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gnu.java.nio

Class ChannelWriter

Implemented Interfaces:
Appendable, AutoCloseable, Closeable, Flushable
public class ChannelWriter
extends Writer
A Writer implementation that works by wrapping an NIO channel.

Field Summary

Fields inherited from class java.io.Writer

lock

Constructor Summary

ChannelWriter(WritableByteChannel ch, CharsetEncoder enc, int minBufferCap)
Create a new instance, given the output byte channel, the encoder to use, and the minimum buffer capacity.

Method Summary

void
close()
This method closes the stream.
void
flush()
This method forces any data that may have been buffered to be written to the underlying output device.
void
write(char[] buf, int offset, int len)
This method writes len char from the specified array buf starting at index offset into the array.

Methods inherited from class java.io.Writer

append, append, append, close, flush, write, write, 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

ChannelWriter

public ChannelWriter(WritableByteChannel ch,
                     CharsetEncoder enc,
                     int minBufferCap)
Create a new instance, given the output byte channel, the encoder to use, and the minimum buffer capacity.

Method Details

close

public void close()
            throws IOException
This method closes the stream. Any internal or native resources associated with this stream are freed. Any subsequent attempt to access the stream might throw an exception.

This method in this class does nothing.

Specified by:
close in interface Closeable
close in interface AutoCloseable
Overrides:
close in interface Writer
Throws:
IOException - If an error occurs

flush

public void flush()
            throws IOException
This method forces any data that may have been buffered to be written to the underlying output device. Please note that the host environment might perform its own buffering unbeknowst to Java. In that case, a write made (for example, to a disk drive) might be cached in OS buffers instead of actually being written to disk.
Specified by:
flush in interface Flushable
Overrides:
flush in interface Writer
Throws:
IOException - If an error occurs

write

public void write(char[] buf,
                  int offset,
                  int len)
            throws IOException
This method writes len char from the specified array buf starting at index offset into the array.

Subclasses must provide an implementation of this abstract method.

Overrides:
write in interface Writer
Parameters:
buf - The array of char to write from
offset - The index into the array to start writing from
len - The number of char to write
Throws:
IOException - If an error occurs
ChannelWriter.java -- nio / writer bridge Copyright (C) 2006 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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