java.lang.Object

net.sourceforge.jtds.jdbc.BlobImpl

All Implemented Interfaces:: Blob

public class BlobImpl extends Object implements Blob

An in-memory or disk based representation of binary data.

Version:: $Id: BlobImpl.java,v 1.31.2.3 2009-12-30 08:45:34 ickzon Exp $
Author:: Brian Heineman, Mike Hutchinson

Field Summary

Fields

Modifier and Type

Field

Description

private final BlobBuffer

blobBuffer

The underlying BlobBuffer.

private static final byte[]

EMPTY_BLOB

0 length byte[] as initial value for empty Blobs.
Constructor Summary

Constructors

Constructor

Description

BlobImpl(JtdsConnection connection)

Constructs a new empty Blob instance.

BlobImpl(JtdsConnection connection, byte[] bytes)

Constructs a new Blob instance initialized with data.
Method Summary

Modifier and Type

Method

Description

void

free()

InputStream

getBinaryStream()

InputStream

getBinaryStream(long pos, long length)

byte[]

getBytes(long pos, int length)

long

length()

long

position(byte[] pattern, long start)

long

position(Blob pattern, long start)

OutputStream

setBinaryStream(long pos)

int

setBytes(long pos, byte[] bytes)

int

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

void

truncate(long len)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- EMPTY_BLOB
  
  private static final byte[] EMPTY_BLOB
  
  0 length byte[] as initial value for empty Blobs.
- blobBuffer
  
  private final BlobBuffer blobBuffer
  
  The underlying BlobBuffer.
Constructor Details
- BlobImpl
  
  BlobImpl(JtdsConnection connection)
  
  Constructs a new empty Blob instance.
  
  Parameters:
  
  connection - a reference to the parent connection object
- BlobImpl
  
  BlobImpl(JtdsConnection connection, byte[] bytes)
  
  Constructs a new Blob instance initialized with data.
  
  Parameters:
  
  connection - a reference to the parent connection object
  
  bytes - the blob object to encapsulate
Method Details
- getBinaryStream
  
  public InputStream getBinaryStream() throws SQLException
  
  Specified by:
  
  getBinaryStream in interface Blob
  
  Throws:
  
  SQLException
- getBytes
  
  public byte[] getBytes(long pos, int length) throws SQLException
  
  Specified by:
  
  getBytes in interface Blob
  
  Throws:
  
  SQLException
- length
  
  public long length() throws SQLException
  
  Specified by:
  
  length in interface Blob
  
  Throws:
  
  SQLException
- position
  
  public long position(byte[] pattern, long start) throws SQLException
  
  Specified by:
  
  position in interface Blob
  
  Throws:
  
  SQLException
- position
  
  public long position(Blob pattern, long start) throws SQLException
  
  Specified by:
  
  position in interface Blob
  
  Throws:
  
  SQLException
- setBinaryStream
  
  public OutputStream setBinaryStream(long pos) throws SQLException
  
  Specified by:
  
  setBinaryStream in interface Blob
  
  Throws:
  
  SQLException
- setBytes
  
  public int setBytes(long pos, byte[] bytes) throws SQLException
  
  Specified by:
  
  setBytes in interface Blob
  
  Throws:
  
  SQLException
- setBytes
  
  public int setBytes(long pos, byte[] bytes, int offset, int len) throws SQLException
  
  Specified by:
  
  setBytes in interface Blob
  
  Throws:
  
  SQLException
- truncate
  
  public void truncate(long len) throws SQLException
  
  Specified by:
  
  truncate in interface Blob
  
  Throws:
  
  SQLException
- free
  
  public void free() throws SQLException
  
  Specified by:
  
  free in interface Blob
  
  Throws:
  
  SQLException
- getBinaryStream
  
  public InputStream getBinaryStream(long pos, long length) throws SQLException
  
  Specified by:
  
  getBinaryStream in interface Blob
  
  Throws:
  
  SQLException

Class BlobImpl

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Details

EMPTY_BLOB

blobBuffer

Constructor Details

BlobImpl

BlobImpl

Method Details

getBinaryStream

getBytes

length

position

position

setBinaryStream

setBytes

setBytes

truncate

free

getBinaryStream