Resize images from table

Question

Hello!
I had following problem.
There is a code, which receives images from one table in RDBMS (images are stored in LONG RAW fields),
reduces them and writes in other table. Here the code:
OracleStatement stmt = (OracleStatement)con.createStatement();
OracleResultSet rs = (OracleResultSet)stmt.executeQuery("SELECT image FROM bigimages WHERE IMGID=1");
if (rs.next()) {
InputStream in=rs.getBinaryStream(1);
OutputStream out = new FileOutputStream("C:\\TMP.JPG");
JPEGImageDecoder decoder=JPEGCodec.createJPEGDecoder(in);
JPEGImageEncoder encoder=JPEGCodec.createJPEGEncoder(out);
BufferedImage sourceImg=decoder.decodeAsBufferedImage();
BufferedImage img=scaleToSize(nWidth, nHeight, sourceImg);
encoder.encode(img);
InputStream fStream = new FileInputStream("C:\\TMP.JPG");
try {
OraclePreparedStatement pstmt = (OraclePreparedStatement)con.prepareStatement("INSERT INTO smallimages VALUES (?,1)");
pstmt.setBinaryStream(1,fStream,fStream.available());
boolean result = pstmt.execute();
pstmt.close();
} catch (SQLException ex) {}
in.close();
out.close();
backimageresize = true;
rs.close();
stmt.close();
But for some reasons it is necessary to do without the temporary file.
How it to make?

Answer 1

You mean you want to do that without using a temporary file? If so, then use these two modified lines of code instead:
OutputStream out = new ByteArrayOutputStream();
InputStream fStream = new ByteArrayInputStream(out.toByteArray());