Package groovy.util.logging
Annotation Type Slf4j
@Documented
@Retention(SOURCE)
@Target(TYPE)
public @interface Slf4j
This local transform adds a logging ability to your program using
LogBack logging. Every method call on a unbound variable named log
will be mapped to a call to the logger. For this a log field will be
inserted in the class. If the field already exists the usage of this transform
will cause a compilation error. The method name will be used to determine
what to call on the logger.
log.name(exp)is mapped to
if (log.isNameLoggable() { log.name(exp) }Here name is a place holder for info, debug, warning, error, etc. If the expression exp is a constant or only a variable access the method call will not be transformed. But this will still cause a call on the injected logger.
- Since:
- 1.8.0
-
Nested Class Summary
Nested Classes Modifier and Type Class Description static class
Slf4j.Slf4jLoggingStrategy
-
Optional Element Summary
Optional Elements Modifier and Type Optional Element Description java.lang.String
category
java.lang.Class<? extends LogASTTransformation.LoggingStrategy>
loggingStrategy
java.lang.String
value
java.lang.String
visibilityId
If specified, must match the "id" attribute in a VisibilityOptions annotation to enable a custom visibility.
-
Element Details
-
value
java.lang.String value- Default:
- "log"
-
category
java.lang.String category- Default:
- "##default-category-name##"
-
visibilityId
java.lang.String visibilityIdIf specified, must match the "id" attribute in a VisibilityOptions annotation to enable a custom visibility.- Since:
- 3.0.0
- Default:
- "<DummyUndefinedMarkerString-DoNotUse>"
-
loggingStrategy
java.lang.Class<? extends LogASTTransformation.LoggingStrategy> loggingStrategy- Default:
- groovy.util.logging.Slf4j.Slf4jLoggingStrategy.class
-