SQLite

Class BlobR

java.lang.Object

java.io.InputStream

SQLite.BlobR

All Implemented Interfaces:

Closeable, AutoCloseable

 class BlobR
extends InputStream

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

Field Summary

Fields

Modifier and Type	Field and Description
private Blob	blob Blob instance
private int	pos Read position, file pointer.

Constructor Summary

Constructors

Constructor and Description
BlobR(Blob blob) Contruct InputStream from blob instance.

Method Summary

Methods

Modifier and Type	Method and Description
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.

Method Detail

available

public int available()
              throws IOException

Return number of available bytes for reading.

Overrides:

available in class InputStream

Returns:

available input bytes

Throws:

IOException

close

public void close()
           throws IOException

Close this blob InputStream.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException

mark

public void mark(int limit)

Mark method; dummy to satisfy InputStream class.

Overrides:

mark in class InputStream

markSupported

public boolean markSupported()

Mark support; not for this class.

Overrides:

markSupported in class InputStream

Returns:

always false

read

public int read()
         throws IOException

Read single byte from blob.

Specified by:

read in class InputStream

Returns:

byte read

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Read byte array from blob.

Overrides:

read in class InputStream

Parameters:

b - byte array to be filled

Returns:

number of bytes read

Throws:

IOException

read

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

Read slice of byte array from blob.

Overrides:

read in class InputStream

Parameters:

b - byte array to be filled

off - offset into byte array

len - length to be read

Returns:

number of bytes read

Throws:

IOException

reset

public void reset()
           throws IOException

Reset method; dummy to satisfy InputStream class.

Overrides:

reset in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Skip over blob data.

Overrides:

skip in class InputStream

Throws:

IOException