org.apache.storm.elasticsearch.bolt

## Class EsLookupBolt

- java.lang.Object
- - org.apache.storm.topology.base.BaseComponent
  - - org.apache.storm.topology.base.BaseRichBolt
    - - org.apache.storm.topology.base.BaseTickTupleAwareRichBolt
      - - org.apache.storm.elasticsearch.bolt.AbstractEsBolt
        - - org.apache.storm.elasticsearch.bolt.EsLookupBolt

- All Implemented Interfaces:
    Serializable, IBolt, IComponent, IRichBolt

      public class EsLookupBolt
      extends AbstractEsBolt

  Basic bolt for looking up document in ES.

  Since:
    0.11
  See Also:
    Serialized Form

- - ### Field Summary

    - ### Fields inherited from class org.apache.storm.elasticsearch.bolt.AbstractEsBolt

      `client, collector, objectMapper`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `EsLookupBolt(EsConfig esConfig)` EsLookupBolt constructor.
    `EsLookupBolt(EsConfig esConfig, EsTupleMapper tupleMapper, EsLookupResultOutput output)` EsLookupBolt constructor.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer)` Declare the output schema for all the streams of this topology.
    `void` | `process(Tuple tuple)` Process a single non-tick tuple of input.

    - ### Methods inherited from class org.apache.storm.elasticsearch.bolt.AbstractEsBolt

      `prepare`

    - ### Methods inherited from class org.apache.storm.topology.base.BaseTickTupleAwareRichBolt

      `execute, onTickTuple`

    - ### Methods inherited from class org.apache.storm.topology.base.BaseRichBolt

      `cleanup`

    - ### 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`

- - ### Constructor Detail

    - #### EsLookupBolt

          public EsLookupBolt(EsConfig esConfig)

      EsLookupBolt constructor.

      Parameters:
        `esConfig` - Elasticsearch configuration containing node addresses `EsConfig`
      Throws:
        `NullPointerException` - if any of the parameters is null

    - #### EsLookupBolt

          public EsLookupBolt(EsConfig esConfig,
                              EsTupleMapper tupleMapper,
                              EsLookupResultOutput output)

      EsLookupBolt constructor.

      Parameters:
        `esConfig` - Elasticsearch configuration containing node addresses `EsConfig`
        `tupleMapper` - Tuple to ES document mapper `EsTupleMapper`
        `output` - ES response to Values mapper `EsLookupResultOutput`
      Throws:
        `NullPointerException` - if any of the parameters is null

  - ### Method Detail

    - #### process

          public void process(Tuple tuple)

      Description copied from class: `BaseTickTupleAwareRichBolt`

      Process a single non-tick tuple of input. Implementation needs to handle ack manually. More details on `IBolt.execute(Tuple)`.

      Specified by:
        `process` in class `BaseTickTupleAwareRichBolt`
      Parameters:
        `tuple` - The input tuple to be processed.

    - #### declareOutputFields

          public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer)

      Description copied from interface: `IComponent`

      Declare the output schema for all the streams of this topology.

      Specified by:
        `declareOutputFields` in interface `IComponent`
      Overrides:
        `declareOutputFields` in class `AbstractEsBolt`
      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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