Package org.apache.lucene.benchmark.byTask.tasks

Class OpenIndexTask

java.lang.Object

org.apache.lucene.benchmark.byTask.tasks.PerfTask

org.apache.lucene.benchmark.byTask.tasks.OpenIndexTask

All Implemented Interfaces:

Cloneable

public class OpenIndexTask
extends PerfTask

Open an index writer.
Other side effects: index writer object in perfRunData is set.
Relevant properties: merge.factor, max.buffered, max.field.length, ram.flush.mb [default 0].

Accepts a param specifying the commit point as previously saved with CommitIndexTask. If you specify this, it rolls the index back to that commit on opening the IndexWriter.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_MAX_BUFFERED
static final int	DEFAULT_MERGE_PFACTOR
static final double	DEFAULT_RAM_FLUSH_MB

Fields inherited from class org.apache.lucene.benchmark.byTask.tasks.PerfTask

logStep, NEW_LINE, params, stopNow

Constructor Summary

Constructors

Constructor	Description
OpenIndexTask(PerfRunData runData)

Method Summary

Modifier and Type	Method	Description
int	doLogic()	Perform the task once (ignoring repetitions specification) Return number of work items done by this task.
void	setParams(String params)	Set the params of this task.
boolean	supportsParams()	Sub classes that support parameters must override this method to return true.

Methods inherited from class org.apache.lucene.benchmark.byTask.tasks.PerfTask

clone, close, getAlgLineNum, getBackgroundDeltaPriority, getDepth, getLogMessage, getName, getParams, getRunData, getRunInBackground, isDisableCounting, runAndMaybeStats, setAlgLineNum, setDepth, setDisableCounting, setName, setRunInBackground, setup, shouldNeverLogAtStart, shouldNotRecordStats, stopNow, tearDown, toString

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

DEFAULT_MAX_BUFFERED

public static final int DEFAULT_MAX_BUFFERED

See Also:

• Constant Field Values

DEFAULT_MERGE_PFACTOR

public static final int DEFAULT_MERGE_PFACTOR

See Also:

• Constant Field Values

DEFAULT_RAM_FLUSH_MB

public static final double DEFAULT_RAM_FLUSH_MB

See Also:

• Constant Field Values

Constructor Details

OpenIndexTask

public OpenIndexTask(PerfRunData runData)

Method Details

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

setParams

public void setParams(String params)

Description copied from class: PerfTask

Set the params of this task.

Overrides:

setParams in class PerfTask

supportsParams

public boolean supportsParams()

Description copied from class: PerfTask

Sub classes that support parameters must override this method to return true.

Overrides:

supportsParams in class PerfTask

Returns:

true iff this task supports command line params.