com.sun.cldc.i18n
Class StreamReader

java.lang.Object
  java.io.Reader
      com.sun.cldc.i18n.StreamReader

Direct Known Subclasses:

ISO8859_1_Reader

public abstract class StreamReader
extends Reader

General prototype for character converting stream readers.

Version:

1.0 11/16/99, 1.1 05/24/01

Field Summary

InputStream

in Input stream to read from

Fields inherited from class java.io.Reader

lock

Constructor Summary

StreamReader()

Method Summary

void	close() Close the stream.
void	mark(int readAheadLimit) Mark the present position in the stream.
boolean	markSupported() Tell whether this stream supports the mark() operation.
Reader	open(InputStream in, String enc) Open the reader
boolean	ready() Tell whether the underlying byte stream is ready to be read.
void	reset() Reset the stream.
abstract int	sizeOf(byte[] array, int offset, int length) Get the size in chars of an array of bytes

Methods inherited from class java.io.Reader

read, read, read, skip

Methods inherited from class java.lang.Object

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

Field Detail

in

public InputStream in

Input stream to read from

Constructor Detail

StreamReader

public StreamReader()

Method Detail

open

public Reader open(InputStream in,
                   String enc)
            throws UnsupportedEncodingException

Open the reader

Throws:

UnsupportedEncodingException

ready

public boolean ready()

Tell whether the underlying byte stream is ready to be read. Return false for those streams that do not support available(), such as the Win32 console stream.

Overrides:

ready in class Reader

Returns:

True if the next read() is guaranteed not to block for input, false otherwise. Note that returning false does not guarantee that the next read will block.

markSupported

public boolean markSupported()

Tell whether this stream supports the mark() operation.

Overrides:

markSupported in class Reader

Returns:

true if and only if this stream supports the mark operation.

mark

public void mark(int readAheadLimit)
          throws IOException

Mark the present position in the stream.

Overrides:

mark in class Reader

Parameters:

readAheadLimit - Limit on the number of characters that may be read while still preserving the mark. After reading this many characters, attempting to reset the stream may fail.

Throws:

IOException - If an I/O error occurs

reset

public void reset()
           throws IOException

Reset the stream.

Overrides:

reset in class Reader

Throws:

IOException - If an I/O error occurs

close

public void close()
           throws IOException

Close the stream.

Specified by:

close in class Reader

Throws:

IOException - If an I/O error occurs

sizeOf

public abstract int sizeOf(byte[] array,
                           int offset,
                           int length)

Get the size in chars of an array of bytes