org.apache.storm.hdfs.trident.sync

## Class CountSyncPolicy

- java.lang.Object
- - org.apache.storm.hdfs.trident.sync.CountSyncPolicy

- All Implemented Interfaces:
    Serializable, SyncPolicy

      public class CountSyncPolicy
      extends Object
      implements SyncPolicy

  SyncPolicy implementation that will trigger a file system sync after a certain number of tuples have been processed.

  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `CountSyncPolicy(int count)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `mark(TridentTuple tuple, long offset)` Called for every tuple the HdfsBolt executes.
    `void` | `reset()` Called after the HdfsBolt performs a sync.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### CountSyncPolicy

          public CountSyncPolicy(int count)

  - ### Method Detail

    - #### mark

          public boolean mark(TridentTuple tuple,
                              long offset)

      Description copied from interface: `SyncPolicy`

      Called for every tuple the HdfsBolt executes.

      Specified by:
        `mark` in interface `SyncPolicy`
      Parameters:
        `tuple` - The tuple executed.
        `offset` - current offset for the file being written
      Returns:
        true if a sync should be performed

    - #### reset

          public void reset()

      Description copied from interface: `SyncPolicy`

      Called after the HdfsBolt performs a sync.

      Specified by:
        `reset` in interface `SyncPolicy`

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