org.apache.lucene.benchmark.byTask.tasks
Class DeleteDocTask

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

All Implemented Interfaces:

Cloneable

public class DeleteDocTask
extends PerfTask

Delete a document by docid.
Other side effects: none.
Relevant properties: doc.delete.log.step , doc.delete.step.
If no docid param is supplied, deletes doc with id = last-deleted-doc + doc.delete.step.
Takes optional param: document id.

Field Summary

static int	DEFAULT_DELETE_DOC_LOG_STEP Default value for property doc.delete.log.step - indicating how often an "deleted N docs" message should be logged.
static int	DEFAULT_DOC_DELETE_STEP Gap between ids of deleted docs, applies when no docid param is provided.

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

NEW_LINE, params

Constructor Summary

DeleteDocTask(PerfRunData runData)

Method Summary

int	doLogic() Perform the task once (ignoring repetions specification) Return number of work items done by this task.
void	setParams(String params) Set the params (docid only)
void	setup() Task setup work that should not be measured for that specific task.
boolean	supportsParams() Sub classes that supports parameters must overide this method to return true.
void	tearDown() Task tearDown work that should not be measured for that specific task.

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

clone, getDepth, getName, getParams, getRunData, isDisableCounting, runAndMaybeStats, setDepth, setDisableCounting, setName, shouldNeverLogAtStart, shouldNotRecordStats, toString

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_DOC_DELETE_STEP

public static final int DEFAULT_DOC_DELETE_STEP

Gap between ids of deleted docs, applies when no docid param is provided.

See Also:

Constant Field Values

DEFAULT_DELETE_DOC_LOG_STEP

public static final int DEFAULT_DELETE_DOC_LOG_STEP

Default value for property doc.delete.log.step - indicating how often an "deleted N docs" message should be logged.

See Also:

Constant Field Values

Constructor Detail

DeleteDocTask

public DeleteDocTask(PerfRunData runData)

Method Detail

doLogic

public int doLogic()
            throws Exception

Description copied from class: PerfTask

Perform the task once (ignoring repetions 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:

Exception

setup

public void setup()
           throws Exception

Description copied from class: PerfTask

Task setup work that should not be measured for that specific task. By default it does nothing, but tasks can implement this, moving work from doLogic() to this method. Only the work done in doLogicis measured for this task. Notice that higher level (sequence) tasks containing this task would then measure larger time than the sum of their contained tasks.

Overrides:

setup in class PerfTask

Throws:

Exception

tearDown

public void tearDown()
              throws Exception

Description copied from class: PerfTask

Task tearDown work that should not be measured for that specific task. By default it does nothing, but tasks can implement this, moving work from doLogic() to this method. Only the work done in doLogicis measured for this task. Notice that higher level (sequence) tasks containing this task would then measure larger time than the sum of their contained tasks.

Overrides:

tearDown in class PerfTask

Throws:

Exception

setParams

public void setParams(String params)

Set the params (docid only)

Overrides:

setParams in class PerfTask

Parameters:

params - docid to delete, or -1 for deleting by delete gap settings.

supportsParams

public boolean supportsParams()

Description copied from class: PerfTask

Sub classes that supports parameters must overide this method to return true.

Overrides:

supportsParams in class PerfTask

Returns:

true iff this task supports command line params.