JMS formats

To write code that can access the different JMS message types, we need to know how each message type is mapped to SDO, and how to retrieve the message format string from the message.

Format types

Each JMS message type is defined by a message format string within the message. We can retrieve the format string using the code snippet in the following example . The table shows the mapping of message format strings to Service Data Objects (SDO):

JMS Message type	Message format string	Mapping to SDO1
JMS Bytes message	JMS:bytes	See JMS Formats - bytes
JMS Text message	JMS:text	See JMS Formats - text
JMS Stream message	JMS:stream	See JMS formats - Stream
JMS Object message	JMS:object	See JMS Formats - object
JMS Map message	JMS:map	The retrieval or construction of SDO data graphs for JMS map messages is not supported.

¹ The version of SDO supported by mediations is Version 1.

This code snippet is an example of how to retrieve the message format string from the message:

String format = siMsg.getFormat();
if (format.equals ....