Class DeleteByPercentTask
- java.lang.Object
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- org.apache.lucene.benchmark.byTask.tasks.PerfTask
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- org.apache.lucene.benchmark.byTask.tasks.DeleteByPercentTask
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- All Implemented Interfaces:
Cloneable
public class DeleteByPercentTask extends PerfTask
Deletes a percentage of documents from an index randomly over the number of documents. The parameter, X, is in percent. EG 50 means 1/2 of all documents will be deleted.NOTE: the param is an absolute percentage of maxDoc(). This means if you delete 50%, and then delete 50% again, the 2nd delete will do nothing.
Parameters:
- delete.percent.rand.seed - defines the seed to initialize Random (default 1717)
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Constructor Summary
Constructors Constructor Description DeleteByPercentTask(PerfRunData runData)
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Method Summary
All Methods Instance Methods Concrete Methods 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.void
setup()
Task setup work that should not be measured for that specific 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, getBackgroundDeltaPriority, getDepth, getLogMessage, getName, getParams, getRunData, getRunInBackground, isDisableCounting, runAndMaybeStats, setDepth, setDisableCounting, setName, setRunInBackground, shouldNeverLogAtStart, shouldNotRecordStats, stopNow, tearDown, toString
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Constructor Detail
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DeleteByPercentTask
public DeleteByPercentTask(PerfRunData runData)
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Method Detail
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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 fromPerfTask.doLogic()
to this method. Only the work done inPerfTask.doLogic()
is 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.
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setParams
public void setParams(String params)
Description copied from class:PerfTask
Set the params of this task.
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supportsParams
public boolean supportsParams()
Description copied from class:PerfTask
Sub classes that support parameters must override this method to return true.- Overrides:
supportsParams
in classPerfTask
- Returns:
- true iff this task supports command line params.
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