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builder.setspout("words", new testwordspout(), ); builder.setbolt("exclaim ", new exclamationbolt(), ) .shufflegrouping("words"); builder.setbolt("exclaim ", new exclamationbolt(), ) .shufflegrouping("exclaim "); this topology contains a spout and two bolts. the spout emits words, and each bolt appends the string
for emitting new messages into the topology. testwordspout in this topology emits a random word from the list ["nathan", "mike", "jackson", "golda", "bertels"] as a -tuple every ms. the implementation of nexttuple() in testwordspout looks like this: public void nexttuple() { utils.sleep( ); final string...
http://storm.apache.org/releases/current/Tutorial.html
builder.setspout("words", new testwordspout(), ); builder.setbolt("exclaim ", new exclamationbolt(), ) .shufflegrouping("words"); builder.setbolt("exclaim ", new exclamationbolt(), ) .shufflegrouping("exclaim "); this topology contains a spout and two bolts. the spout emits words, and each bolt appends the string
for emitting new messages into the topology. testwordspout in this topology emits a random word from the list ["nathan", "mike", "jackson", "golda", "bertels"] as a -tuple every ms. the implementation of nexttuple() in testwordspout looks like this: public void nexttuple() { utils.sleep( ); final string...
https://storm.apache.org/releases/current/Tutorial.html