added changes on checking similarity

base/api/haystack.py

@@ -0,0 +1,19 @@
+
+class haystack:
+    
+    """ haystack represents a single entry in the database 
+    it contains a sequence of integers """
+        
+    def __init__(self,name,data):
+        self.name=name
+        self.data=data
+        self.length = len(data)
+        
+    def get_data(self):
+        return self.data
+    
+    def get_name(self):
+        return self.name
+    
+    def get_length(self):
+        return self.length