ostore.util
Class FromBytesInputBuffer

java.lang.Object
  |
  +--ostore.util.InputBufferImpl
        |
        +--ostore.util.FromBytesInputBuffer

All Implemented Interfaces:

Cloneable, InputBuffer

public class FromBytesInputBuffer

extends InputBufferImpl

For help in porting. Use like this:

     public Foo (byte [] data, int [] offset) throws QSException {
         this (new FromBytesInputBuffer (data, offset));
     }
 

Version:

$Id: FromBytesInputBuffer.java,v 1.2 2002/06/29 05:55:35 hweather Exp $

Author:

Sean C. Rhea

Constructor Summary

FromBytesInputBuffer(byte[] data, int[] offset)

Method Summary

Object	clone() Buffers must support clone such that the read pointer on a cloned buffer is independent of the original.
void	convertToBytes(byte[][] out_buffer, int[][] out_offset)
byte	nextByte() Read the next byte out of the buffer.
void	nextBytes(byte[] out, int off, int length) Read the next length bytes out the of the buffer, and place them in the array output, starting at index offset.
void	nextBytes(OutputBuffer output) Write all of the remaining bytes in this input buffer into the given output buffer.
void	skipBytes(int count)
InputBuffer	subBuffer(int length) Create a new input buffer from the read point at this one, containing the next length bytes.

Methods inherited from class ostore.util.InputBufferImpl

nextBigInteger, nextBigInteger, nextBoolean, nextBoolean, nextDouble, nextDouble, nextInt, nextInt, nextLong, nextLong, nextObject, nextObject, nextShort, nextShort, nextString, nextString

Methods inherited from class java.lang.Object

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

Constructor Detail

FromBytesInputBuffer

public FromBytesInputBuffer(byte[] data,
                            int[] offset)

Method Detail

nextByte

public byte nextByte()

Description copied from interface: InputBuffer

Read the next byte out of the buffer.

nextBytes

public void nextBytes(byte[] out,
                      int off,
                      int length)

Description copied from interface: InputBuffer

Read the next length bytes out the of the buffer, and place them in the array output, starting at index offset.

Parameters:

out - the array into which the bytes are written

off - the index in output at which we start writing bytes

length - the number of bytes to read

nextBytes

public void nextBytes(OutputBuffer output)

Description copied from interface: InputBuffer

Write all of the remaining bytes in this input buffer into the given output buffer. We need something like this so that (for example) the payload of an RouteMsg doesn't have to be deserialized on an intermediate node in its path. I'm not entirely happy with the idea, though, so please don't use it for now without talking to me first about what you're using it for.

Parameters:

output - the output buffer into which the bytes are written

convertToBytes

public void convertToBytes(byte[][] out_buffer,
                           int[][] out_offset)

skipBytes

public void skipBytes(int count)

subBuffer

public InputBuffer subBuffer(int length)

Description copied from interface: InputBuffer

Create a new input buffer from the read point at this one, containing the next length bytes. Subject to change in the future.

clone

public Object clone()
             throws CloneNotSupportedException

Description copied from interface: InputBuffer

Buffers must support clone such that the read pointer on a cloned buffer is independent of the original. This functionality is used in Tapestry and will be used in SignedQS as well, I think. It relates to the need to deserialize a buffer twice. Whether or not we keep using it is subject to change.

Specified by:

clone in interface InputBuffer

Overrides:

clone in class InputBufferImpl

CloneNotSupportedException