PipedWriter
public
class
PipedWriter
extends Writer
Piped character-output streams.
Summary
Inherited fields |
From class
java.io.Writer
protected
Object |
lock
The object used to synchronize operations on this stream.
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Public constructors |
PipedWriter()
Creates a piped writer that is not yet connected to a
piped reader.
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PipedWriter(PipedReader snk)
Creates a piped writer connected to the specified piped
reader.
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Public methods |
void
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close()
Closes this piped output stream and releases any system resources
associated with this stream.
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void
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connect(PipedReader snk)
Connects this piped writer to a receiver.
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void
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flush()
Flushes this output stream and forces any buffered output characters
to be written out.
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void
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write(int c)
Writes the specified char to the piped output stream.
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void
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write(char[] cbuf, int off, int len)
Writes len characters from the specified character array
starting at offset off to this piped output stream.
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Inherited methods |
From class
java.io.Writer
Writer
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append(char c)
Appends the specified character to this writer.
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Writer
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append(CharSequence csq, int start, int end)
Appends a subsequence of the specified character sequence to this writer.
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Writer
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append(CharSequence csq)
Appends the specified character sequence to this writer.
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abstract
void
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close()
Closes the stream, flushing it first.
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abstract
void
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flush()
Flushes the stream.
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static
Writer
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nullWriter()
Returns a new Writer which discards all characters.
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void
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write(String str)
Writes a string.
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void
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write(int c)
Writes a single character.
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void
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write(String str, int off, int len)
Writes a portion of a string.
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abstract
void
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write(char[] cbuf, int off, int len)
Writes a portion of an array of characters.
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void
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write(char[] cbuf)
Writes an array of characters.
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From class
java.lang.Object
Object
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clone()
Creates and returns a copy of this object.
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boolean
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equals(Object obj)
Indicates whether some other object is "equal to" this one.
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void
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finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
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final
Class<?>
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getClass()
Returns the runtime class of this Object .
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int
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hashCode()
Returns a hash code value for the object.
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final
void
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notify()
Wakes up a single thread that is waiting on this object's
monitor.
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final
void
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notifyAll()
Wakes up all threads that are waiting on this object's monitor.
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String
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toString()
Returns a string representation of the object.
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final
void
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wait(long timeoutMillis, int nanos)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
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final
void
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wait(long timeoutMillis)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
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final
void
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wait()
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted.
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From interface
java.lang.Appendable
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From interface
java.io.Closeable
abstract
void
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close()
Closes this stream and releases any system resources associated
with it.
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From interface
java.io.Flushable
abstract
void
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flush()
Flushes this stream by writing any buffered output to the underlying
stream.
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From interface
java.lang.AutoCloseable
abstract
void
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close()
Closes this resource, relinquishing any underlying resources.
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Public constructors
PipedWriter
public PipedWriter ()
Creates a piped writer that is not yet connected to a
piped reader. It must be connected to a piped reader,
either by the receiver or the sender, before being used.
PipedWriter
public PipedWriter (PipedReader snk)
Creates a piped writer connected to the specified piped
reader. Data characters written to this stream will then be
available as input from snk
.
Parameters |
snk |
PipedReader : The piped reader to connect to. |
Public methods
close
public void close ()
Closes this piped output stream and releases any system resources
associated with this stream. This stream may no longer be used for
writing characters.
connect
public void connect (PipedReader snk)
Connects this piped writer to a receiver. If this object
is already connected to some other piped reader, an
IOException
is thrown.
If snk
is an unconnected piped reader and
src
is an unconnected piped writer, they may
be connected by either the call:
src.connect(snk)
or the call:
snk.connect(src)
The two calls have the same effect.
Parameters |
snk |
PipedReader : the piped reader to connect to. |
flush
public void flush ()
Flushes this output stream and forces any buffered output characters
to be written out.
This will notify any readers that characters are waiting in the pipe.
Throws |
IOException |
if the pipe is closed, or an I/O error occurs. |
write
public void write (int c)
Writes the specified char
to the piped output stream.
If a thread was reading data characters from the connected piped input
stream, but the thread is no longer alive, then an
IOException
is thrown.
Implements the write
method of Writer
.
Parameters |
c |
int : the char to be written. |
write
public void write (char[] cbuf,
int off,
int len)
Writes len
characters from the specified character array
starting at offset off
to this piped output stream.
This method blocks until all the characters are written to the output
stream.
If a thread was reading data characters from the connected piped input
stream, but the thread is no longer alive, then an
IOException
is thrown.
Parameters |
cbuf |
char : the data. |
off |
int : the start offset in the data. |
len |
int : the number of characters to write. |