Package: org.codehaus.groovy.transform

## [Java] Class AnnotationCollectorTransform

- org.codehaus.groovy.transform.AnnotationCollectorTransform

- This class is the base for any annotation alias processor.

  See Also:
    AnnotationCollector
    AnnotationCollectorTransform.visit
  Authors:
    Jochen "blackdrag" Theodorou

- - ### Nested Class Summary

    Nested classes
    Modifiers | Name | Description
    --- | --- | ---
    `static class` | `AnnotationCollectorTransform.ClassChanger` | Class used by CompilationUnit to transform the alias class into what is needed by the compiler.

  - ### Methods Summary

    Methods
    Type Params | Return Type | Name and description
    --- | --- | ---
    `` | `protected void` | `addError(String message, ASTNode node, SourceUnit source)` Adds a new syntax error to the source unit and then continues.
    `` | `protected List<AnnotationNode>` | `getTargetAnnotationList(AnnotationNode collector, AnnotationNode aliasAnnotationUsage, SourceUnit source)` Returns a list of AnnotationNodes for the value attribute of the given AnnotationNode.
    `` | `List<AnnotationNode>` | `visit(AnnotationNode collector, AnnotationNode aliasAnnotationUsage, AnnotatedNode aliasAnnotated, SourceUnit source)` Implementation method of the alias annotation processor.

  - ### Inherited Methods Summary

    Inherited Methods
    Methods inherited from class | Name
    --- | ---
    `class Object` | `equals, toString, hashCode, getClass, notify, notifyAll, wait, wait, wait`

- - ### Method Detail

    - #### protected void addError(String message, ASTNode node, SourceUnit source)

      Adds a new syntax error to the source unit and then continues.

      Parameters:
        `message` - the message
        `node` - the node for the error report
        `source` - the source unit for the error report

    - #### protected List<AnnotationNode> getTargetAnnotationList(AnnotationNode collector, AnnotationNode aliasAnnotationUsage, SourceUnit source)

      Returns a list of AnnotationNodes for the value attribute of the given AnnotationNode.

      Parameters:
        `collector` - the node containing the value member with the list
        `source` - the source unit for error reporting
      Returns:
        a list of string constants

    - #### public List<AnnotationNode> visit(AnnotationNode collector, AnnotationNode aliasAnnotationUsage, AnnotatedNode aliasAnnotated, SourceUnit source)

      Implementation method of the alias annotation processor. This method will get the list of annotations we aliased from the collector and adds it to aliasAnnotationUsage. The method will also map all members from aliasAnnotationUsage to the aliased nodes. Should a member stay unmapped, we will ad an error. Further processing of those members is done by the annotations.

      Parameters:
        `collector` - reference to the annotation with AnnotationCollector
        `aliasAnnotationUsage` - reference to the place of usage of the alias
        `aliasAnnotated` - reference to the node that has been annotated by the alias
        `source` - source unit for error reporting
      Returns:
        list of the new AnnotationNodes