MessageStore支持的QueueChannel具有Spring Integration + Java Config

Question

The Spring Integration reference guide refers to using a MessageStore implementation to provide persistence to a QueueChannel.

It's mentioned many times but all examples are using XML config, ie

<int:channel id="dbBackedChannel">
    <int:queue message-store="channelStore"/>
</int:channel>

<bean id="channelStore" class="o.s.i.jdbc.store.JdbcChannelMessageStore">
    <property name="dataSource" ref="dataSource"/>
    <property name="channelMessageStoreQueryProvider" ref="queryProvider"/>
</bean>

But the implementation of QueueChannel has no methods for setting the MessageStore

So how could I create a QueueChannel with a MessageStore without using XML configuration?

Answer 1

Reverse engineered what the XML config did, and this is the answer.

You have a wrap the MessageStore in a MessageGroupQueue

So it would look something like this

@Bean
public MessageChannel messageStoreBackedChannel() {
    return new QueueChannel(
        new MessageGroupQueue(<<MessageStoreImplementation>>, "Group ID")
    );
}