com.aliyun.mq.http

类 MQTransProducer

java.lang.Object

com.aliyun.mq.http.MQProducer

com.aliyun.mq.http.MQTransProducer

public class MQTransProducer
extends MQProducer

transaction producer

字段概要

字段

限定符和类型	字段和说明
protected String	groupId

从类继承的字段 com.aliyun.mq.http.MQProducer

credentials, endpoint, instanceId, serviceClient, topicName, topicURL

构造器概要

构造器

限定符	构造器和说明
protected	MQTransProducer(String instanceId, String topicName, String groupId, com.aliyun.mq.http.common.http.ServiceClient client, com.aliyun.mq.http.common.auth.ServiceCredentials credentials, URI endpoint)

方法概要

限定符和类型	方法和说明
AsyncResult<List<Message>>	asyncConsumeHalfMessage(int num, int pollingSecond, AsyncCallback<List<Message>> callback) consume half message to check transaction status, three choice: commit(String) , rollback(String) or do nothing (will get the message again after nextConsumeTime).
void	commit(String handle) commit transaction msg, the consumer will receive the msg.
List<Message>	consumeHalfMessage(int num, int pollingSecond) consume half message to check transaction status, three choice: commit(String) , rollback(String) or do nothing (after 10s will get the message again).
void	rollback(String handle) rollback transaction msg, the consumer will not receive the msg.
String	toString()

从类继承的方法 com.aliyun.mq.http.MQProducer

asyncPublishMessage, checkMessage, getInstanceId, getTopicName, publishMessage

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

字段详细资料

groupId

protected final String groupId

构造器详细资料

MQTransProducer

protected MQTransProducer(String instanceId,
                          String topicName,
                          String groupId,
                          com.aliyun.mq.http.common.http.ServiceClient client,
                          com.aliyun.mq.http.common.auth.ServiceCredentials credentials,
                          URI endpoint)

参数:

instanceId, - instance id

topicName, - topic name

client, - ServiceClient object

credentials, - ServiceCredentials object

endpoint, - user mq http endpoint, ie: http://uid.mqrest.region.aliyuncs.com/

方法详细资料

consumeHalfMessage

public List<Message> consumeHalfMessage(int num,
                                        int pollingSecond)
                                 throws ServiceException,
                                        ClientException

consume half message to check transaction status, three choice: commit(String) , rollback(String) or do nothing (after 10s will get the message again).

参数:

num - the count of messages consumed once value: 1~16

pollingSecond - if greater than 0, means the time(second) the request holden at server if there is no message to consume. If less or equal 0, means the server will response back if there is no message to consume. value: 1~30

抛出:

ServiceException - Exception from server

ClientException - Exception from client

asyncConsumeHalfMessage

public AsyncResult<List<Message>> asyncConsumeHalfMessage(int num,
                                                          int pollingSecond,
                                                          AsyncCallback<List<Message>> callback)

consume half message to check transaction status, three choice: commit(String) , rollback(String) or do nothing (will get the message again after nextConsumeTime).

参数:

num - the count of messages consumed once value: 1~16

pollingSecond - if greater than 0, means the time(second) the request holden at server if there is no message to consume. If less or equal 0, means the server will response back if there is no message to consume. value: 1~30

callback, - user callback object

返回:

AsyncResult, you can get the result blocked.

commit

public void commit(String handle)
            throws ServiceException,
                   ClientException

commit transaction msg, the consumer will receive the msg.

参数:

handle - msg handle

抛出:

ServiceException - Exception from server

ClientException - Exception from client

rollback

public void rollback(String handle)
              throws ServiceException,
                     ClientException

rollback transaction msg, the consumer will not receive the msg.

参数:

handle - msg handle

抛出:

ServiceException - Exception from server

ClientException - Exception from client

toString

public String toString()

覆盖:

toString 在类中 MQProducer