RollbackIndexTask (Lucene 3.6.2 API)
Keywords: org.apache.lucene.benchmark.byTask.tasks.RollbackIndexTask class

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## org.apache.lucene.benchmark.byTask.tasks
Class RollbackIndexTask

    java.lang.Object
      org.apache.lucene.benchmark.byTask.tasks.PerfTask
          org.apache.lucene.benchmark.byTask.tasks.RollbackIndexTask

All Implemented Interfaces:
  Cloneable

    public class RollbackIndexTask

extends PerfTask

Rollback the index writer.

Field Summary

Fields inherited from class org.apache.lucene.benchmark.byTask.tasks.PerfTask
`logStep, NEW_LINE, params, stopNow`

Constructor Summary
`RollbackIndexTask(PerfRunData runData)`

Method Summary
`int` | `doLogic()` Perform the task once (ignoring repetitions specification) Return number of work items done by this task.

Methods inherited from class org.apache.lucene.benchmark.byTask.tasks.PerfTask
`clone, close, getBackgroundDeltaPriority, getDepth, getLogMessage, getName, getParams, getRunData, getRunInBackground, isDisableCounting, runAndMaybeStats, setDepth, setDisableCounting, setName, setParams, setRunInBackground, setup, shouldNeverLogAtStart, shouldNotRecordStats, stopNow, supportsParams, tearDown, toString`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### RollbackIndexTask

    public RollbackIndexTask(PerfRunData runData)

Method Detail

### doLogic

    public int doLogic()
                throws IOException

  Description copied from class: `PerfTask`
  Perform the task once (ignoring repetitions specification) Return number of work items done by this task. For indexing that can be number of docs added. For warming that can be number of scanned items, etc.

  Specified by:
    `doLogic` in class `PerfTask`
  Returns:
    number of work items done by this task.
  Throws:
    `IOException`

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