* This is an example of ILogger implementation, tracking count of error messages....Note: The samples on this page are Java classes from the GroupDocs.Redaction for Java API. Use them from Node.js via Java by placing the classes on the JVM classpath, or by wrapping the same interfaces with java.newProxy. You can implement ILogger interface from com.groupdocs.redaction.options package. This interface requires to implement three methods: import com.groupdocs.redaction.options.ILogger; import java.util.ArrayList; /** * <p> * This is an example of ILogger implementation, tracking count of error messages.