net.sourceforge.jtds.jdbc
Class BlobImpl
java.lang.Object
|
+--net.sourceforge.jtds.jdbc.BlobImpl
- All Implemented Interfaces:
- java.sql.Blob
- public class BlobImpl
- extends java.lang.Object
- implements java.sql.Blob
An in-memory, disk or database representation of binary data.
- Version:
- $Id: BlobImpl.java,v 1.28 2005/03/29 15:48:42 alin_sinpalean Exp $
- Author:
- Brian Heineman, Mike Hutchinson
Constructor Summary |
(package private) |
BlobImpl(java.lang.Object callerReference)
Constructs a new Blob instance. |
(package private) |
BlobImpl(java.lang.Object callerReference,
byte[] blob)
Constructs a new Blob instance. |
(package private) |
BlobImpl(java.lang.Object callerReference,
ResponseStream in)
Constructs a new Blob instance. |
Method Summary |
protected void |
finalize()
|
java.io.InputStream |
getBinaryStream()
Returns an InputStream for the BLOB data. |
byte[] |
getBytes(long pos,
int length)
|
long |
length()
Returns the length of the value. |
long |
position(java.sql.Blob pattern,
long start)
|
long |
position(byte[] pattern,
long start)
|
java.io.OutputStream |
setBinaryStream(long pos)
|
int |
setBytes(long pos,
byte[] bytes)
|
int |
setBytes(long pos,
byte[] bytes,
int offset,
int len)
|
private void |
skip(java.io.InputStream inputStream,
long skip)
|
void |
truncate(long len)
Truncates the value to the length specified. |
Methods inherited from class java.lang.Object |
, clone, equals, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait |
EMPTY_BLOB
private static final byte[] EMPTY_BLOB
_connection
private ConnectionJDBC2 _connection
_blob
private byte[] _blob
_blobFile
private java.io.File _blobFile
_jtdsInputStream
private JtdsInputStream _jtdsInputStream
BlobImpl
BlobImpl(java.lang.Object callerReference)
- Constructs a new Blob instance.
- Parameters:
callerReference
- an object reference to the caller of this method;
must be a Connection
, Statement
or
ResultSet
BlobImpl
BlobImpl(java.lang.Object callerReference,
byte[] blob)
- Constructs a new Blob instance.
- Parameters:
callerReference
- an object reference to the caller of this method;
must be a Connection
, Statement
or
ResultSet
blob
- the blob object to encapsulate
BlobImpl
BlobImpl(java.lang.Object callerReference,
ResponseStream in)
throws java.io.IOException
- Constructs a new Blob instance.
- Parameters:
callerReference
- an object reference to the caller of this method;
must be a Connection
, Statement
or
ResultSet
in
- the blob object to encapsulate
getBinaryStream
public java.io.InputStream getBinaryStream()
throws java.sql.SQLException
- Returns an InputStream for the BLOB data.
- Specified by:
getBinaryStream
in interface java.sql.Blob
getBytes
public byte[] getBytes(long pos,
int length)
throws java.sql.SQLException
- Specified by:
getBytes
in interface java.sql.Blob
length
public long length()
throws java.sql.SQLException
- Returns the length of the value.
- Specified by:
length
in interface java.sql.Blob
position
public long position(byte[] pattern,
long start)
throws java.sql.SQLException
- Specified by:
position
in interface java.sql.Blob
position
public long position(java.sql.Blob pattern,
long start)
throws java.sql.SQLException
- Specified by:
position
in interface java.sql.Blob
setBinaryStream
public java.io.OutputStream setBinaryStream(long pos)
throws java.sql.SQLException
setBytes
public int setBytes(long pos,
byte[] bytes)
throws java.sql.SQLException
setBytes
public int setBytes(long pos,
byte[] bytes,
int offset,
int len)
throws java.sql.SQLException
truncate
public void truncate(long len)
throws java.sql.SQLException
- Truncates the value to the length specified.
- Parameters:
len
- the length to truncate the value to
skip
private void skip(java.io.InputStream inputStream,
long skip)
throws java.sql.SQLException
finalize
protected void finalize()
- Overrides:
finalize
in class java.lang.Object
Generated on April 15 2005