org.apache.lucene.sandbox.queries

Class DuplicateFilter

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.Filter

org.apache.lucene.sandbox.queries.DuplicateFilter

All Implemented Interfaces:

Cloneable

Deprecated.

This class will be removed in Lucene 6.0. DiversifiedTopDocsCollector should be used instead with a maximum number of hits per key equal to 1.

@Deprecated
public class DuplicateFilter
extends Filter

Filter to remove duplicate values from search results.

WARNING: for this to work correctly, you may have to wrap your reader as it cannot current deduplicate across different index segments.

See Also:

SlowCompositeReaderWrapper

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DuplicateFilter.KeepMode Deprecated. KeepMode determines which document id to consider as the master, all others being identified as duplicates.
static class	DuplicateFilter.ProcessingMode Deprecated. "Full" processing mode starts by setting all bits to false and only setting bits for documents that contain the given field and are identified as none-duplicates.

Constructor Summary

Constructors

Constructor and Description
DuplicateFilter(String fieldName) Deprecated.
DuplicateFilter(String fieldName, DuplicateFilter.KeepMode keepMode, DuplicateFilter.ProcessingMode processingMode) Deprecated.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Deprecated.
DocIdSet	getDocIdSet(LeafReaderContext context, Bits acceptDocs) Deprecated.
String	getFieldName() Deprecated.
DuplicateFilter.KeepMode	getKeepMode() Deprecated.
DuplicateFilter.ProcessingMode	getProcessingMode() Deprecated.
int	hashCode() Deprecated.
void	setFieldName(String fieldName) Deprecated.
void	setKeepMode(DuplicateFilter.KeepMode keepMode) Deprecated.
void	setProcessingMode(DuplicateFilter.ProcessingMode processingMode) Deprecated.
String	toString(String field) Deprecated.

Methods inherited from class org.apache.lucene.search.Filter

rewrite

Methods inherited from class org.apache.lucene.search.Query

clone, createWeight, getBoost, setBoost, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DuplicateFilter

public DuplicateFilter(String fieldName)

Deprecated.

DuplicateFilter

public DuplicateFilter(String fieldName,
                       DuplicateFilter.KeepMode keepMode,
                       DuplicateFilter.ProcessingMode processingMode)

Deprecated.

Method Detail

getDocIdSet

public DocIdSet getDocIdSet(LeafReaderContext context,
                            Bits acceptDocs)
                     throws IOException

Deprecated.

Specified by:

getDocIdSet in class Filter

Throws:

IOException

getFieldName

public String getFieldName()

Deprecated.

setFieldName

public void setFieldName(String fieldName)

Deprecated.

getKeepMode

public DuplicateFilter.KeepMode getKeepMode()

Deprecated.

setKeepMode

public void setKeepMode(DuplicateFilter.KeepMode keepMode)

Deprecated.

equals

public boolean equals(Object obj)

Deprecated.

Overrides:

equals in class Query

toString

public String toString(String field)

Deprecated.

Specified by:

toString in class Query

hashCode

public int hashCode()

Deprecated.

Overrides:

hashCode in class Query

getProcessingMode

public DuplicateFilter.ProcessingMode getProcessingMode()

Deprecated.

setProcessingMode

public void setProcessingMode(DuplicateFilter.ProcessingMode processingMode)

Deprecated.