java.lang.Object | ||
↳ | java.io.Reader | |
↳ | java.io.PipedReader |
Piped character-input streams.
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Inherited Fields | |||||||||||
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From class
java.io.Reader
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Public Constructors | |||||||||||
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Creates a
PipedReader so
that it is connected to the piped writer
src . | |||||||||||
Creates a
PipedReader so that it is connected
to the piped writer src and uses the specified
pipe size for the pipe's buffer. | |||||||||||
Creates a
PipedReader so
that it is not yet connected . | |||||||||||
Creates a
PipedReader so that it is not yet
connected and uses
the specified pipe size for the pipe's buffer. |
Public Methods | |||||||||||
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Closes this piped stream and releases any system resources
associated with the stream.
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Causes this piped reader to be connected
to the piped writer
src . | |||||||||||
Reads the next character of data from this piped stream.
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Reads up to
len characters of data from this piped
stream into an array of characters. | |||||||||||
Tell whether this stream is ready to be read.
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Inherited Methods | |||||||||||
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From class
java.io.Reader
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From class
java.lang.Object
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From interface
java.io.Closeable
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From interface
java.lang.Readable
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Creates a PipedReader
so
that it is connected to the piped writer
src
. Data written to src
will then be available as input from this stream.
src | the stream to connect to. |
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IOException | if an I/O error occurs. |
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Creates a PipedReader
so that it is connected
to the piped writer src
and uses the specified
pipe size for the pipe's buffer. Data written to src
will then be available as input from this stream.
src | the stream to connect to. |
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pipeSize | the size of the pipe's buffer. |
IOException | if an I/O error occurs. |
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IllegalArgumentException | if pipeSize <= 0 . |
Creates a PipedReader
so that it is not yet
connected
and uses
the specified pipe size for the pipe's buffer.
It must be connected
to a PipedWriter
before being used.
pipeSize | the size of the pipe's buffer. |
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IllegalArgumentException | if pipeSize <= 0 . |
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Closes this piped stream and releases any system resources associated with the stream.
IOException | if an I/O error occurs. |
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Causes this piped reader to be connected
to the piped writer src
.
If this object is already connected to some
other piped writer, an IOException
is thrown.
If src
is an
unconnected piped writer and snk
is an unconnected piped reader, they
may be connected by either the call:
snk.connect(src)
or the call:
src.connect(snk)
The two calls have the same effect.
src | The piped writer to connect to. |
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IOException | if an I/O error occurs. |
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Reads the next character of data from this piped stream.
If no character is available because the end of the stream
has been reached, the value -1
is returned.
This method blocks until input data is available, the end of
the stream is detected, or an exception is thrown.
-1
if the end of the
stream is reached.IOException | if the pipe is
broken ,
unconnected , closed,
or an I/O error occurs.
|
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Reads up to len
characters of data from this piped
stream into an array of characters. Less than len
characters
will be read if the end of the data stream is reached or if
len
exceeds the pipe's buffer size. This method
blocks until at least one character of input is available.
cbuf | the buffer into which the data is read. |
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off | the start offset of the data. |
len | the maximum number of characters read. |
-1
if there is no more data because the end of
the stream has been reached.IOException | if the pipe is
broken ,
unconnected , closed,
or an I/O error occurs.
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Tell whether this stream is ready to be read. A piped character stream is ready if the circular buffer is not empty.
IOException | if the pipe is
broken ,
unconnected , or closed.
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