hugedataaccess

Class ByteBufferDataAccess

java.lang.Object

hugedataaccess.BaseDataAccess

hugedataaccess.ByteBufferDataAccess

All Implemented Interfaces:

DataAccess

Direct Known Subclasses:

MMapDataAccess

public class ByteBufferDataAccess
extends BaseDataAccess

Field Summary

Fields

Modifier and Type	Field and Description
protected ByteBuffer[]	buffers

Fields inherited from class hugedataaccess.BaseDataAccess

currentPosition, DEFAULT_SEGMENT_SIZE, segmentSize, segmentSizeDivisor, segmentSizePower

Constructor Summary

Constructors

Constructor and Description
ByteBufferDataAccess()
ByteBufferDataAccess(int bufferSize)

Method Summary

Modifier and Type	Method and Description
void	close()
void	ensureCapacity(long bytes)
byte	getByte(long bytePos)
long	getCapacity()
char	getChar(long bytePos) Absolute get method for reading a char value.
double	getDouble(long bytePos)
float	getFloat(long bytePos)
int	getInt(long bytePos)
long	getLong(long bytePos)
short	getShort(long bytePos)
void	setByte(long bytePos, byte element)
void	setChar(long bytePos, char element) Absolute put method for writing a char value (optional operation).
void	setDouble(long bytePos, double element)
void	setFloat(long bytePos, float element)
void	setInt(long bytePos, int element)
void	setLong(long bytePos, long element)
void	setShort(long bytePos, short element)

Methods inherited from class hugedataaccess.BaseDataAccess

getByte, getChar, getCurrentPosition, getDouble, getFloat, getInt, getLong, getShort, isEmpty, setByte, setChar, setCurrentPosition, setDouble, setFloat, setInt, setLong, setSegmentSize, setShort

Methods inherited from class java.lang.Object

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

Field Detail

buffers

protected ByteBuffer[] buffers

Constructor Detail

ByteBufferDataAccess

public ByteBufferDataAccess()

ByteBufferDataAccess

public ByteBufferDataAccess(int bufferSize)

Method Detail

ensureCapacity

public void ensureCapacity(long bytes)

getCapacity

public long getCapacity()

getByte

public byte getByte(long bytePos)

setByte

public void setByte(long bytePos,
                    byte element)

getChar

public char getChar(long bytePos)

Description copied from interface: DataAccess

Absolute get method for reading a char value. Reads two bytes at the given index, composing them into a char value according to the current byte order.

Parameters:

bytePos - The index (byte position) from which the bytes will be read

Returns:

The char value at the given index (byte position)

setChar

public void setChar(long bytePos,
                    char element)

Description copied from interface: DataAccess

Absolute put method for writing a char value (optional operation). Writes two bytes containing the given char value, in the current byte order, into this buffer at the given index.

Parameters:

bytePos - The index at which the bytes will be written

element - The char value to be written

getShort

public short getShort(long bytePos)

setShort

public void setShort(long bytePos,
                     short element)

getInt

public int getInt(long bytePos)

setInt

public void setInt(long bytePos,
                   int element)

getLong

public long getLong(long bytePos)

setLong

public void setLong(long bytePos,
                    long element)

getFloat

public float getFloat(long bytePos)

setFloat

public void setFloat(long bytePos,
                     float element)

getDouble

public double getDouble(long bytePos)

setDouble

public void setDouble(long bytePos,
                      double element)

close

public void close()