Class JdbcInsertBolt

All Implemented Interfaces:
Serializable, IBolt, IComponent, IRichBolt

public class JdbcInsertBolt extends AbstractJdbcBolt
Basic bolt for writing to any Database table.

Note: Each JdbcInsertBolt defined in a topology is tied to a specific table.

See Also:
  • Constructor Details

  • Method Details

    • withTableName

      public JdbcInsertBolt withTableName(String tableName)
    • withInsertQuery

      public JdbcInsertBolt withInsertQuery(String insertQuery)
    • withQueryTimeoutSecs

      public JdbcInsertBolt withQueryTimeoutSecs(int queryTimeoutSecs)
    • prepare

      public void prepare(Map<String,Object> map, TopologyContext topologyContext, OutputCollector collector)
      Description copied from class: AbstractJdbcBolt
      Subclasses should call this to ensure output collector and connection provider are set up, and finally jdbcClient is initialized properly.

      Called when a task for this component is initialized within a worker on the cluster. It provides the bolt with the environment in which the bolt executes.

      This includes the:

      Specified by:
      prepare in interface IBolt
      prepare in class AbstractJdbcBolt
      map - The Storm configuration for this bolt. This is the configuration provided to the topology merged in with cluster configuration on this machine.
      topologyContext - This object can be used to get information about this task's place within the topology, including the task id and component id of this task, input and output information, etc.
      collector - The collector is used to emit tuples from this bolt. Tuples can be emitted at any time, including the prepare and cleanup methods. The collector is thread-safe and should be saved as an instance variable of this bolt object.
    • process

      protected 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
      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.
      outputFieldsDeclarer - this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream