HostServicePropertiesImpl.java 文件源码

public Period getPeriodProperty(String key, PeriodFormatter formatter,
        ContextProperties defaults) {
    Period value = typedProperties.getPeriodProperty(key, formatter);
    if (value != null) {
        return value;
    } else {
        return typedAllPropertiesFactory.create(defaults)
                .getPeriodProperty(key);
    }
}