HeartbeatGenerator is a JMS message producer that periodically generates messages according to the predefined occurrence policies. It contains a list of Occurrence on the time sequence and name, etc. Each outgoing message has the name and the time signatures. These messages can be used to trigger other actions down the stream.

Apart from the common properties, there are many implementation specific properties for HeartbeatGenerator.

Property Name	Data Type	Requirement	Description	Examples
Heartbeat	integer	optional	default interval in second to generate messages	30 (default: 60)
Occurrence	list	mandatory	list of occurrences	see example

where Occurrence lists all occurrences. Here is the schema for the Occurrence:

Property Name	Data Type	Requirement	Description	Examples
Name	string	mandatory	name of the occurrence	5min
Heartbeat	integer	optional	interval in second to generate messages	30 (default: 60)
TextMode	integer	optional	flag to determine message family	0 (default: 1 for TextMessage)
OverflowOption	integer	optional	flag for overflow option	0 (default: 1 for keep new)
StringProperty	map	optional	to set properties	see example
MessageBody	String	optional	template for message body	see example

Here is an example of HeartbeatGenerator:

{
  "Name": "rcvr_heartbeat",
  "ClassName": "org.qbroker.receiver.HeartbeatGenerator",
  "URI": "hb://localhost",
  "LinkName": "root",
  "Operation": "generate",
  "Heartbeat": "60",
  "DisplayMask": "0",
  "Mode": "daemon",
  "TextMode": "1",
  "XAMode": "1",
  "Occurrence": [{
    "Name": "test60",
    "Heartbeat": "60"
  },{
    "Name": "test90",
    "Heartbeat": "90"
  }]
}