我有这段代码:
val host:String = Play.configuration.getString("auth.ldap.directory.host").get
val port:java.lang.Integer = Play.configuration.getString("auth.ldap.directory.port").get.toInt
val userDNFormat:String = Play.configuration.getString("auth.ldap.userDNFormat").get
我需要添加十几个配置选项,所以我希望将它重构为:
val params = Seq("auth.ldap.directory.host", "auth.ldap.directory.port", "auth.ldap.userDNFormat")
params.map(Play.configuration.getString) match {
case host~port~userDNFormat => foo(host, port, userDNFormat)
}
我编写了代码。这样做的正确语法是什么?在地图/匹配行中,我收到此错误,我不明白:
error: type mismatch;
found : (String, Option[Set[String]]) => Option[String]
required: java.lang.String => ?
答案 0 :(得分:4)
为了匹配序列,你可以写
case Seq(host, port, userDNFormat) => foo(host, port, userDNFormat)