| java.lang.Object
 org.apache.lucene.index.IndexFileNames
| IndexFileNames | | final class IndexFileNames (Code) | | Useful constants representing filenames and extensions used by lucene
author:
Bernhard Messer
version:
$rcs = ' $Id: Exp $ ' ; |
| Method Summary | |
| final static String | fileNameFromGeneration(String base, String extension, long gen)
Computes the full file name from base, extension and
generation. | | final static boolean | isDocStoreFile(String fileName)
Returns true if the provided filename is one of the doc
store files (ends with an extension in
STORE_INDEX_EXTENSIONS). |
| COMPOUND_EXTENSIONS | | final static String COMPOUND_EXTENSIONS(Code) | | File extensions of old-style index files
|
| COMPOUND_FILE_EXTENSION | | final static String COMPOUND_FILE_EXTENSION(Code) | | Extension of compound file
|
| COMPOUND_FILE_STORE_EXTENSION | | final static String COMPOUND_FILE_STORE_EXTENSION(Code) | | Extension of compound file for doc store files
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| DELETABLE | | final static String DELETABLE(Code) | | Name of the index deletable file (only used in
pre-lockless indices)
|
| DELETES_EXTENSION | | final static String DELETES_EXTENSION(Code) | | Extension of deletes
|
| FIELDS_EXTENSION | | final static String FIELDS_EXTENSION(Code) | | Extension of stored fields file
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| FIELDS_INDEX_EXTENSION | | final static String FIELDS_INDEX_EXTENSION(Code) | | Extension of stored fields index file
|
| FIELD_INFOS_EXTENSION | | final static String FIELD_INFOS_EXTENSION(Code) | | Extension of field infos
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| FREQ_EXTENSION | | final static String FREQ_EXTENSION(Code) | | Extension of freq postings file
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| GEN_EXTENSION | | final static String GEN_EXTENSION(Code) | | Extension of gen file
|
| INDEX_EXTENSIONS | | final static String INDEX_EXTENSIONS(Code) | | This array contains all filename extensions used by
Lucene's index files, with two exceptions, namely the
extension made up from .f + a number and
from .s + a number. Also note that
Lucene's segments_N files do not have any
filename extension.
|
| INDEX_EXTENSIONS_IN_COMPOUND_FILE | | final static String[] INDEX_EXTENSIONS_IN_COMPOUND_FILE(Code) | | File extensions that are added to a compound file
(same as above, minus "del", "gen", "cfs").
|
| NON_STORE_INDEX_EXTENSIONS | | final static String[] NON_STORE_INDEX_EXTENSIONS(Code) | | |
| NORMS_EXTENSION | | final static String NORMS_EXTENSION(Code) | | Extension of norms file
|
| PLAIN_NORMS_EXTENSION | | final static String PLAIN_NORMS_EXTENSION(Code) | | Extension of plain norms
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| PROX_EXTENSION | | final static String PROX_EXTENSION(Code) | | Extension of prox postings file
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| SEGMENTS | | final static String SEGMENTS(Code) | | Name of the index segment file
|
| SEGMENTS_GEN | | final static String SEGMENTS_GEN(Code) | | Name of the generation reference file name
|
| SEPARATE_NORMS_EXTENSION | | final static String SEPARATE_NORMS_EXTENSION(Code) | | Extension of separate norms
|
| STORE_INDEX_EXTENSIONS | | final static String[] STORE_INDEX_EXTENSIONS(Code) | | |
| TERMS_EXTENSION | | final static String TERMS_EXTENSION(Code) | | Extension of terms file
|
| TERMS_INDEX_EXTENSION | | final static String TERMS_INDEX_EXTENSION(Code) | | Extension of terms index file
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| VECTORS_DOCUMENTS_EXTENSION | | final static String VECTORS_DOCUMENTS_EXTENSION(Code) | | Extension of vectors documents file
|
| VECTORS_FIELDS_EXTENSION | | final static String VECTORS_FIELDS_EXTENSION(Code) | | Extension of vectors fields file
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| VECTORS_INDEX_EXTENSION | | final static String VECTORS_INDEX_EXTENSION(Code) | | Extension of vectors index file
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| VECTOR_EXTENSIONS | | final static String VECTOR_EXTENSIONS(Code) | | File extensions for term vector support
|
| fileNameFromGeneration | | final static String fileNameFromGeneration(String base, String extension, long gen)(Code) | | Computes the full file name from base, extension and
generation. If the generation is -1, the file name is
null. If it's 0, the file name is .
If it's > 0, the file name is _.
Parameters:
base - -- main part of the file name
Parameters:
extension - -- extension of the filename (including .)
Parameters:
gen - -- generation |
| isDocStoreFile | | final static boolean isDocStoreFile(String fileName)(Code) | | Returns true if the provided filename is one of the doc
store files (ends with an extension in
STORE_INDEX_EXTENSIONS).
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