags, such as g:else or g:elseif that do not allow content between them and the previous tag. It is simply used as a safety mechanism to trap incorrect usage of tags.

Specified by:

isAllowPrecedingContent in class GroovySyntaxTag

Returns:

True if any content is allowed immediately before the tag - false if it is an error to have such content before it