org.mmbase.util

Class StringBuilderWriter

java.lang.Object

java.io.Writer

org.mmbase.util.StringBuilderWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

public class StringBuilderWriter
extends Writer

Oddly enough, Java does not provide this itself. Code is nearly identical to java.io.StringWriter. Code is also a near copy of StringBufferWriter.

Since:

MMBase-1.9

Version:

$Id$

Author:

Michiel Meeuwissen

See Also:

StringWriter

Field Summary

Fields

Modifier and Type	Field and Description
protected StringBuilder	buffer

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor and Description
StringBuilderWriter(StringBuilder buffer) Create a new StringBufferWriter

Method Summary

Modifier and Type	Method and Description
void	close() Closing a StringBuilderWriter has no effect.
void	flush() Flush the stream.
StringBuilder	getBuffer() Return the string buffer itself.
String	toString() Return the buffer's current value as a string.
void	write(char[] charArray, int offset, int length) Write a portion of an array of characters.
void	write(int c) Write a single character.
void	write(String str) Write a string.
void	write(String str, int offset, int length) Write a portion of a string.

Methods inherited from class java.io.Writer

append, append, append, write

Methods inherited from class java.lang.Object

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

Field Detail

buffer

protected StringBuilder buffer

Constructor Detail

StringBuilderWriter

public StringBuilderWriter(StringBuilder buffer)

Create a new StringBufferWriter

Parameters:

buffer - The StringBuffer to use

Throws:

NullPointerException - if buffer is null.

Method Detail

write

public void write(int c)

Write a single character.

Overrides:

write in class Writer

write

public void write(char[] charArray,
                  int offset,
                  int length)

Write a portion of an array of characters.

Specified by:

write in class Writer

Parameters:

charArray - Array of characters

offset - Offset from which to start writing characters

length - Number of characters to write

write

public void write(String str)

Write a string.

Overrides:

write in class Writer

write

public void write(String str,
                  int offset,
                  int length)

Write a portion of a string.

Overrides:

write in class Writer

Parameters:

str - String to be written

offset - Offset from which to start writing characters

length - Number of characters to write

toString

public String toString()

Return the buffer's current value as a string.

Overrides:

toString in class Object

getBuffer

public StringBuilder getBuffer()

Return the string buffer itself.

Returns:

StringBuilder holding the current buffer value.

flush

public void flush()

Flush the stream.

Specified by:

flush in interface Flushable

Specified by:

flush in class Writer

close

public void close()
           throws IOException

Closing a StringBuilderWriter has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in class Writer

Throws:

IOException