package org.rrd4j.graph; import java.util.Calendar; import java.util.Locale; /** * Simplified version of DateFormat for just defining how to map a timestamp into a label for * presentation. */ public interface TimeLabelFormat { /** * Format a timestamp. * * @param calendar calendar to use for the formatter * @param locale locale that will be used with {@code String.format} * @return formatted string for the timestamp */ String format(Calendar calendar, Locale locale); }