JMS Header Fields
EMS supports the predefined JMS header fields.
For more information, see JMS Message Header Fields.
The JMS header JMSTimestamp corresponds to the time when the message was created. If this header field is not present when the tibemsd receives the message, it sets theJMSTimestamp to the current time.
TIBCO FTL messages do not have destinations or subjects, or a mandatory set of predefined header fields. Instead, message fields and their values are set for individual messages.
If the export_headers is defined as true in the common EMS transport properties, the EMS server converts the JMS header fields and their values to TIBCO FTL fields and values and adds them to the outgoing message. This allows TIBCO FTL to use content matchers on the fields.
If the export_headers property is false, then the JMS header fields and their values are not included in the exported TIBCO FTL message. This includes the destination name. That is, if export_headers = false for the transport, then the message exported to TIBCO FTL will not contain the destination name.
When converting the JMS header fields to TIBCO FTL message fields, header fields are given the prefix _emshdr:. For example, the JMSDeliveryMode header field is assigned the field name _emshdr:JMSDeliveryMode when inserted into the TIBCO FTL message.
The following table presents the mapping of JMS header fields to TIBCO FTL message field name and types (that is, the name and type of the corresponding field in the exported message).
| JMS Header Name | TIBCO FTL Field Name | FTL Field Type |
|---|---|---|
| JMSDestination | _emsHdr:JMSDestination | char* |
| JMSDeliveryMode | _emsHdr:JMSDeliveryMode | tibint64_t |
| JMSPriority | _emsHdr:JMSPriority | tibint64_t |
| JMSMessageID | _emsHdr:JMSMessageID | char* |
| JMSTimestamp | _emsHdr:JMSTimestamp | tibint64_t |
| JMSCorrelationID | _emsHdr:JMSCorrelationID | char* |
| JMSType | _emsHdr:JMSType | char* |
| JMSDeliveryTime | _emsHdr:JMSDeliveryTime | tibint64_t |
| JMSExpiration | _emsHdr:JMSExpiration | tibint64_t |
| JMSRedelivered | _emsHdr:JMSRedelivered | tibint64_t |
| JMSReplyTo | _emsHdr:JMSReplyTo | char* |