Groovy Documentation

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
extends java.lang.Object

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


Field Summary
protected static java.lang.String ATTRIBUTES_STATUS

protected static java.lang.String ATTRIBUTE_IN

protected static java.lang.String ATTRIBUTE_VAR

protected java.util.Map attributes

protected java.lang.String foreachRenamedIt

protected java.io.PrintWriter out

protected GroovyPageParser parser

protected java.util.Map tagContext

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

protected void doEachMethod(java.lang.String in)

@param in

protected void endEachMethod()

java.lang.String getForeachRenamedIt()

void init(java.util.Map context)

boolean isAllowPrecedingContent()

boolean isKeepPrecedingWhiteSpace()

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

void setAttributes(java.util.Map attributes)

void setWriter(java.io.Writer w)

 
Methods inherited from class java.lang.Object
java.lang.Object#wait(long, int), java.lang.Object#wait(long), java.lang.Object#wait(), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()
 

Field Detail

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


foreachRenamedIt

protected java.lang.String foreachRenamedIt


out

protected java.io.PrintWriter out


parser

protected GroovyPageParser parser


tagContext

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


 
Method Detail

calculateExpression

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


doEachMethod

protected void doEachMethod(java.lang.String in)
Parameters:
in


endEachMethod

protected void endEachMethod()


getForeachRenamedIt

public java.lang.String getForeachRenamedIt()


init

@java.lang.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

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


setWriter

public void setWriter(java.io.Writer w)


 

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