groovy.util.logging
[Java] Annotation Type Log4j
java.lang.Object
groovy.util.logging.Log4j
@Retention(RetentionPolicy.SOURCE)
@Target({ElementType.TYPE})
@GroovyASTTransformationClass("org.codehaus.groovy.transform.LogASTTransformation")
public @interface Log4j
This local transform adds a logging ability to your program using
Log4j 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.isNameEnabled() {
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.
- Authors:
- Hamlet D'Arcy
- Tomek Bujok
- Since:
- 1.8.0
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