Package org.apache.storm.jdbc.bolt
Class JdbcLookupBolt
- All Implemented Interfaces:
Serializable
,IBolt
,IComponent
,IRichBolt
Basic bolt for querying from any database.
- See Also:
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Field Summary
Fields inherited from class org.apache.storm.jdbc.bolt.AbstractJdbcBolt
collector, configKey, connectionProvider, jdbcClient, queryTimeoutSecs
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Constructor Summary
ConstructorDescriptionJdbcLookupBolt
(ConnectionProvider connectionProvider, String selectQuery, JdbcLookupMapper jdbcLookupMapper) -
Method Summary
Modifier and TypeMethodDescriptionvoid
declareOutputFields
(OutputFieldsDeclarer outputFieldsDeclarer) Declare the output schema for all the streams of this topology.protected void
Process a single non-tick tuple of input.withQueryTimeoutSecs
(int queryTimeoutSecs) Methods inherited from class org.apache.storm.jdbc.bolt.AbstractJdbcBolt
cleanup, prepare
Methods inherited from class org.apache.storm.topology.base.BaseTickTupleAwareRichBolt
execute, onTickTuple
Methods inherited from class org.apache.storm.topology.base.BaseComponent
getComponentConfiguration
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.storm.topology.IComponent
getComponentConfiguration
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Constructor Details
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JdbcLookupBolt
public JdbcLookupBolt(ConnectionProvider connectionProvider, String selectQuery, JdbcLookupMapper jdbcLookupMapper)
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Method Details
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withQueryTimeoutSecs
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process
Description copied from class:BaseTickTupleAwareRichBolt
Process a single non-tick tuple of input. Implementation needs to handle ack manually. More details onIBolt.execute(Tuple)
.- Specified by:
process
in classBaseTickTupleAwareRichBolt
- Parameters:
tuple
- The input tuple to be processed.
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declareOutputFields
Description copied from interface:IComponent
Declare the output schema for all the streams of this topology.- Parameters:
outputFieldsDeclarer
- this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream
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