public SerializableBlob(Blob blob) 
{
		this.blob = blob;
}

 public InputStream getBinaryStream() throws SQLException 
{
		return getWrappedBlob().getBinaryStream();
}

 public byte[] getBytes(long pos,
    int length) throws SQLException 
{
		return getWrappedBlob().getBytes(pos, length);
}

 public Blob getWrappedBlob() 
{
		if ( blob==null ) {
			throw new IllegalStateException("Blobs may not be accessed after serialization");
		}
		else {
			return blob;
		}
}

 public long length() throws SQLException 
{
		return getWrappedBlob().length();
}

 public long position(byte[] pattern,
    long start) throws SQLException 
{
		return getWrappedBlob().position(pattern, start);
}

 public long position(Blob pattern,
    long start) throws SQLException 
{
		return getWrappedBlob().position(pattern, start);
}

 public OutputStream setBinaryStream(long pos) throws SQLException 
{
		return getWrappedBlob().setBinaryStream(pos);
}

 public int setBytes(long pos,
    byte[] bytes) throws SQLException 
{
		return getWrappedBlob().setBytes(pos, bytes);
}

 public int setBytes(long pos,
    byte[] bytes,
    int offset,
    int len) throws SQLException 
{
		return getWrappedBlob().setBytes(pos, bytes, offset, len);
}

 public  void truncate(long len) throws SQLException 
{
		getWrappedBlob().truncate(len);
}