All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

public class PipedWriter extends Writer

Piped character-output streams.

Since:

1.1

• Field Summary

• Constructor Summary

  Constructors

  Creates a piped writer that is not yet connected to a piped reader.

  Creates a piped writer connected to the specified piped reader.

• Method Summary

  void

  close()

  Closes this piped output stream and releases any system resources associated with this stream.

  void

  Connects this piped writer to a receiver.

  void

  flush()

  Flushes this output stream and forces any buffered output characters to be written out.

  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.

  void

  write(int c)

  Writes the specified char to the piped output stream.

  Methods declared in class java.lang.Object

  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Constructor Details

  • PipedWriter

    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 - The piped reader to connect to.

    Throws:

    IOException - if an I/O error occurs.

  • 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.

    See Also:

    • PipedReader.connect(java.io.PipedWriter)
    • connect(java.io.PipedReader)

• Method Details

  • connect

    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:

    or the call:

    The two calls have the same effect.

    Parameters:

    snk - the piped reader to connect to.

    Throws:

    IOException - if an I/O error occurs.

  • write

    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.

    Overrides:

    write in class Writer

    Parameters:

    c - the char to be written.

    Throws:

    IOException - if the pipe is broken, unconnected, closed or an I/O error occurs.

  • write

    public void write(char[] cbuf, int off, int len) throws IOException

    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.

    Specified by:

    write in class Writer

    Parameters:

    cbuf - the data.

    off - the start offset in the data.

    len - the number of characters to write.

    Throws:

    IndexOutOfBoundsException - If off is negative, or len is negative, or off + len is negative or greater than the length of the given array

    IOException - if the pipe is broken, unconnected, closed or an I/O error occurs.

  • 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.

    Specified by:

    flush in interface Flushable

    Specified by:

    flush in class Writer

    Throws:

    IOException - if the pipe is closed, or an I/O error occurs.

  • 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.

    Specified by:

    close in interface AutoCloseable

    Specified by:

    close in interface Closeable

    Specified by:

    close in class Writer

    Throws:

    IOException - if an I/O error occurs.