diff --git a/data/src/cls/Person.cls b/data/src/cls/Person.cls
new file mode 100644
index 0000000..1bd75d9
--- /dev/null
+++ b/data/src/cls/Person.cls
@@ -0,0 +1,14 @@
+// Purpose: This class stores information about traders. The Hibernate.Trade refers to this class for the detail of trader. 
+
+Class Demo.Person Extends %Persistent
+{
+
+Property FirstName As %String;
+
+Property LastName As %String;
+
+Property Phonenumber As %String;
+
+Property Trades As array Of Hibernate.Trade [ SqlFieldName = Trade ];
+
+}
diff --git a/data/src/cls/Stock.cls b/data/src/cls/Stock.cls
new file mode 100644
index 0000000..dcde2c0
--- /dev/null
+++ b/data/src/cls/Stock.cls
@@ -0,0 +1,53 @@
+// PURPOSE: This class stores information about stocks. It also contains the function to load one year of stock data. 
+
+Class Demo.Stock Extends %Persistent
+{
+
+Property TransDate As %Date;
+
+Index TDX On TransDate;
+
+Property StockOpen As %Numeric(SCALE = 4);
+
+Property High As %Numeric(SCALE = 4);
+
+Property Low As %Numeric(SCALE = 4);
+
+Property StockClose As %Numeric(SCALE = 4);
+
+Property Volume As %Integer;
+
+Property Name As %String;
+
+Index NameX On Name [ Type = bitmap ];
+
+ClassMethod LoadData(FileLocation As %String = "/tmp/irisupdate/all_stocks_1yr.csv") As %String
+{
+		set status = $$$OK
+		
+		try {
+			set stream = ##class(%Stream.FileCharacter).%New()
+			set sc = stream.LinkToFile(FileLocation)
+			set line = stream.ReadLine() //don't use headers for anything
+			while 'stream.AtEnd {
+				set line = stream.ReadLine()
+				set stock = ##class(Demo.Stock).%New()
+				set stock.TransDate = $zdateh($piece(line,",",1))
+				set stock.StockOpen = $piece(line,",",2)
+				set stock.High = $piece(line,",",3)
+				set stock.Low = $piece(line,",",4)
+				set stock.StockClose = $piece(line,",",5)
+				set stock.Volume = $piece(line,",",6) 
+				set stock.Name = $zstrip($piece(line,",",7),"*C")
+				set status = stock.%Save()
+			}
+		} catch sc {
+			write "In Catch block",!
+    		write "error code: ",sc.Code,!
+    		write "error location: ",sc.Location,!
+    		write "error data:",$LISTGET(sc.Data,2),!	
+		}
+		quit status
+}
+
+}
diff --git a/data/src/cls/Trade.cls b/data/src/cls/Trade.cls
new file mode 100644
index 0000000..30167fd
--- /dev/null
+++ b/data/src/cls/Trade.cls
@@ -0,0 +1,18 @@
+// PURPOSE: This class stores information about stocks used for connecting to InterSystems with Java Hibernate. 
+
+Class Hibernate.Trade Extends %Library.Persistent
+{
+
+Property stockName As %Library.String(MAXLEN = 10000);
+
+Property purchaseDate As %Library.Date;
+
+Property purchasePrice As %Library.Decimal;
+
+Property shares As %Library.Integer;
+
+Property trader As Demo.Person;
+
+ForeignKey traderKey(trader) References Demo.Person() [ OnDelete = cascade ];
+
+}