org.terrier.compression.integer

Class ByteInputStream

java.lang.Object

org.terrier.compression.integer.ByteInputStream

All Implemented Interfaces:

ByteIn

Direct Known Subclasses:

ByteFileBuffered.BufferedFileByteIn

public class ByteInputStream
extends Object
implements ByteIn

Byte wise counterpart of BitInputStream

Since:

4.0

Author:

Matteo Catena

Field Summary

Fields

Modifier and Type	Field and Description
protected long	byteOffset
protected DataInput	di

Fields inherited from interface org.terrier.compression.integer.ByteIn

USUAL_EXTENSION

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ByteInputStream()
	ByteInputStream(DataInput di)
	ByteInputStream(DataInput di, long offset)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
long	getByteOffset() Returns the byte offset of the stream.
int	getVSize(long x)
int	readFully(byte[] arr, int off, int len)
int	readVInt()
long	readVLong()
void	skipBytes(long l)

Methods inherited from class java.lang.Object

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

Field Detail

di

protected DataInput di

byteOffset

protected long byteOffset

Constructor Detail

ByteInputStream

protected ByteInputStream()

ByteInputStream

public ByteInputStream(DataInput di)
                throws IOException

Throws:

IOException

ByteInputStream

public ByteInputStream(DataInput di,
               long offset)
                throws IOException

Throws:

IOException

Method Detail

getByteOffset

public final long getByteOffset()

Description copied from interface: ByteIn

Returns the byte offset of the stream. It corresponds to the position of the byte in which the next bit will be written. Use only when writing

Specified by:

getByteOffset in interface ByteIn

Returns:

the byte offset in the stream.

close

public void close()
           throws IOException

Specified by:

close in interface ByteIn

Throws:

IOException

skipBytes

public final void skipBytes(long l)
                     throws IOException

Specified by:

skipBytes in interface ByteIn

Throws:

IOException

readVInt

public final int readVInt()
                   throws IOException

Specified by:

readVInt in interface ByteIn

Throws:

IOException

readVLong

public final long readVLong()
                     throws IOException

Specified by:

readVLong in interface ByteIn

Throws:

IOException

readFully

public final int readFully(byte[] arr,
            int off,
            int len)
                    throws IOException

Specified by:

readFully in interface ByteIn

Throws:

IOException

getVSize

public int getVSize(long x)
             throws IOException

Specified by:

getVSize in interface ByteIn

Throws:

IOException