Annotation

Introducing LOKI annotation package related classes (for more detailed descriptions, click to view source code comments).

Annotation class package：

👉 loki-annotation

@MessageName

• Description: message name annotation

Attributes	Type	Required	Default	Description
topic	String	YES	none	Topic name
tag	String	NO	""	Tag
producer	String	NO	"defaultProducer"	Producer
deliveryTimestamp	long	NO	0	Delay time
consumerGroup	String	NO	"defaultConsumerGroup"	Consumer group
consumptionThreadCount	int	NO	20	Number of threads consumed
maxCacheMessageCount	int	NO	1024	Maximum number of cached messages

@MessageKey

• Description: message key annotation

Attributes	Type	Required	Default	Description
value	String	NO	""	Field name (the value can be none)

@SendMessage

• Description：Send message annotation

Attributes	Type	Required	Default	Description
topic	String	YES	none	Topic name
async	boolean	NO	false	Asynchronous send or not
message	String	YES	""	Send a message, supporting SPEL expression
messageKey	String	NO	""	Message key, which supports SPEL expression
tag	String	NO	""	Tag
producer	String	NO	"defaultProducer"	Producer
deliveryTimestamp	long	NO	0	Delay time

@MessageListener

• Description: Message receiving annotation

Attributes	Type	Required	Default	Description
topic	String	NO	none	Topic name Both topicPattern must have a value, topicPattern has higher precedence）
topicPattern	String	NO	none	Topic Pattern name （Both topicPattern must have a value, topicPattern has higher precedence）
tag	String	NO	""	TAG
consumerGroup	String	NO	"defaultConsumerGroup"	Consumer group
consumptionThreadCount	int	NO	20	Number of threads consumed
maxCacheMessageCount	int	NO	1024	Maximum number of cached messages