org.fife.io
Class DocumentReader

java.lang.Object
  java.io.Reader
      org.fife.io.DocumentReader

All Implemented Interfaces:

java.io.Closeable, java.lang.Readable

public class DocumentReader
extends java.io.Reader

A Reader for javax.swing.text.Document objects.

Version:

1.0

Author:

Robert Futrell

Field Summary

Fields inherited from class java.io.Reader

lock

Constructor Summary

DocumentReader(javax.swing.text.Document document)
Constructor.

Method Summary

void	close() This currently does nothing...
void	mark(int readAheadLimit) Marks the present position in the stream.
boolean	markSupported() Tells whether this reader supports the mark operation.
int	read() Reads the single character at the current position in the document.
int	read(char[] array) Read array.length characters from the beginning of the document into array.
int	read(char[] cbuf, int off, int len) Reads characters into a portion of an array.
boolean	ready() Tells whether this reader is ready to be read without blocking for input.
void	reset() Resets the stream.
void	seek(long pos) Move to the specified position in the document.
long	skip(long n) Skips characters.

Methods inherited from class java.io.Reader

read

Methods inherited from class java.lang.Object

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

Constructor Detail

DocumentReader

public DocumentReader(javax.swing.text.Document document)

Constructor.

Parameters:

document - The document we're 'reading'.

Method Detail

close

public void close()

This currently does nothing...

Specified by:

close in interface java.io.Closeable

Specified by:

close in class java.io.Reader

mark

public void mark(int readAheadLimit)

Marks the present position in the stream. Subsequent calls to reset() will reposition the stream to this point.

Overrides:

mark in class java.io.Reader

Parameters:

readAheadLimit - Ignored.

markSupported

public boolean markSupported()

Tells whether this reader supports the mark operation. This always returns true for DocumentReader.

Overrides:

markSupported in class java.io.Reader

read

public int read()

Reads the single character at the current position in the document.

Overrides:

read in class java.io.Reader

read

public int read(char[] array)

Read array.length characters from the beginning of the document into array.

Overrides:

read in class java.io.Reader

Parameters:

array - The array to read characters into.

Returns:

The number of characters read.

read

public int read(char[] cbuf,
                int off,
                int len)

Reads characters into a portion of an array.

Specified by:

read in class java.io.Reader

Parameters:

cbuf - The destination buffer.

off - Offset at which to start storing characters.

len - Maximum number of characters to read.

Returns:

The number of characters read, or -1 if the end of the stream (document) has been reached.

ready

public boolean ready()

Tells whether this reader is ready to be read without blocking for input. DocumentReader will always return true.

Overrides:

ready in class java.io.Reader

Returns:

true if the next read operation will return without blocking.

reset

public void reset()

Resets the stream. If the stream has been marked, then attempt to reposition it at the mark. If the stream has not been marked, then move it to the beginning of the document.

Overrides:

reset in class java.io.Reader

skip

public long skip(long n)

Skips characters. This will not 'skip' past the end of the document.

Overrides:

skip in class java.io.Reader

Parameters:

n - The number of characters to skip.

Returns:

The number of characters actually skipped.

seek

public void seek(long pos)

Move to the specified position in the document. If pos is greater than the document's length, the stream's position is moved to the end of the document.

Parameters:

pos - The position in the document to move to.