java.io

Class FilterWriter

public abstract class FilterWriter extends Writer

This class is the common superclass of output character stream classes that filter the output they write. These classes typically transform the data in some way prior to writing it out to another underlying Writer. This class simply overrides all the methods in Writer to redirect them to the underlying stream. Subclasses provide actual filtering.

Field Summary
protected Writer	out This is the subordinate `Writer` that this class redirects its method calls to.

Constructor Summary
protected	FilterWriter(Writer out) This method initializes an instance of `FilterWriter` to write to the specified subordinate `Writer`.

Method Summary
void	close() This method closes the underlying `Writer`.
void	flush() This method attempt to flush all buffered output to be written to the underlying output sink.
void	write(int b) This method writes a single char of output to the underlying `Writer`.
void	write(char[] buf, int offset, int len) This method writes `len` chars from the array `buf` starting at index `offset` to the underlying `Writer`.
void	write(String str, int offset, int len) This method writes `len` chars from the `String` starting at position `offset`.

Field Detail

out

protected Writer out

This is the subordinate Writer that this class redirects its method calls to.

Constructor Detail

FilterWriter

protected FilterWriter(Writer out)

This method initializes an instance of FilterWriter to write to the specified subordinate Writer. The given Writer will be used as lock for the newly created FilterWriter.

Parameters: out The Writer to write to

Method Detail

close

public void close()

This method closes the underlying Writer. Any further attempts to write to this stream may throw an exception.