org.apache.lucene.codecs.autoprefix

Class AutoPrefixPostingsFormat

java.lang.Object

org.apache.lucene.codecs.PostingsFormat

org.apache.lucene.codecs.autoprefix.AutoPrefixPostingsFormat

All Implemented Interfaces:

NamedSPILoader.NamedSPI

public final class AutoPrefixPostingsFormat
extends PostingsFormat

Just like Lucene50PostingsFormat except this format exposes the experimental auto-prefix terms.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields inherited from class org.apache.lucene.codecs.PostingsFormat

EMPTY

Constructor Summary

Constructors

Constructor and Description
AutoPrefixPostingsFormat() Creates AutoPrefixPostingsFormat with default settings.
AutoPrefixPostingsFormat(int minItemsInAutoPrefix, int maxItemsInAutoPrefix) Creates Lucene50PostingsFormat with custom values for minBlockSize and maxBlockSize passed to block terms dictionary.
AutoPrefixPostingsFormat(int minItemsInBlock, int maxItemsInBlock, int minItemsInAutoPrefix, int maxItemsInAutoPrefix) Creates Lucene50PostingsFormat with custom values for minBlockSize, maxBlockSize, minItemsInAutoPrefix and maxItemsInAutoPrefix, passed to block tree terms dictionary.

Method Summary

Modifier and Type	Method and Description
FieldsConsumer	fieldsConsumer(SegmentWriteState state)
FieldsProducer	fieldsProducer(SegmentReadState state)
String	toString()

Methods inherited from class org.apache.lucene.codecs.PostingsFormat

availablePostingsFormats, forName, getName, reloadPostingsFormats

Methods inherited from class java.lang.Object

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

Constructor Detail

AutoPrefixPostingsFormat

public AutoPrefixPostingsFormat()

Creates AutoPrefixPostingsFormat with default settings.

AutoPrefixPostingsFormat

public AutoPrefixPostingsFormat(int minItemsInAutoPrefix,
                                int maxItemsInAutoPrefix)

Creates Lucene50PostingsFormat with custom values for minBlockSize and maxBlockSize passed to block terms dictionary.

See Also:

BlockTreeTermsWriter.BlockTreeTermsWriter(SegmentWriteState,PostingsWriterBase,int,int)

AutoPrefixPostingsFormat

public AutoPrefixPostingsFormat(int minItemsInBlock,
                                int maxItemsInBlock,
                                int minItemsInAutoPrefix,
                                int maxItemsInAutoPrefix)

Creates Lucene50PostingsFormat with custom values for minBlockSize, maxBlockSize, minItemsInAutoPrefix and maxItemsInAutoPrefix, passed to block tree terms dictionary.

See Also:

BlockTreeTermsWriter.BlockTreeTermsWriter(SegmentWriteState,PostingsWriterBase,int,int,int,int)

Method Detail

toString

public String toString()

Overrides:

toString in class PostingsFormat

fieldsConsumer

public FieldsConsumer fieldsConsumer(SegmentWriteState state)
                              throws IOException

Specified by:

fieldsConsumer in class PostingsFormat

Throws:

IOException

fieldsProducer

public FieldsProducer fieldsProducer(SegmentReadState state)
                              throws IOException

Specified by:

fieldsProducer in class PostingsFormat

Throws:

IOException