Interface Messager

public interface Messager

A Messager provides 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.out or System.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()

Methods

Modifier and Type	Method	Description
`void`	`printMessage(Diagnostic.Kind kind, CharSequence msg)`	Prints a message of the specified kind.
`void`	`printMessage(Diagnostic.Kind kind, CharSequence msg, Element e)`	Prints a message of the specified kind at the location of the element.
`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.
`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.

Methods

printMessage

void printMessage(Diagnostic.Kind kind,
                  CharSequence msg)

Prints a message of the specified kind.

Parameters:: kind - the kind of message; msg - the message, or an empty string if none

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 message; msg - the message, or an empty string if none; e - the element to use as a position hint

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 message; msg - the message, or an empty string if none; e - the annotated element; a - the annotation to use as a position hint

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 message; msg - the message, or an empty string if none; e - the annotated element; a - the annotation containing the annotation value; v - the annotation value to use as a position hint

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https://docs.oracle.com/en/java/javase/11/docs/api/java.compiler/javax/annotation/processing/Messager.html