How do I flush a 'RandomAccessFile' (java)?

Question

I\'m using RandomAccessFile in java:

file = new RandomAccessFile(filename, \"rw\");
...
file.writeBytes(...);

How can I ensure that this data i

Answer 1

here's what i do in my app:

rf.close();
rf = new RandomAccessFile("mydata", "rw");

this is give 3-4times gain in performance compared to getFd().sync() and 5-7 times compared to "rws' mode

deoes exactly what the original question proposed: passes on unsaved data to the OS and out of JVM. Doesn't physically write to disk, and therefore introduces no annoying delays