Java Doc for SegmentInfos.java in  » Net » lucene-connector » org » apache » lucene » index » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » lucene connector » org.apache.lucene.index   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.util.Vector    org.apache.lucene.index.SegmentInfos SegmentInfos final class SegmentInfos extends Vector (Code) Inner Class :abstract public static class FindSegmentsFile Field Summary final public static  int FORMAT      The file format version, a negative number. final public static  int FORMAT_LOCKLESS      This format adds details used for lockless commits. final public static  int FORMAT_SHARED_DOC_STORE      This format allows multiple segments to share a single vectors and stored fields file. final public static  int FORMAT_SINGLE_NORM_FILE      This format adds a "hasSingleNormFile" flag into each segment info. public  int counter      Method Summary public  Object clone()      Returns a copy of this instance, also copying each SegmentInfo. public static  long generationFromSegmentsFileName(String fileName)      Parse the generation off the segments file name and return it. public static  String getCurrentSegmentFileName(String[] files)      Get the filename of the current segments_N file from a list of files. public static  String getCurrentSegmentFileName(Directory directory)      Get the filename of the current segments_N file in the directory. public  String getCurrentSegmentFileName()      Get the segments_N filename in use by this segment infos. public static  long getCurrentSegmentGeneration(String[] files)      Get the generation (N) of the current segments_N file from a list of files. public static  long getCurrentSegmentGeneration(Directory directory)      Get the generation (N) of the current segments_N file in the directory. public static  int getDefaultGenFileRetryCount()      public static  int getDefaultGenFileRetryPauseMsec()      public static  int getDefaultGenLookahedCount()      public  long getGeneration()      public static  PrintStream getInfoStream()      public  long getLastGeneration()      public  String getNextSegmentFileName()      Get the next segments_N filename that will be written. public  long getVersion()      version number when this SegmentInfos was generated. final public  SegmentInfo info(int i)      public  SegmentInfos range(int first, int last)      Returns a new SegmentInfos containg the SegmentInfo instances in the specified range first (inclusive) to last (exclusive), so total number of segments returned is last-first. final public  void read(Directory directory, String segmentFileName)      Read a particular segmentFileName. final public  void read(Directory directory)      This version of read uses the retry logic (for lock-less commits) to find the right segments file to load. public static  long readCurrentVersion(Directory directory)      Current version number from segments file. public static  void setDefaultGenFileRetryCount(int count)      Advanced: set how many times to try loading the segments.gen file contents to determine current segment generation. public static  void setDefaultGenFileRetryPauseMsec(int msec)      Advanced: set how many milliseconds to pause in between attempts to load the segments.gen file. public static  void setDefaultGenLookaheadCount(int count)      Advanced: set how many times to try incrementing the gen when loading the segments file. public static  void setInfoStream(PrintStream infoStream)      If non-null, information about retries when loading the segments file will be printed to this. final public  void write(Directory directory)      Field Detail FORMAT final public static int FORMAT(Code) The file format version, a negative number. FORMAT_LOCKLESS final public static int FORMAT_LOCKLESS(Code) This format adds details used for lockless commits. It differs slightly from the previous format in that file names are never re-used (write once). Instead, each file is written to the next generation. For example, segments_1, segments_2, etc. This allows us to not use a commit lock. See file formats for details. FORMAT_SHARED_DOC_STORE final public static int FORMAT_SHARED_DOC_STORE(Code) This format allows multiple segments to share a single vectors and stored fields file. FORMAT_SINGLE_NORM_FILE final public static int FORMAT_SINGLE_NORM_FILE(Code) This format adds a "hasSingleNormFile" flag into each segment info. See LUCENE-756 for details. counter public int counter(Code) Method Detail clone public Object clone()(Code) Returns a copy of this instance, also copying each SegmentInfo. generationFromSegmentsFileName public static long generationFromSegmentsFileName(String fileName)(Code) Parse the generation off the segments file name and return it. getCurrentSegmentFileName public static String getCurrentSegmentFileName(String[] files) throws IOException(Code) Get the filename of the current segments_N file from a list of files. Parameters:   files - -- array of file names to check getCurrentSegmentFileName public static String getCurrentSegmentFileName(Directory directory) throws IOException(Code) Get the filename of the current segments_N file in the directory. Parameters:   directory - -- directory to search for the latest segments_N file getCurrentSegmentFileName public String getCurrentSegmentFileName()(Code) Get the segments_N filename in use by this segment infos. getCurrentSegmentGeneration public static long getCurrentSegmentGeneration(String[] files)(Code) Get the generation (N) of the current segments_N file from a list of files. Parameters:   files - -- array of file names to check getCurrentSegmentGeneration public static long getCurrentSegmentGeneration(Directory directory) throws IOException(Code) Get the generation (N) of the current segments_N file in the directory. Parameters:   directory - -- directory to search for the latest segments_N file getDefaultGenFileRetryCount public static int getDefaultGenFileRetryCount()(Code) See Also:   SegmentInfos.setDefaultGenFileRetryCount getDefaultGenFileRetryPauseMsec public static int getDefaultGenFileRetryPauseMsec()(Code) See Also:   SegmentInfos.setDefaultGenFileRetryPauseMsec getDefaultGenLookahedCount public static int getDefaultGenLookahedCount()(Code) See Also:   SegmentInfos.setDefaultGenLookaheadCount getGeneration public long getGeneration()(Code) getInfoStream public static PrintStream getInfoStream()(Code) See Also:   SegmentInfos.setInfoStream getLastGeneration public long getLastGeneration()(Code) getNextSegmentFileName public String getNextSegmentFileName()(Code) Get the next segments_N filename that will be written. getVersion public long getVersion()(Code) version number when this SegmentInfos was generated. info final public SegmentInfo info(int i)(Code) range public SegmentInfos range(int first, int last)(Code) Returns a new SegmentInfos containg the SegmentInfo instances in the specified range first (inclusive) to last (exclusive), so total number of segments returned is last-first. read final public void read(Directory directory, String segmentFileName) throws CorruptIndexException, IOException(Code) Read a particular segmentFileName. Note that this may throw an IOException if a commit is in process. Parameters:   directory - -- directory containing the segments file Parameters:   segmentFileName - -- segment file to load throws:   CorruptIndexException - if the index is corrupt throws:   IOException - if there is a low-level IO error read final public void read(Directory directory) throws CorruptIndexException, IOException(Code) This version of read uses the retry logic (for lock-less commits) to find the right segments file to load. throws:   CorruptIndexException - if the index is corrupt throws:   IOException - if there is a low-level IO error readCurrentVersion public static long readCurrentVersion(Directory directory) throws CorruptIndexException, IOException(Code) Current version number from segments file. throws:   CorruptIndexException - if the index is corrupt throws:   IOException - if there is a low-level IO error setDefaultGenFileRetryCount public static void setDefaultGenFileRetryCount(int count)(Code) Advanced: set how many times to try loading the segments.gen file contents to determine current segment generation. This file is only referenced when the primary method (listing the directory) fails. setDefaultGenFileRetryPauseMsec public static void setDefaultGenFileRetryPauseMsec(int msec)(Code) Advanced: set how many milliseconds to pause in between attempts to load the segments.gen file. setDefaultGenLookaheadCount public static void setDefaultGenLookaheadCount(int count)(Code) Advanced: set how many times to try incrementing the gen when loading the segments file. This only runs if the primary (listing directory) and secondary (opening segments.gen file) methods fail to find the segments file. setInfoStream public static void setInfoStream(PrintStream infoStream)(Code) If non-null, information about retries when loading the segments file will be printed to this. write final public void write(Directory directory) throws IOException(Code) Fields inherited from java.util.Vector protected int capacityIncrement(Code)(Java Doc) protected int elementCount(Code)(Java Doc) protected Object[] elementData(Code)(Java Doc) Methods inherited from java.util.Vector public synchronized boolean add(E e)(Code)(Java Doc) public void add(int index, E element)(Code)(Java Doc) public synchronized boolean addAll(Collection<? extends E> c)(Code)(Java Doc) public synchronized boolean addAll(int index, Collection<? extends E> c)(Code)(Java Doc) public synchronized void addElement(E obj)(Code)(Java Doc) public synchronized int capacity()(Code)(Java Doc) public void clear()(Code)(Java Doc) public synchronized Object clone()(Code)(Java Doc) public boolean contains(Object o)(Code)(Java Doc) public synchronized boolean containsAll(Collection c)(Code)(Java Doc) public synchronized void copyInto(Object[] anArray)(Code)(Java Doc) public synchronized E elementAt(int index)(Code)(Java Doc) public Enumeration<E> elements()(Code)(Java Doc) public synchronized void ensureCapacity(int minCapacity)(Code)(Java Doc) public synchronized boolean equals(Object o)(Code)(Java Doc) public synchronized E firstElement()(Code)(Java Doc) public synchronized E get(int index)(Code)(Java Doc) public synchronized int hashCode()(Code)(Java Doc) public int indexOf(Object o)(Code)(Java Doc) public synchronized int indexOf(Object o, int index)(Code)(Java Doc) public synchronized void insertElementAt(E obj, int index)(Code)(Java Doc) public synchronized boolean isEmpty()(Code)(Java Doc) public synchronized Iterator<E> iterator()(Code)(Java Doc) public synchronized E lastElement()(Code)(Java Doc) public synchronized int lastIndexOf(Object o)(Code)(Java Doc) public synchronized int lastIndexOf(Object o, int index)(Code)(Java Doc) public synchronized ListIterator<E> listIterator(int index)(Code)(Java Doc) public synchronized ListIterator<E> listIterator()(Code)(Java Doc) public boolean remove(Object o)(Code)(Java Doc) public synchronized E remove(int index)(Code)(Java Doc) public synchronized boolean removeAll(Collection c)(Code)(Java Doc) public synchronized void removeAllElements()(Code)(Java Doc) public synchronized boolean removeElement(Object obj)(Code)(Java Doc) public synchronized void removeElementAt(int index)(Code)(Java Doc) protected synchronized void removeRange(int fromIndex, int toIndex)(Code)(Java Doc) public synchronized boolean retainAll(Collection c)(Code)(Java Doc) public synchronized E set(int index, E element)(Code)(Java Doc) public synchronized void setElementAt(E obj, int index)(Code)(Java Doc) public synchronized void setSize(int newSize)(Code)(Java Doc) public synchronized int size()(Code)(Java Doc) public synchronized List<E> subList(int fromIndex, int toIndex)(Code)(Java Doc) public synchronized Object[] toArray()(Code)(Java Doc) public synchronized T[] toArray(T[] a)(Code)(Java Doc) public synchronized String toString()(Code)(Java Doc) public synchronized void trimToSize()(Code)(Java Doc)