Module org.postgresql.pljava.internal

Package org.postgresql.pljava.jdbc

Class BlobValue

java.lang.Object

java.io.InputStream

org.postgresql.pljava.jdbc.BlobValue

All Implemented Interfaces:

Closeable, AutoCloseable, Blob

public class BlobValue
extends InputStream
implements Blob

Implementation of Blob for the SPI connection.

Author:

Thomas Hallgren

Constructor Summary

Constructors

Constructor	Description
BlobValue(byte[] bytes)
BlobValue(InputStream stream, long nBytes)

Method Summary

Modifier and Type	Method	Description
int	available()
void	free()
InputStream	getBinaryStream()
InputStream	getBinaryStream(long pos, long length)
byte[]	getBytes(long pos, int length)
void	getContents(ByteBuffer buf)	Called from within...
static int	getStreamLength(InputStream value)
long	length()
void	mark(int readLimit)
boolean	markSupported()
long	position(byte[] pattern, long start)	Not supported.
long	position(Blob pattern, long start)	Not supported.
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
OutputStream	setBinaryStream(long pos)	In this method is not supported by BlobValue
int	setBytes(long pos, byte[] bytes)	In this method is not supported by BlobValue
int	setBytes(long pos, byte[] bytes, int offset, int len)	In this method is not supported by BlobValue
long	skip(long nBytes)
void	truncate(long len)	In this method is not supported by BlobValue

Methods inherited from class java.io.InputStream

close, nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Details

BlobValue

public BlobValue(byte[] bytes)

BlobValue

public BlobValue(InputStream stream,
 long nBytes)

Method Details

getStreamLength

public static int getStreamLength(InputStream value)
                           throws SQLException

Throws:

SQLException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

getBinaryStream

public InputStream getBinaryStream()

Specified by:

getBinaryStream in interface Blob

getBytes

public byte[] getBytes(long pos,
 int length)
                throws SQLException

Specified by:

getBytes in interface Blob

Throws:

SQLException

getContents

public void getContents(ByteBuffer buf)
                 throws IOException

Called from within...

Parameters:

buf - a buffer that reflects the internally allocated bytea buffer. This size of this buffer will be exactly the size returned by a call to length().

Throws:

IOException

length

public long length()

Specified by:

length in interface Blob

mark

public void mark(int readLimit)

Overrides:

mark in class InputStream

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

position

public long position(Blob pattern,
 long start)

Not supported.

Specified by:

position in interface Blob

position

public long position(byte[] pattern,
 long start)

Not supported.

Specified by:

position in interface Blob

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

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

Overrides:

read in class InputStream

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

setBinaryStream

public OutputStream setBinaryStream(long pos)

In this method is not supported by BlobValue

Specified by:

setBinaryStream in interface Blob

setBytes

public int setBytes(long pos,
 byte[] bytes)

In this method is not supported by BlobValue

Specified by:

setBytes in interface Blob

setBytes

public int setBytes(long pos,
 byte[] bytes,
 int offset,
 int len)

In this method is not supported by BlobValue

Specified by:

setBytes in interface Blob

skip

public long skip(long nBytes)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

truncate

public void truncate(long len)

In this method is not supported by BlobValue

Specified by:

truncate in interface Blob

getBinaryStream

public InputStream getBinaryStream(long pos,
 long length)
                            throws SQLException

Specified by:

getBinaryStream in interface Blob

Throws:

SQLException

free

public void free()
          throws SQLException

Specified by:

free in interface Blob

Throws:

SQLException