SQLite
Class BlobR

java.lang.Object
  java.io.InputStream
      SQLite.BlobR

class BlobR

extends InputStream

Internal class implementing java.io.InputStream on SQLite 3.4.0 incremental blob I/O interface.

Field Summary

private Blob	blob Blob instance
private int	pos Read position, file pointer.

Fields inherited from class java.io.InputStream

Constructor Summary

(package private)

BlobR(Blob blob) Contruct InputStream from blob instance.

Method Summary

int	available() Return number of available bytes for reading.
void	close() Close this blob InputStream.
void	mark(int limit) Mark method; dummy to satisfy InputStream class.
boolean	markSupported() Mark support; not for this class.
int	read() Read single byte from blob.
int	read(byte[] b) Read byte array from blob.
int	read(byte[] b, int off, int len) Read slice of byte array from blob.
void	reset() Reset method; dummy to satisfy InputStream class.
long	skip(long n) Skip over blob data.

Methods inherited from class java.lang.Object

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

Field Detail

blob

private Blob blob

Blob instance

pos

private int pos

Read position, file pointer.

Constructor Detail

BlobR

BlobR(Blob blob)

Contruct InputStream from blob instance.

Parameters:

blob - blob to make input stream from

Method Detail

available

public int available()
              throws IOException

Return number of available bytes for reading.

Returns:

available input bytes

Throws:

IOException - on I/O error

close

public void close()
           throws IOException

Close this blob InputStream.

Throws:

IOException - on I/O error

mark

public void mark(int limit)

Mark method; dummy to satisfy InputStream class.

markSupported

public boolean markSupported()

Mark support; not for this class.

Returns:

always false

read

public int read()
         throws IOException

Read single byte from blob.

Returns:

byte read

Throws:

IOException - on I/O error

read

public int read(byte[] b)
         throws IOException

Read byte array from blob.

Parameters:

b - byte array to be filled

Returns:

number of bytes read

Throws:

IOException - on I/O error

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Read slice of byte array from blob.

Parameters:

b - byte array to be filled

off - offset into byte array

len - length to be read

Returns:

number of bytes read

Throws:

IOException - on I/O error

reset

public void reset()
           throws IOException

Reset method; dummy to satisfy InputStream class.

Throws:

IOException - on I/O error

skip

public long skip(long n)
          throws IOException

Skip over blob data.

Parameters:

n - number of bytes to skip

Throws:

IOException - on I/O error