Java Doc for DbDirectory.java in  » Net » lucene-connector » org » apache » lucene » store » db » 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.store.db   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.lucene.store.Directory       org.apache.lucene.store.db.DbDirectory DbDirectory public class DbDirectory extends Directory (Code) A DbDirectory is a Berkeley DB 4.3 based implementation of org.apache.lucene.store.Directory Directory . It uses two com.sleepycat.db.internal.Db Db database handles, one for storing file records and another for storing file data blocks. author:    Andi Vajda Field Summary protected  Db filesblocks      protected  int flags      protected  Set openFiles      protected  DbTxn txn      Constructor Summary public   DbDirectory(DbTxn txn, Db files, Db blocks, int flags)      Instantiate a DbDirectory. public   DbDirectory(Transaction txn, Database files, Database blocks, int flags)      public   DbDirectory(Transaction txn, Database files, Database blocks)      Method Summary public  void close()      public  IndexOutput createOutput(String name)      public  void deleteFile(String name)      public  boolean fileExists(String name)      public  long fileLength(String name)      public  long fileModified(String name)      public  void flush()      Flush the currently open files. public  String[] list()      public  Lock makeLock(String name)      public  IndexInput openInput(String name)      public  void renameFile(String from, String to)      public  void setTransaction(Transaction txn)      Once a transaction handle was committed it is no longer valid. public  void setTransaction(DbTxn txn)      Once a transaction handle was committed it is no longer valid. public  void touchFile(String name)      Field Detail filesblocks protected Db filesblocks(Code) flags protected int flags(Code) openFiles protected Set openFiles(Code) txn protected DbTxn txn(Code) Constructor Detail DbDirectory public DbDirectory(DbTxn txn, Db files, Db blocks, int flags)(Code) Instantiate a DbDirectory. The same threading rules that apply to Berkeley DB handles apply to instances of DbDirectory. Parameters:   txn - a transaction handle that is going to be used for all dboperations done by this instance. This parameter may benull. Parameters:   files - a db handle to store file records. Parameters:   blocks - a db handle to store file data blocks. Parameters:   flags - flags used for db read operations. DbDirectory public DbDirectory(Transaction txn, Database files, Database blocks, int flags)(Code) DbDirectory public DbDirectory(Transaction txn, Database files, Database blocks)(Code) Method Detail close public void close() throws IOException(Code) createOutput public IndexOutput createOutput(String name) throws IOException(Code) deleteFile public void deleteFile(String name) throws IOException(Code) fileExists public boolean fileExists(String name) throws IOException(Code) fileLength public long fileLength(String name) throws IOException(Code) fileModified public long fileModified(String name) throws IOException(Code) flush public void flush() throws IOException(Code) Flush the currently open files. After they have been flushed it is safe to commit the transaction without closing this DbDirectory instance first. See Also:   DbDirectory.setTransaction list public String[] list() throws IOException(Code) makeLock public Lock makeLock(String name)(Code) openInput public IndexInput openInput(String name) throws IOException(Code) renameFile public void renameFile(String from, String to) throws IOException(Code) setTransaction public void setTransaction(Transaction txn)(Code) Once a transaction handle was committed it is no longer valid. In order to continue using this DbDirectory instance after a commit, the transaction handle has to be replaced. Parameters:   txn - the new transaction handle to use setTransaction public void setTransaction(DbTxn txn)(Code) Once a transaction handle was committed it is no longer valid. In order to continue using this DbDirectory instance after a commit, the transaction handle has to be replaced. Parameters:   txn - the new transaction handle to use touchFile public void touchFile(String name) throws IOException(Code) Fields inherited from org.apache.lucene.store.Directory protected LockFactory lockFactory(Code)(Java Doc) Methods inherited from org.apache.lucene.store.Directory public void clearLock(String name) throws IOException(Code)(Java Doc) abstract public void close() throws IOException(Code)(Java Doc) public static void copy(Directory src, Directory dest, boolean closeDirSrc) throws IOException(Code)(Java Doc) abstract public IndexOutput createOutput(String name) throws IOException(Code)(Java Doc) abstract public void deleteFile(String name) throws IOException(Code)(Java Doc) abstract public boolean fileExists(String name) throws IOException(Code)(Java Doc) abstract public long fileLength(String name) throws IOException(Code)(Java Doc) abstract public long fileModified(String name) throws IOException(Code)(Java Doc) public LockFactory getLockFactory()(Code)(Java Doc) public String getLockID()(Code)(Java Doc) abstract public String[] list() throws IOException(Code)(Java Doc) public Lock makeLock(String name)(Code)(Java Doc) abstract public IndexInput openInput(String name) throws IOException(Code)(Java Doc) public IndexInput openInput(String name, int bufferSize) throws IOException(Code)(Java Doc) abstract public void renameFile(String from, String to) throws IOException(Code)(Java Doc) public void setLockFactory(LockFactory lockFactory)(Code)(Java Doc) abstract public void touchFile(String name) throws IOException(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)