| java.lang.Object
 com.healthmarketscience.jackcess.PageChannel
| PageChannel | | public class PageChannel implements Channel,Flushable(Code) | | Reads and writes individual pages in a database file
author:
Tim McCune |
| INVALID_PAGE_NUMBER | | final static int INVALID_PAGE_NUMBER(Code) | | |
| PageChannel | | public PageChannel(FileChannel channel, JetFormat format, boolean autoSync) throws IOException(Code) | |
Parameters:
channel - Channel containing the database
Parameters:
format - Format of the database in the channel |
| PageChannel | | PageChannel(boolean testing)(Code) | | Only used by unit tests
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| createBuffer | | public ByteBuffer createBuffer(int size)(Code) | | A newly-allocated buffer of the given size and LITTLE_ENDIAN byteorder |
| createBuffer | | public ByteBuffer createBuffer(int size, ByteOrder order)(Code) | | A newly-allocated buffer of the given size and byte order |
| createPageBuffer | | public ByteBuffer createPageBuffer()(Code) | | A newly-allocated buffer that can be passed to readPage |
| initialize | | public void initialize(Database database) throws IOException(Code) | | Does second-stage initialization, must be called after construction.
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| isOpen | | public boolean isOpen()(Code) | | |
| narrowBuffer | | public static ByteBuffer narrowBuffer(ByteBuffer buffer, int position, int limit)(Code) | | a duplicate of the current buffer narrowed to the given positionand limit. mark will be set at the current position. |
| readPage | | public void readPage(ByteBuffer buffer, int pageNumber) throws IOException(Code) | |
Parameters:
buffer - Buffer to read the page into
Parameters:
pageNumber - Number of the page to read in (starting at 0) |
| writeNewPage | | public int writeNewPage(ByteBuffer page) throws IOException(Code) | | Write a page to disk as a new page, appending it to the database
Parameters:
page - Page to write Page number at which the page was written |
| writePage | | public void writePage(ByteBuffer page, int pageNumber) throws IOException(Code) | | Write a page to disk
Parameters:
page - Page to write
Parameters:
pageNumber - Page number to write the page to |
| writePage | | public void writePage(ByteBuffer page, int pageNumber, int pageOffset) throws IOException(Code) | | Write a page (or part of a page) to disk
Parameters:
page - Page to write
Parameters:
pageNumber - Page number to write the page to
Parameters:
pageOffset - offset within the page at which to start writing thepage data |
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