com.healthmarketscience.jackcess
Interface CodecHandler

All Known Implementing Classes:

DefaultCodecProvider.DummyHandler, DefaultCodecProvider.UnsupportedHandler

public interface CodecHandler

Interface for a handler which can encode/decode a specific access page encoding.

Method Summary

void	decodePage(java.nio.ByteBuffer page, int pageNumber) Decodes the given page buffer inline.
java.nio.ByteBuffer	encodePage(java.nio.ByteBuffer page, int pageNumber, int pageOffset) Encodes the given page buffer into a new page buffer and returns it.

Method Detail

decodePage

void decodePage(java.nio.ByteBuffer page,
                int pageNumber)
                throws java.io.IOException

Decodes the given page buffer inline.

Parameters:

page - the page to be decoded

pageNumber - the page number of the given page

Throws:

java.io.IOException - if an exception occurs during decoding

encodePage

java.nio.ByteBuffer encodePage(java.nio.ByteBuffer page,
                               int pageNumber,
                               int pageOffset)
                               throws java.io.IOException

Encodes the given page buffer into a new page buffer and returns it. The returned page buffer will be used immediately and discarded so that it may be re-used for subsequent page encodings.

Parameters:

page - the page to be encoded, should not be modified

pageNumber - the page number of the given page

pageOffset - offset within the page at which to start writing the page data

Returns:

the properly encoded page buffer for the given page buffer

Throws:

java.io.IOException - if an exception occurs during decoding