de.hybris.bootstrap.xml

Class UndoableWriterWrapper

java.lang.Object

java.io.Writer

de.hybris.bootstrap.xml.UndoableWriterWrapper

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.Appendable, java.lang.AutoCloseable

public class UndoableWriterWrapper
extends java.io.Writer

Writer wrapper implementation which allows to write a certain amount of (string) data and removing it afterwards from the output.

 UndoableWriterWrapper wr = new UndoableWriterWrapper(actualWriter);
 
 // start undoable writing
 wr.markSavePoint();
 try
 {
        // ... write into wrapper ...
 
        // finally store changes
        wr.commitSavePoint();
 }
 catch (Exception e)
 {
        // discard any changes
        wr.restoreSavePoint();
 }
 

Field Summary

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor and Description
UndoableWriterWrapper(java.io.Writer writer)

Method Summary

Modifier and Type	Method and Description
void	close()
void	commitSavePoint()
void	flush()
void	markSavePoint()
void	restoreSavePoint()
void	write(char[] cbuf, int off, int len)

Methods inherited from class java.io.Writer

append, append, append, write, write, write, write

Methods inherited from class java.lang.Object

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

Constructor Detail

UndoableWriterWrapper

public UndoableWriterWrapper(java.io.Writer writer)

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in class java.io.Writer

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Specified by:

flush in interface java.io.Flushable

Specified by:

flush in class java.io.Writer

Throws:

java.io.IOException

write

public void write(char[] cbuf,
                  int off,
                  int len)
           throws java.io.IOException

Specified by:

write in class java.io.Writer

Throws:

java.io.IOException

markSavePoint

public void markSavePoint()

restoreSavePoint

public void restoreSavePoint()

commitSavePoint

public void commitSavePoint()