This figure shows the relationship between the transport message header of a native format message and the native/value pair message header attributes of a D3L file.

The transport message header of a native format message takes the following format:

POST /oai/servlet/transportServlet HTTP/1.1

Content-Type: application/x-www-form-urlencoded

Host: acme.com:8888

Content-Length: 28

D3L-Header: price

The native/value pair message header attribute of a D3L file takes the following format:

<message name="modify" object="Employee" type="modifyCommand"

header="D3L-Header" value="price"

Two arrows show the relationship between the two pieces of code:

• An arrow points from the D3L-Header parameter in the transport message header to the value D3L-Header in the header attribute of the message element of the D3L file.
• An arrow points from the price value of the D3L-Header parameter in the transport message header to the value price in the value attribute of the message element of the D3L file.