Field Detail

• recordsFile

  public File recordsFile

• oof

  public FileOutputStream oof

• oos

  public ObjectOutputStream oos

Constructor Detail

• HFileXML

  public HFileXML(String file,
                  String option,
                  int bufferSize)

  Open a XML file to write or read objects to/from a serialized file in sequential order. If "w" option is set, the old file will be removed. Use close() to flash the buffer and close the file. You can set buffer size for I/O . Make it larger for a heavy I/O. It is best to use buffer sizes that are multiples of 1024 bytes. That works best with most built-in buffering in hard disks.

  File extension is *.jxml

  You can also insert objects using the keys and read them back. In this case, avoid writing many objects without the keys since the extraction of keys will be very inefficient. Try not mix write/read with keys or without.

  Parameters:

  file - File name

  option - Option to create the file . If "w" - write a file (or read) file, if "r" only read created file.

  bufferSize - set buffer size for I/O. It is best to use buffer sizes that are multiples of 1024 bytes.

• HFileXML

  public HFileXML(String file,
                  String option)

  Open a XML file to write or read objects to/from a serialized file in sequential order. If "w" option is set, the old file will be removed. The default buffer size is set to 12k.

  Parameters:

  file - File name

  option - Option to create the file . If "w" - write a file (or read) file, if "r" only read created file.

• HFileXML

  public HFileXML(String file)

  Open a XML file to write or read objects to/from a serialized file in sequential order. If "w" option is set, the old file will be removed.

  Parameters:

  file - File name for reading

Method Detail

• write

  public boolean write(String key,
                       Object ob)

  Add an object using a key.

  Parameters:

  key - key to access the object.

  ob - object to be inserted.

  Returns:

  false if the key exits.

• getObjectMap

  public Map<String,Object> getObjectMap()

  Return objects stored in the form of a map.

  Returns:

• getBufferSize

  public int getBufferSize()

  Get current buffer size for I/O.

• write

  public boolean write(Object ob)

  Add an object to a XML file

  Parameters:

  ob - Object

  key - key for object

  Returns:

  true if success

• read

  public Object read()

  Get object from a file. Returns Null if the end of file reached.

  Returns:

  Object object or Null.

• read

  public Object read(String key)

  Read an object using a key if exits.

  Parameters:

  key -

  Returns:

  returned object.

• close

  public boolean close()

  Close the file

  Returns:

• getEntries

  public int getEntries()

  Get number of processed entries

  Returns:

  No of entries

• doc

  public void doc()

  Show online documentation.