Package org.apache.storm.drpc
Class PrepareRequest
- java.lang.Object
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- org.apache.storm.topology.base.BaseComponent
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- org.apache.storm.topology.base.BaseBasicBolt
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- org.apache.storm.drpc.PrepareRequest
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- All Implemented Interfaces:
Serializable,IBasicBolt,IComponent
public class PrepareRequest extends BaseBasicBolt
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static StringARGS_STREAMstatic StringID_STREAMstatic StringRETURN_STREAM
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Constructor Summary
Constructors Constructor Description PrepareRequest()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voiddeclareOutputFields(OutputFieldsDeclarer declarer)Declare the output schema for all the streams of this topology.voidexecute(Tuple tuple, BasicOutputCollector collector)Process the input tuple and optionally emit new tuples based on the input tuple.voidprepare(Map<String,Object> map, TopologyContext context)-
Methods inherited from class org.apache.storm.topology.base.BaseBasicBolt
cleanup
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Methods inherited from class org.apache.storm.topology.base.BaseComponent
getComponentConfiguration
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.storm.topology.IComponent
getComponentConfiguration
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Field Detail
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ARGS_STREAM
public static final String ARGS_STREAM
- See Also:
- Constant Field Values
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RETURN_STREAM
public static final String RETURN_STREAM
- See Also:
- Constant Field Values
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ID_STREAM
public static final String ID_STREAM
- See Also:
- Constant Field Values
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Method Detail
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prepare
public void prepare(Map<String,Object> map, TopologyContext context)
- Specified by:
preparein interfaceIBasicBolt- Overrides:
preparein classBaseBasicBolt
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execute
public void execute(Tuple tuple, BasicOutputCollector collector)
Description copied from interface:IBasicBoltProcess the input tuple and optionally emit new tuples based on the input tuple.All acking is managed for you. Throw a FailedException if you want to fail the tuple.
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declareOutputFields
public void declareOutputFields(OutputFieldsDeclarer declarer)
Description copied from interface:IComponentDeclare the output schema for all the streams of this topology.- Parameters:
declarer- 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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