org.brandao.brcache.collections.fileswapper

Class DataBlockEntityFile

java.lang.Object

org.brandao.brcache.collections.fileswapper.AbstractEntityFile<DataBlock>

org.brandao.brcache.collections.fileswapper.DataBlockEntityFile

All Implemented Interfaces:

EntityFile<DataBlock>

public class DataBlockEntityFile
extends AbstractEntityFile<DataBlock>

Field Summary

Fields

Modifier and Type	Field and Description
static byte	END_HEADER
static byte	EOF_FILE
static byte	LEN_HEADER
static byte	REMOVED_STATUS
static byte	USED_STATUS

Fields inherited from class org.brandao.brcache.collections.fileswapper.AbstractEntityFile

batchLength, file, fileAccess, firstRecord, offset, recordLength

Constructor Summary

Constructors

Constructor and Description
DataBlockEntityFile(File file, int blockSize)

Method Summary

Methods

Modifier and Type	Method and Description
int	getBlockSize()
ReadWriteLock	getLock()
protected DataBlock	read(DataInputStream stream)
protected void	readMetaData(DataInputStream stream)
protected void	write(DataOutputStream stream, DataBlock entity)
protected void	writeEOF(DataOutputStream stream)
protected void	writeHeader()
protected void	writeMetaData(DataOutputStream stream)

Methods inherited from class org.brandao.brcache.collections.fileswapper.AbstractEntityFile

batchWrite, close, createNewFile, delete, exists, flush, getAbsoluteFile, getAbsolutePath, getBatchLength, getName, getOffset, length, open, read, readHeader, seek, setBatchLength, setLength, write

Methods inherited from class java.lang.Object

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

Field Detail

LEN_HEADER

public static final byte LEN_HEADER

See Also:

Constant Field Values

END_HEADER

public static final byte END_HEADER

See Also:

Constant Field Values

EOF_FILE

public static final byte EOF_FILE

See Also:

Constant Field Values

REMOVED_STATUS

public static final byte REMOVED_STATUS

See Also:

Constant Field Values

USED_STATUS

public static final byte USED_STATUS

See Also:

Constant Field Values

Constructor Detail

DataBlockEntityFile

public DataBlockEntityFile(File file,
                   int blockSize)

Method Detail

writeEOF

protected void writeEOF(DataOutputStream stream)
                 throws IOException

Specified by:

writeEOF in class AbstractEntityFile<DataBlock>

Throws:

IOException

write

protected void write(DataOutputStream stream,
         DataBlock entity)
              throws IOException

Specified by:

write in class AbstractEntityFile<DataBlock>

Throws:

IOException

read

protected DataBlock read(DataInputStream stream)
                  throws IOException

Specified by:

read in class AbstractEntityFile<DataBlock>

Throws:

IOException

writeMetaData

protected void writeMetaData(DataOutputStream stream)
                      throws IOException

Specified by:

writeMetaData in class AbstractEntityFile<DataBlock>

Throws:

IOException

writeHeader

protected void writeHeader()
                    throws IOException

Overrides:

writeHeader in class AbstractEntityFile<DataBlock>

Throws:

IOException

readMetaData

protected void readMetaData(DataInputStream stream)
                     throws IOException

Specified by:

readMetaData in class AbstractEntityFile<DataBlock>

Throws:

IOException

getLock

public ReadWriteLock getLock()

Specified by:

getLock in interface EntityFile<DataBlock>

Overrides:

getLock in class AbstractEntityFile<DataBlock>

getBlockSize

public int getBlockSize()