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java.util.zip

Class CheckedOutputStream

Implemented Interfaces:
Closeable, Flushable
public class CheckedOutputStream
extends FilterOutputStream
OutputStream that computes a checksum of data being written using a supplied Checksum object.
See Also:
Checksum

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

CheckedOutputStream(OutputStream out, Checksum cksum)
Creates a new CheckInputStream on top of the supplied OutputStream using the supplied Checksum.

Method Summary

Checksum
getChecksum()
Returns the Checksum object used.
void
write(byte[] buf, int off, int len)
Writes the byte array to the OutputStream and updates the Checksum.
void
write(int bval)
Writes one byte to the OutputStream and updates the Checksum.

Methods inherited from class java.io.FilterOutputStream

close, flush, write, write, write

Methods inherited from class java.io.OutputStream

close, flush, write, write, write

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CheckedOutputStream

public CheckedOutputStream(OutputStream out,
                           Checksum cksum)
Creates a new CheckInputStream on top of the supplied OutputStream using the supplied Checksum.

Method Details

getChecksum

public Checksum getChecksum()
Returns the Checksum object used. To get the data checksum computed so far call getChecksum.getValue().

write

public void write(byte[] buf,
                  int off,
                  int len)
            throws IOException
Writes the byte array to the OutputStream and updates the Checksum.
Overrides:
write in interface FilterOutputStream

write

public void write(int bval)
            throws IOException
Writes one byte to the OutputStream and updates the Checksum.
Overrides:
write in interface FilterOutputStream
CheckedOutputStream.java - Compute checksum of data being written. Copyright (C) 1999, 2000 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.

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