spring integration - using gateway for starting transaction -


i have been following previous answers talk inserting gateway / service-activator start new transaction mid way in si processing. have tried below code reason not work, if point error in configuration please.

all threads seems waiting happen , sp outbound gateway not invoked, cant figure out what.

the idea here process each task produced splitter in thread pool under new transaction.

<int:splitter...output-channel="taskchannel"/> <int:channel id="taskchannel">         <int:dispatcher task-executor="taskexecutor"/>                </int:channel>        <int:gateway id="txgw"  service-interface="com.some.test.starttransactionalgateway"     default-request-channel="taskchannel" default-reply-channel="individualtask">                                    </int:gateway>       <int:service-activator ref="txgw"              input-channel="taskchannel"             output-channel="individualtask"              method="starttx"             auto-startup="true"> </int:service-activator>              <int-jdbc:stored-proc-outbound-gateway ...request-channel="individualtask" .....  interface starttransactionalgateway {      @transactional       message<?> starttx(message<?> m);  } 

default-request-channel="taskchannel" gateway sending messages itself.

you can't mix channels in subflow main channels. need like...

<int:splitter...output-channel="taskchannel"/>  <int:channel id="taskchannel">     <int:dispatcher task-executor="taskexecutor"/>                </int:channel>         <int:service-activator ref="txgw"          input-channel="taskchannel"         output-channel="wherewewanttheresultstogo"          method="starttx"         reply-timeout="0"         auto-startup="true" />  <int:gateway id="txgw"  service-interface="com.some.test.starttransactionalgateway"     default-request-channel="tostoredproc" />                                 <int-jdbc:stored-proc-outbound-gateway ...request-channel="tostoredprod" ..... 

you don't need default-reply-channel; omit reply-channel on stored proc gateway , reply automatically go back.


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