SQLite

Class BlobR

java.lang.Object

java.io.InputStream

SQLite.BlobR

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

 class BlobR
extends java.io.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 java.io.IOException

Return number of available bytes for reading.

Overrides:

available in class java.io.InputStream

Returns:

available input bytes

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Close this blob InputStream.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

mark

public void mark(int limit)

Mark method; dummy to satisfy InputStream class.

Overrides:

mark in class java.io.InputStream

markSupported

public boolean markSupported()

Mark support; not for this class.

Overrides:

markSupported in class java.io.InputStream

Returns:

always false

read

public int read()
         throws java.io.IOException

Read single byte from blob.

Specified by:

read in class java.io.InputStream

Returns:

byte read

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Read byte array from blob.

Overrides:

read in class java.io.InputStream

Parameters:

b - byte array to be filled

Returns:

number of bytes read

Throws:

java.io.IOException

read

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

Read slice of byte array from blob.

Overrides:

read in class java.io.InputStream

Parameters:

b - byte array to be filled

off - offset into byte array

len - length to be read

Returns:

number of bytes read

Throws:

java.io.IOException

reset

public void reset()
           throws java.io.IOException

Reset method; dummy to satisfy InputStream class.

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Skip over blob data.

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException