new PairCount(), bolt_Parallelism_hint).shuffleGrouping(
SequenceTopologyDef.SPLIT_BOLT_NAME,
SequenceTopologyDef.CUSTOMER_STREAM_ID);
builder.setBolt(SequenceTopologyDef.MERGE_BOLT_NAME,
new MergeRecord(), bolt_Parallelism_hint)
.fieldsGrouping(SequenceTopologyDef.TRADE_BOLT_NAME,
new Fields("ID"))
.fieldsGrouping(SequenceTopologyDef.CUSTOMER_BOLT_NAME,
new Fields("ID"));