Is there a Order Map in the lift ?

[Neil.Lv]

Hi all,

  Is there a Order Map in the lift ?

  Example:
   1-> "xx", 2 -> "yy", 3 -> "zz"

   1:) add 1-> "xx"
   Map(1-> "xx")

   2:) add 3 -> "zz"
   Map(3 -> "zz", 1-> "xx")

   3:) add 2 -> "yy"
   Map(2 -> "yy", 3 -> "zz", 1-> "xx")

   The result maybe: Map(2 -> "yy", 3 -> "zz", 1-> "xx")

    But i want the structure(order by the number) is :  Map(1-> "xx",
2 -> "yy", 3 -> "zz")

   Any help would be much appreciated !

Cheers,
  Neil
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[Neil.Lv]

  It works now !

  I use the m.toList.sort(_ < _) method to sort the result.

###
scala> var m = Map(2 -> "yy", 3 -> "zz", 1-> "xx")
scala> m.toList.sort(_ < _)
res149: List[(Int, java.lang.String)] = List((1,xx), (2,yy), (3,zz))
###

  :)

Cheers,
  Neil


On Nov 9, 3:59 pm, "Neil.Lv" <anim...@...> wrote:

> Hi all,
>
>   Is there a Order Map in the lift ?
>
>   Example:
>    1-> "xx", 2 -> "yy", 3 -> "zz"
>
>    1:) add 1-> "xx"
>    Map(1-> "xx")
>
>    2:) add 3 -> "zz"
>    Map(3 -> "zz", 1-> "xx")
>
>    3:) add 2 -> "yy"
>    Map(2 -> "yy", 3 -> "zz", 1-> "xx")
>
>    The result maybe: Map(2 -> "yy", 3 -> "zz", 1-> "xx")
>
>     But i want the structure(order by the number) is :  Map(1-> "xx",
> 2 -> "yy", 3 -> "zz")
>
>    Any help would be much appreciated !
>
> Cheers,
>   Neil

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[bearfeeder]

scala.collection.SortedMap

On Sun, Nov 8, 2009 at 11:59 PM, Neil.Lv <anim510@...> wrote:

Hi all,

 Is there a Order Map in the lift ?

 Example:
  1-> "xx", 2 -> "yy", 3 -> "zz"

  1:) add 1-> "xx"
  Map(1-> "xx")

  2:) add 3 -> "zz"
  Map(3 -> "zz", 1-> "xx")

  3:) add 2 -> "yy"
  Map(2 -> "yy", 3 -> "zz", 1-> "xx")

  The result maybe: Map(2 -> "yy", 3 -> "zz", 1-> "xx")

   But i want the structure(order by the number) is :  Map(1-> "xx",
2 -> "yy", 3 -> "zz")

  Any help would be much appreciated !

Cheers,
 Neil

--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
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Surf the harmonics

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