Create a read-only memory-mapped file - Java File Path IO

Java examples for File Path IO:MappedByteBuffer

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Description

Create a read-only memory-mapped file

Demo Code

import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

public class Main {

  public void main(String[] argv) {
    try {//from w w  w.  ja va  2s  .  c o  m
      File file = new File("filename");

      // Create a read-only memory-mapped file
      FileChannel roChannel = new RandomAccessFile(file, "r").getChannel();
      ByteBuffer roBuf = roChannel.map(FileChannel.MapMode.READ_ONLY, 0,
          (int) roChannel.size());

    } catch (IOException e) {
    }
  }
}

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