commons/ocollection/oassocbdb.mli

   1 (* !!take care!!: this class does side effect, not a pure oassoc.
   2  *
   3  * Also can not put structure with ref or mutable field because when
   4  * you will modify those refs or fields, you will modify it in the memory,
   5  * not in the disk. The only way to modify on the disk is to call
   6  * #add or #replace with what you modified. Oassocbdb has no way
   7  * to know that you modified it.
   8  *)
   9 class ['a,'b] oassoc_btree :
  10   Bdb.db ->
  11   string                     (* db name, for profiling *) ->
  12   (unit -> Bdb.dbtxn option) (* transaction handler *) ->
  13   ('b -> 'e) -> ('e -> 'b)   (* marshaller/unmarshaller wrappers *) ->
  14 object('o)
  15   inherit ['a,'b] Oassoc.oassoc
  16
  17   (* ocollection concrete instantiation of virtual methods *)
  18   method empty : 'o
  19   method add : 'a * 'b -> 'o
  20
  21   method iter : ('a * 'b -> unit) -> unit
  22   method view : ('a * 'b, 'o) Ocollection.view
  23
  24   method del : 'a * 'b -> 'o
  25   method mem : 'a * 'b -> bool
  26   method null : bool
  27
  28   (* oassoc concrete instantiation of virtual methods *)
  29   method assoc : 'a -> 'b
  30   method delkey : 'a -> 'o
  31
  32   method keys: 'a list
  33
  34 end
  35
  36 val create_bdb:
  37   string ->
  38   string ->
  39   Bdb.dbenv ->
  40   (unit -> Bdb.dbtxn option) ->
  41   ('a -> 'b) * ('c -> 'a) ->
  42   int ->
  43   Bdb.db * ('d, 'a) Oassoc_buffer.oassoc_buffer