org.codehaus.groovy.grails.web.taglib
[Java] Class GroovySyntaxTag

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

All Implemented Interfaces:

GrailsTag

public abstract class GroovySyntaxTag

A tag type that gets translated directly into Groovy syntax by the GSP parser.

This is used for Java-implemented internal tags that the Parse class uses to directly inject code into the generated GSP source. These tags can do more than custom taglibs as the operate at the code level, rather than at the runtime view rendering level

Authors:

Graeme Rocher

ATTRIBUTES_STATUS

protected static final java.lang.String ATTRIBUTES_STATUS

ATTRIBUTE_IN

protected static final java.lang.String ATTRIBUTE_IN

ATTRIBUTE_VAR

protected static final java.lang.String ATTRIBUTE_VAR

attributes

protected java.util.Map attributes

out

protected java.io.PrintWriter out

parser

protected GroovyPageParser parser

tagContext

@SuppressWarnings("rawtypes")
protected java.util.Map tagContext

calculateExpression

protected java.lang.String calculateExpression(java.lang.String expr)

doEachMethod

protected void doEachMethod(java.lang.String in)

Parameters:

in

init

@SuppressWarnings("rawtypes")
public void init(java.util.Map context)

isAllowPrecedingContent

public boolean isAllowPrecedingContent()

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.

todo:

rework this and combine with isKeepPrecedingWhiteSpace as really they are used in the same situations

Returns:

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

isKeepPrecedingWhiteSpace

public boolean isKeepPrecedingWhiteSpace()

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.

Returns:

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

setAttribute

public void setAttribute(java.lang.String name, java.lang.Object value)

setAttributes

@SuppressWarnings("rawtypes")
public void setAttributes(java.util.Map attributes)

setWriter

public void setWriter(java.io.Writer w)

Groovy Documentation