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Generating a Message |
It's easy to create a message and populate it with data in Chameleon. First you must create an instance of the message object.
To do this, you must use a generated method on the Engine object associated with the message object of the form New<Message Name>. This code fragment illustrates the technique:
Private Sub GeneratePatientUpdateMessage() On Error GoTo ErrorHandler Dim Message As HL7MsgPatientUpdate ' We cannot instantiate the message object directly, instead ' we use the engine NewXXX methods. Set Message = Engine.NewPatientUpdate ' Then we add one row to the table. |
The tables in the message are then populated by using the Add method to add rows to each of the tables and table groups in the message.
The following code fragment shows an example of populating a message in Visual Basic:
Dim FlatWire As String Message.Patient.Add ' And set some details. ' Notice that index 1 is the first row. Message.Patient(1).ID = "ID" Message.Patient(1).Title = "Mr" Message.Patient(1).GivenName = "Bruce" Message.Patient(1).FamilyName = "Willis" Message.InsGrp.Add Message.InsGrp.Guarantor.Add Message.InsGrp.Guarantor.Add Message.InsGrp(1).Guarantor(1).ID = "2344" Message.InsGrp(1).Guarantor(2).ID = "2323" 'Generate the actual HL7 message string. FlatWire = Message.GenerateFlatWire |
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One common mistake made by new users of Chameleon is to forget that Add must be invoked on table group parents before rows can be added to table objects they contain. | ||
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