org.apache.labs.bananadb.store.data.bananatrie
Class ValuesPartition

java.lang.Object
  org.apache.labs.bananadb.store.data.FileHandler<ValuesPartition.Header,ValuesPartition.Posting>
      org.apache.labs.bananadb.store.data.bananatrie.ValuesPartition

public class ValuesPartition
extends FileHandler<ValuesPartition.Header,ValuesPartition.Posting>

Values postings partition file.

This file is NOT affected by rehashing.

Since:

2009-mar-16 14:00:13

Author:

kalle

Nested Class Summary

static class	ValuesPartition.Header
static class	ValuesPartition.Posting

Field Summary

static int

HEADER_BYTE_SIZE

Constructor Summary

ValuesPartition(java.io.File directory, int partitionId, java.lang.String access, LockFactory lockFactory)

Method Summary

int	getHeaderByteSize()
int	getPartitionId()
void	markPostingAsDeleted(int startOffset, java.io.RandomAccessFile RAF, long revision)
void	readHeader(ValuesPartition.Header header, java.io.RandomAccessFile RAF)
void	readPosting(ValuesPartition.Posting posting, java.io.RandomAccessFile RAF)
void	writeHeader(ValuesPartition.Header header, java.io.RandomAccessFile RAF)
void	writePosting(ValuesPartition.Posting posting, java.io.RandomAccessFile RAF)

Methods inherited from class org.apache.labs.bananadb.store.data.FileHandler

close, exists, format, format, getFile, getLock, getRAF, markPostingAsDeleted, open, readHeader, readHeader, readHeader, readPosting, readPosting, writeHeader, writeHeader, writeHeader, writePosting, writePosting, writePosting

Methods inherited from class java.lang.Object

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

Field Detail

HEADER_BYTE_SIZE

public static final int HEADER_BYTE_SIZE

See Also:

Constant Field Values

Constructor Detail

ValuesPartition

public ValuesPartition(java.io.File directory,
                       int partitionId,
                       java.lang.String access,
                       LockFactory lockFactory)
                throws java.io.IOException

Throws:

java.io.IOException

Method Detail

getHeaderByteSize

public int getHeaderByteSize()

Specified by:

getHeaderByteSize in class FileHandler<ValuesPartition.Header,ValuesPartition.Posting>

getPartitionId

public int getPartitionId()

readHeader

public void readHeader(ValuesPartition.Header header,
                       java.io.RandomAccessFile RAF)
                throws java.io.IOException

Specified by:

readHeader in class FileHandler<ValuesPartition.Header,ValuesPartition.Posting>

Throws:

java.io.IOException

writeHeader

public void writeHeader(ValuesPartition.Header header,
                        java.io.RandomAccessFile RAF)
                 throws java.io.IOException

Specified by:

writeHeader in class FileHandler<ValuesPartition.Header,ValuesPartition.Posting>

Throws:

java.io.IOException

readPosting

public void readPosting(ValuesPartition.Posting posting,
                        java.io.RandomAccessFile RAF)
                 throws java.io.IOException

Specified by:

readPosting in class FileHandler<ValuesPartition.Header,ValuesPartition.Posting>

Throws:

java.io.IOException

writePosting

public void writePosting(ValuesPartition.Posting posting,
                         java.io.RandomAccessFile RAF)
                  throws java.io.IOException

Specified by:

writePosting in class FileHandler<ValuesPartition.Header,ValuesPartition.Posting>

Throws:

java.io.IOException

markPostingAsDeleted

public void markPostingAsDeleted(int startOffset,
                                 java.io.RandomAccessFile RAF,
                                 long revision)
                          throws java.io.IOException

Specified by:

markPostingAsDeleted in class FileHandler<ValuesPartition.Header,ValuesPartition.Posting>

Throws:

java.io.IOException