Java Doc for AxionFileSystem.java in  » Database-DBMS » axion » org » axiondb » io » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » axion » org.axiondb.io   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.axiondb.io.AxionFileSystem AxionFileSystem public class AxionFileSystem (Code) Axion File System, creates file input/output streams and wraps then into a custom BufferedDataStream, which improves perfermance significantly. version:    $Revision: 1.8 $ $Date: 2005/12/20 18:32:58 $ author:    Ahimanikya Satapathy Inner Class :public class PidxList Inner Class :class AxionFileInputStream extends AxionInputStream Inner Class :class AxionFileOutputStream extends AxionOutputStream Constructor Summary public   AxionFileSystem()      Method Summary public  void closeInputStream(InputStream in)      public  void closeOutputStream(OutputStream out)      public  BufferedDataOutputStream createBufferedDOS(File file)      create a new file and wrap wrap the stream with BufferedDataOutputStream which improves perfermance significantly. public  DataOutputStream createDataOutputSteam(File file)      public  boolean createNewFile(File file)      public  ObjectOutputStream createObjectOutputSteam(File file)      public  PidxList newPidxList(int count, File file, boolean readonly)      public  AxionInputStream open(File file)      Open the file in read only mode. public  AxionOutputStream open(File file, boolean overwrite)      Open file in append mode if overwrite is false, otherwise create new file. public  AxionOutputStream openAppend(File file)      Open file in append mode, position will be set to the end of file. public  BufferedDataInputStream openBufferedDIS(File file)      Open file in read only mode, position will be set to 0. public  BufferedDataOutputStream openBufferedDOS(File file, long startPos)      Open a outputsteam and points the file pointer to a given start position in the file. public  BufferedDataOutputStream openBufferedDOSAppend(File file, int bufferSize)      Open file in append mode, position will be set to the end of file. public  DataInputStream openDataInputSteam(File file)      public  ObjectInputStream openObjectInputSteam(File file)      public  IntList parseIntFile(File file)      Reads a list of int values from a file. public  PidxList parseLongPidx(File file, boolean readOnly)      Reads a list of long values from a file. public  PidxList parseUnsignedIntPidx(File file, boolean readOnly)      public  void readAll(File file, byte[] rawdata)      public  void writeIntFile(File file, IntList list)      Writes a list of int values to a file. public  void writeUnsignedInt(BufferedDataOutputStream out, long offset, int value)      Updates an UnsignedInt value to a file. public  void writeUnsignedIntFile(File file, LongList list)      Writes a list of long values to a file. Constructor Detail AxionFileSystem public AxionFileSystem()(Code) Method Detail closeInputStream public void closeInputStream(InputStream in)(Code) closeOutputStream public void closeOutputStream(OutputStream out)(Code) createBufferedDOS public BufferedDataOutputStream createBufferedDOS(File file) throws AxionException(Code) create a new file and wrap wrap the stream with BufferedDataOutputStream which improves perfermance significantly. createDataOutputSteam public DataOutputStream createDataOutputSteam(File file) throws IOException(Code) createNewFile public boolean createNewFile(File file) throws AxionException(Code) createObjectOutputSteam public ObjectOutputStream createObjectOutputSteam(File file) throws IOException(Code) newPidxList public PidxList newPidxList(int count, File file, boolean readonly) throws AxionException(Code) open public AxionInputStream open(File file) throws IOException(Code) Open the file in read only mode. open public AxionOutputStream open(File file, boolean overwrite) throws IOException(Code) Open file in append mode if overwrite is false, otherwise create new file. openAppend public AxionOutputStream openAppend(File file) throws IOException(Code) Open file in append mode, position will be set to the end of file. Creates the file if does not exist yet. openBufferedDIS public BufferedDataInputStream openBufferedDIS(File file) throws AxionException(Code) Open file in read only mode, position will be set to 0. seek can be used to perferm random access. This will wrap the stream with BufferedDataInputStream which improves perfermance significantly. openBufferedDOS public BufferedDataOutputStream openBufferedDOS(File file, long startPos) throws AxionException(Code) Open a outputsteam and points the file pointer to a given start position in the file. openBufferedDOSAppend public BufferedDataOutputStream openBufferedDOSAppend(File file, int bufferSize) throws AxionException(Code) Open file in append mode, position will be set to the end of file. Creates the file if does not exist yet. This will wrap the stream with BufferedDataOutputStream which improves perfermance significantly. openDataInputSteam public DataInputStream openDataInputSteam(File file) throws IOException(Code) openObjectInputSteam public ObjectInputStream openObjectInputSteam(File file) throws IOException(Code) parseIntFile public IntList parseIntFile(File file) throws AxionException(Code) Reads a list of int values from a file. Parameters:   file - the Fileto read from parseLongPidx public PidxList parseLongPidx(File file, boolean readOnly) throws AxionException(Code) Reads a list of long values from a file. Parameters:   file - the Fileto read from parseUnsignedIntPidx public PidxList parseUnsignedIntPidx(File file, boolean readOnly) throws AxionException(Code) readAll public void readAll(File file, byte[] rawdata) throws AxionException(Code) writeIntFile public void writeIntFile(File file, IntList list) throws AxionException(Code) Writes a list of int values to a file. Parameters:   file - the Fileto write to writeUnsignedInt public void writeUnsignedInt(BufferedDataOutputStream out, long offset, int value) throws AxionException(Code) Updates an UnsignedInt value to a file. Parameters:   raf - the Fileto append to Parameters:   offset - the pidx file offset to write Parameters:   value - data file pointer for a given pidx offset writeUnsignedIntFile public void writeUnsignedIntFile(File file, LongList list) throws AxionException(Code) Writes a list of long values to a file. Parameters:   file - the Fileto write to 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)