1 files changed, 20 insertions, 0 deletions
diff --git a/src/specification.coffee b/src/specification.coffee
new file mode 100644
index 0000000..3cdd1dc
--- /dev/null
+++ b/src/specification.coffee
@@ -0,0 +1,20 @@
+module.exports = class OrSpecification
+  constructor: (left, right) ->
+    @left = left
+    @right = right
+
+  matches: (item) ->
+    @left.matches(item) || @right.matches(item)
+
+module.exports = class WhereSpecification
+  constructor: (condition) ->
+    @condition = condition
+
+  matches: (item) ->
+    for key in Object.keys(@condition)
+      return false if item[key] != @condition[key]
+    return true
+
+  or: (other_specification) ->
+    new OrSpecification(this, other_specification)
+