File Doc Category Size Date Package
DeleteDocTask.java API Doc Apache Lucene 2.2.0 3383 Sat Jun 16 22:20:58 BST 2007 org.apache.lucene.benchmark.byTask.tasks

DeleteDocTask

java.lang.Object
- PerfTask

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.

Fields Summary
public static final int
DEFAULT_DOC_DELETE_STEP
Gap between ids of deleted docs, applies when no docid param is provided.
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.
private static int
logStep
private static int
deleteStep
private static int
numDeleted
private static int
lastDeleted
private int
docid
private boolean
byStep
Constructors Summary
public DeleteDocTask(org.apache.lucene.benchmark.byTask.PerfRunData runData)
super(runData);
Methods Summary
public int doLogic()
getRunData().getIndexReader().deleteDocument(docid); lastDeleted = docid; return 1; // one work item done here
private void log(int count)
if (logStep>0 && (count%logStep)==0) { System.out.println("--> processed (delete) "+count+" docs, last deleted: "+lastDeleted); }
public void setParams(java.lang.String params)
Set the params (docid only)
param
params docid to delete, or -1 for deleting by delete gap settings.
super.setParams(params); docid = (int) Float.parseFloat(params); byStep = (docid < 0);
public void setup()
super.setup(); // one time static initializations if (logStep<0) { logStep = getRunData().getConfig().get("doc.delete.log.step",DEFAULT_DELETE_DOC_LOG_STEP); } if (deleteStep<0) { deleteStep = getRunData().getConfig().get("doc.delete.step",DEFAULT_DOC_DELETE_STEP); } // set the docid to be deleted docid = (byStep ? lastDeleted + deleteStep : docid);
public boolean supportsParams()
return true;
public void tearDown()
log(++numDeleted); super.tearDown();