Why don't we have a required flag?
Using it and throwing an Exception when this condition is violated would
avoid guard code like:
@PluginFactory
public static RegexFilter createFilter(
@PluginAttribute("regex") final Pattern regex,
@PluginAttribute("useRawMsg") final Boolean useRawMsg,
@PluginAttribute("onMatch") final Result match,
@PluginAttribute("onMismatch") final Result mismatch) {
if (regex == null) {
LOGGER.error("A regular expression must be provided for
RegexFilter");
return null;
}
return new RegexFilter(useRawMsg, regex, match, mismatch);
}
?
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