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public interface MessagerAMessagerprovides the way for an annotation processor to report error messages, warnings, and other notices. Elements, annotations, and annotation values can be passed to provide a location hint for the message. However, such location hints may be unavailable or only approximate.Printing a message with an error kind will raise an error.
Note that the messages "printed" by methods in this interface may or may not appear as textual output to a location like
System.outorSystem.err. Implementations may choose to present this information in a different fashion, such as messages in a window.- Since:
- 1.6
- See Also:
ProcessingEnvironment.getLocale()
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description voidprintMessage(Diagnostic.Kind kind, CharSequence msg)Prints a message of the specified kind.voidprintMessage(Diagnostic.Kind kind, CharSequence msg, Element e)Prints a message of the specified kind at the location of the element.voidprintMessage(Diagnostic.Kind kind, CharSequence msg, Element e, AnnotationMirror a)Prints a message of the specified kind at the location of the annotation mirror of the annotated element.voidprintMessage(Diagnostic.Kind kind, CharSequence msg, Element e, AnnotationMirror a, AnnotationValue v)Prints a message of the specified kind at the location of the annotation value inside the annotation mirror of the annotated element.
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Method Detail
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printMessage
void printMessage(Diagnostic.Kind kind, CharSequence msg)
Prints a message of the specified kind.- Parameters:
kind- the kind of messagemsg- the message, or an empty string if none
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printMessage
void printMessage(Diagnostic.Kind kind, CharSequence msg, Element e)
Prints a message of the specified kind at the location of the element.- Parameters:
kind- the kind of messagemsg- the message, or an empty string if nonee- the element to use as a position hint
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printMessage
void printMessage(Diagnostic.Kind kind, CharSequence msg, Element e, AnnotationMirror a)
Prints a message of the specified kind at the location of the annotation mirror of the annotated element.- Parameters:
kind- the kind of messagemsg- the message, or an empty string if nonee- the annotated elementa- the annotation to use as a position hint
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printMessage
void printMessage(Diagnostic.Kind kind, CharSequence msg, Element e, AnnotationMirror a, AnnotationValue v)
Prints a message of the specified kind at the location of the annotation value inside the annotation mirror of the annotated element.- Parameters:
kind- the kind of messagemsg- the message, or an empty string if nonee- the annotated elementa- the annotation containing the annotation valuev- the annotation value to use as a position hint
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