added drop-in replacement for InvertedList index (all_slots_view & St…

…ore#search)

lib/strokedb/store.rb

@@ -14,15 +14,21 @@ def initialize(options = {})
       initialize_files
       autosync! unless @options['noautosync']
       raise "Missing chunk storage" unless @storage
+      @all_slots_view = GenerateAllSlotsView()
     end
 
     def find(uuid, version=nil, opts = {}, &block)
       @storage.find(uuid,version,opts.merge(:store => self),&block)
     end
 
-    def search(*args)
-      return [] unless @index_store
-      @index_store.find(*args)
+    # Perform a simple search
+    # search(:a => xxx, :b => yyy, ...)
+    def search(slots)
+      slots.map do |key, value|
+        @all_slots_view.find([key, value]).to_set 
+      end.inject do |set, subset|
+        set & subset
+      end
     end
 
     def include?(uuid,version=nil)

lib/strokedb/views.rb

@@ -5,4 +5,4 @@
 require 'views/memory_view_storage'
 require 'views/file_view_storage'
 require 'views/view'
-require 'views/docs_by_meta'
+require 'views/all_slots_view'

lib/strokedb/views/all_slots_view.rb

@@ -0,0 +1,20 @@
+module StrokeDB
+  def GenerateAllSlotsView
+    View.named "strokedb_all_slots" do |view|
+      def view.map(uuid, doc)
+        doc.slotnames.inject([]) do |pairs, sname|
+          value = doc[sname]
+          if value.is_a?(Array)
+            value.inject(pairs) do |ps, v|
+              ps << [[sname, v], doc]
+              ps
+            end
+          else
+            ps << [[sname, value], doc]
+            ps
+          end
+        end
+      end
+    end
+  end
+end