org.terrier.structures.indexing

Class CompressionFactory.BitCompressionConfiguration

java.lang.Object

org.terrier.structures.indexing.CompressionFactory.CompressionConfiguration

org.terrier.structures.indexing.CompressionFactory.BitCompressionConfiguration

Enclosing class:

CompressionFactory

public static class CompressionFactory.BitCompressionConfiguration
extends CompressionFactory.CompressionConfiguration

Field Summary

Fields inherited from class org.terrier.structures.indexing.CompressionFactory.CompressionConfiguration

fieldCount, fieldNames, hasBlocks, maxBlocks, structureName

Constructor Summary

Constructors

Constructor and Description
CompressionFactory.BitCompressionConfiguration(String structureName, String[] fieldNames, int hasBlocks, int maxBlocks)

Method Summary

Methods

Modifier and Type	Method and Description
Class<? extends IterablePosting>	getPostingIteratorClass() What is the posting iterator class for this structure
AbstractPostingOutputStream	getPostingOutputStream(String filename) Write a file of postings to the given location
Class<? extends PostingIndex<?>>	getStructureClass() What is the structure class for this structure
String	getStructureFileExtension() What is the file extension for this structure.
Class<? extends Iterator<IterablePosting>>	getStructureInputStreamClass() What is the input stream class for this structure

Methods inherited from class org.terrier.structures.indexing.CompressionFactory.CompressionConfiguration

writeIndexProperties

Methods inherited from class java.lang.Object

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

Constructor Detail

CompressionFactory.BitCompressionConfiguration

public CompressionFactory.BitCompressionConfiguration(String structureName,
                                              String[] fieldNames,
                                              int hasBlocks,
                                              int maxBlocks)

Method Detail

getPostingOutputStream

public AbstractPostingOutputStream getPostingOutputStream(String filename)

Description copied from class: CompressionFactory.CompressionConfiguration

Write a file of postings to the given location

Specified by:

getPostingOutputStream in class CompressionFactory.CompressionConfiguration

getPostingIteratorClass

public Class<? extends IterablePosting> getPostingIteratorClass()

Description copied from class: CompressionFactory.CompressionConfiguration

What is the posting iterator class for this structure

Specified by:

getPostingIteratorClass in class CompressionFactory.CompressionConfiguration

getStructureClass

public Class<? extends PostingIndex<?>> getStructureClass()

Description copied from class: CompressionFactory.CompressionConfiguration

What is the structure class for this structure

Specified by:

getStructureClass in class CompressionFactory.CompressionConfiguration

getStructureInputStreamClass

public Class<? extends Iterator<IterablePosting>> getStructureInputStreamClass()

Description copied from class: CompressionFactory.CompressionConfiguration

What is the input stream class for this structure

Specified by:

getStructureInputStreamClass in class CompressionFactory.CompressionConfiguration

getStructureFileExtension

public String getStructureFileExtension()

Description copied from class: CompressionFactory.CompressionConfiguration

What is the file extension for this structure. Usually ".bf" for BitFile and ".if" for files containing compressed integers

Specified by:

getStructureFileExtension in class CompressionFactory.CompressionConfiguration