org.extex.util.file.random
Interface RandomAccessR

All Superinterfaces:

java.io.DataInput

All Known Implementing Classes:

RandomAccessInputArray, RandomAccessInputFile, RandomAccessInputFileDebug, RandomAccessInputStream

public interface RandomAccessR
extends java.io.DataInput

Interface for random access (read only)

Version:

$Revision: 5921 $

Author:

Michael Niedermair

Field Summary

static int	KILL32 kill the highest 8 bit (by a 32 bit int)
static int	X24 get bit 24

Method Summary

void	close()
byte[]	getData() Returns the data.
long	getPointer() Returns the pointer in the buffer.
boolean	isEOF() Check, if EOF is reached.
long	length()
int	readByteAsInt() Reads a byte of data from this file.
int	readInt16() Reads a int with 16 bit (2x8).
int	readInt24() Reads a int with 24 bit (3x8).
int	readInt8() Reads a int with 8 bit (1x8).
int	readSignInt24() Reads a sign int with 24 bit (3x8).
void	seek(long arg0)

Methods inherited from interface java.io.DataInput

readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, skipBytes

Field Detail

KILL32

static final int KILL32

kill the highest 8 bit (by a 32 bit int)

See Also:

Constant Field Values

X24

static final int X24

get bit 24

See Also:

Constant Field Values

Method Detail

close

void close()
           throws java.io.IOException

Throws:

java.io.IOException

See Also:

RandomAccessFile.close()

getData

byte[] getData()
               throws java.io.IOException

Returns the data.

Returns:

the data.

Throws:

java.io.IOException

getPointer

long getPointer()
                throws java.io.IOException

Returns the pointer in the buffer.

Returns:

Returns the pointer in the buffer

Throws:

java.io.IOException - if an IO error occurs

isEOF

boolean isEOF()
              throws java.io.IOException

Check, if EOF is reached.

Returns:

Returns true, if EOF is reached.

Throws:

java.io.IOException - if an IO error occurs.

length

long length()
            throws java.io.IOException

Throws:

java.io.IOException

See Also:

RandomAccessFile.length()

readByteAsInt

int readByteAsInt()
                  throws java.io.IOException

Reads a byte of data from this file. The byte is returned as an integer in the range 0 to 255 (0x00-0x0ff).

Returns:

the next byte of data.

Throws:

java.io.IOException - if an IO error occurs.

readInt16

int readInt16()
              throws java.io.IOException

Reads a int with 16 bit (2x8).

Returns:

Returns a int value.

Throws:

java.io.IOException - if an IO error occurs.

readInt24

int readInt24()
              throws java.io.IOException

Reads a int with 24 bit (3x8).

Returns:

Returns a int value.

Throws:

java.io.IOException - if an IO error occurs.

readInt8

int readInt8()
             throws java.io.IOException

Reads a int with 8 bit (1x8).

Returns:

Returns a int value.

Throws:

java.io.IOException - if an IO error occurs.

readSignInt24

int readSignInt24()
                  throws java.io.IOException

Reads a sign int with 24 bit (3x8). The sign is calculated with the b-complement.

Returns:

Returns a int value.

Throws:

java.io.IOException - if an IO error occurs.

seek

void seek(long arg0)
          throws java.io.IOException

Throws:

java.io.IOException

See Also:

RandomAccessFile.seek(long)