[ROCKETMQ-212] Class MessageExt should not be exposed to API level

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 4.0.0-incubating, 4.1.0-incubating, 4.2.0, 4.3.0
• Component/s: rocketmq-client
• Environment: All Environments
• Assignee: Xiaorui Wang
• Reporter: binzhaomobile
• Created: 04/Jun/17 03:18
• Updated: 04/Jun/17 03:18

Description

A lot of RocketMQ client API use MessageExt object as parameter, such as :
MessageListenerConcurrently#consumeMessage, MessageListenerOrderly#consumeMessage, TransactionCheckListener#checkLocalTransactionState

The class MessageExt is majorly used for carrying information internally, it contains implementation related information.This class should not be exposed to API level.