java.util.zip: public class: CheckedOutputStream

java.util.zip
public class: CheckedOutputStream [javadoc | source]

java.lang.Object
   java.io.OutputStream
      java.io.FilterOutputStream
         java.util.zip.CheckedOutputStream

All Implemented Interfaces:
Flushable, Closeable

An output stream that also maintains a checksum of the data being written. The checksum can then be used to verify the integrity of the output data.

Also see:

Checksum

author: David - Connelly

Fields inherited from java.io.FilterOutputStream:
out

Constructor:

Constructor:
public CheckedOutputStream(OutputStream out, Checksum cksum) { super(out); this.cksum = cksum; } Creates an output stream with the specified Checksum. Parameters: `out` - the output stream `cksum` - the checksum

 public CheckedOutputStream(OutputStream out,
    Checksum cksum) {
        super(out);
        this.cksum = cksum;
}

Creates an output stream with the specified Checksum.

Parameters:

out - the output stream

cksum - the checksum

Method from java.util.zip.CheckedOutputStream Summary:
getChecksum, write, write

Methods from java.io.FilterOutputStream:
close, flush, write, write, write

Methods from java.io.OutputStream:
close, flush, write, write, write

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from java.util.zip.CheckedOutputStream Detail:
public Checksum getChecksum() { return cksum; } Returns the Checksum for this output stream.
public void write(int b) throws IOException { out.write(b); cksum.update(b); } Writes a byte. Will block until the byte is actually written.
public void write(byte[] b, int off, int len) throws IOException { out.write(b, off, len); cksum.update(b, off, len); } Writes an array of bytes. Will block until the bytes are actually written.

Method from java.util.zip.CheckedOutputStream Detail:

 public Checksum getChecksum() {
        return cksum;
}

Returns the Checksum for this output stream.

 public  void write(int b) throws IOException {
        out.write(b);
        cksum.update(b);
}

Writes a byte. Will block until the byte is actually written.

 public  void write(byte[] b,
    int off,
    int len) throws IOException {
        out.write(b, off, len);
        cksum.update(b, off, len);
}

Writes an array of bytes. Will block until the bytes are actually written.