Package org.apache.storm.hdfs.bolt.sync

# Interface SyncPolicy

All Superinterfaces:
  `Serializable`

All Known Implementing Classes:
  `CountSyncPolicy`

public interface SyncPolicy extends Serializable
Interface for controlling when the HdfsBolt syncs and flushes the filesystem.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `mark(Tuple tuple, long offset)`
  Called for every tuple the HdfsBolt executes.
  `void`
  `reset()`
  Called after the HdfsBolt performs a sync.

- ## Method Details

  - ### mark

    boolean mark(Tuple tuple, long offset)
    Called for every tuple the HdfsBolt executes.
    Parameters:
      `tuple` - The tuple executed.
      `offset` - current offset for the file being written
    Returns:
      true if a sync should be performed

  - ### reset

    void reset()
    Called after the HdfsBolt performs a sync.