Major Description
Aggregate processor may give a control to user to process messages,which are stored in a message store, based on a correlation pattern.
To use the aggregate processor, user should write a custom correlation class and should return back the correlated messages to the processor..
For this , there are two required parameters are defined;
<parameter name="sequence">send_seq</parameter>
<parameter name="correlation.class">org.apache.synapse.message.processors.aggregate.TestCorrelation</parameter>
So, the aggregate processor configuration would be;
<messageProcessor class="org.apache.synapse.message.processors.aggregate.AggregateMessageProcessor" name="aggregateMsgPorcessor" messageStore="testMsgStore">
<parameter name="interval">20000</parameter>
<parameter name="sequence">send_seq</parameter>
<parameter name="correlation.class">org.apache.synapse.message.processors.aggregate.TestCorrelation</parameter>
</messageProcessor>
Messages will be processed based on the defined sequence(eg: send_seq)
This does not provide guaranteed delivery, since ' Forwarding processor' which provides that functionality..If user needs guaranteed delivery then he can define another 'Forwarding processor within the "sequence"..