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## 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

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.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
`void` | `init(java.util.Map context)`
`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.
`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(), java.lang.Object#wait(long), java.lang.Object#wait(long, int), 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

### out

    protected java.io.PrintWriter out

### parser

    protected GroovyPageParser parser

### tagContext

    @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

### 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