tcl.lang.channel
Class SeekableChannel

java.lang.Object
  tcl.lang.channel.Channel
      tcl.lang.channel.SeekableChannel

Direct Known Subclasses:

FileChannel

public abstract class SeekableChannel
extends Channel

Subclass of Channel that supports seeking

Author:

Dan Bodoh

Field Summary

Fields inherited from class tcl.lang.channel.Channel

blocking, buffering, bufferSize, encoding, eofInputFilter, eofOutputFilter, eolInputFilter, eolOutputFilter, finalInputStream, finalReader, firstOutputStream, firstWriter, inputBuffer, inputEofChar, inputTranslation, markableInputStream, mode, nonBlockingOutputStream, outputBuffer, outputEofChar, outputTranslation, rawInputStream, rawOutputStream, READ_OWNERSHIP, refCount, unicodeDecoder, unicodeEncoder, WRITE_OWNERSHIP

Constructor Summary

SeekableChannel()

Method Summary

void	seek(Interp interp, long offset, int mode) Move the current file pointer.
long	tell()

Methods inherited from class tcl.lang.channel.Channel

checkRead, checkWrite, close, eof, flush, getBlocking, getBuffering, getBufferSize, getChanName, getEncoding, getInputEofChar, getInputStream, getInputTranslation, getOutputEofChar, getOutputStream, getOutputTranslation, initInput, initOutput, isBlocked, isClosed, isReadOnly, isReadWrite, isWriteOnly, read, setBlocking, setBuffering, setBufferSize, setEncoding, setInputEofChar, setInputTranslation, setOutputEofChar, setOutputTranslation, setOwnership, setOwnership, waitForOwnership, write, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SeekableChannel

public SeekableChannel()

Method Detail

seek

public void seek(Interp interp,
                 long offset,
                 int mode)
          throws IOException,
                 TclException

Move the current file pointer.

Overrides:

seek in class Channel

Parameters:

interp - currrent interpreter.

offset - The number of bytes to move the file pointer.

mode - where to begin incrementing the file pointer; beginning, current, end.

Throws:

TclException - if channel does not support seek

IOException

tell

public long tell()
          throws IOException

Overrides:

tell in class Channel

Returns:

the current file position.

Throws:

IOException