com.sun.jini.mahalo.log
Class SimpleLogFile.HeaderlessObjectOutputStream

java.lang.Object
  extended by java.io.OutputStream
      extended by java.io.ObjectOutputStream
          extended by com.sun.jini.mahalo.log.SimpleLogFile.HeaderlessObjectOutputStream
All Implemented Interfaces:
Closeable, DataOutput, Flushable, ObjectOutput, ObjectStreamConstants
Enclosing class:
SimpleLogFile

private static class SimpleLogFile.HeaderlessObjectOutputStream
extends ObjectOutputStream

This class extends ObjectOutputStream and overrides the writeStreamHeader method to a no-op operation. This class is intended to be used in conjunction with HeaderlessObjectInputStream.


Nested Class Summary
 
Nested classes/interfaces inherited from class java.io.ObjectOutputStream
ObjectOutputStream.PutField
 
Field Summary
 
Fields inherited from interface java.io.ObjectStreamConstants
baseWireHandle, PROTOCOL_VERSION_1, PROTOCOL_VERSION_2, SC_BLOCK_DATA, SC_ENUM, SC_EXTERNALIZABLE, SC_SERIALIZABLE, SC_WRITE_METHOD, STREAM_MAGIC, STREAM_VERSION, SUBCLASS_IMPLEMENTATION_PERMISSION, SUBSTITUTION_PERMISSION, TC_ARRAY, TC_BASE, TC_BLOCKDATA, TC_BLOCKDATALONG, TC_CLASS, TC_CLASSDESC, TC_ENDBLOCKDATA, TC_ENUM, TC_EXCEPTION, TC_LONGSTRING, TC_MAX, TC_NULL, TC_OBJECT, TC_PROXYCLASSDESC, TC_REFERENCE, TC_RESET, TC_STRING
 
Constructor Summary
SimpleLogFile.HeaderlessObjectOutputStream(OutputStream out)
          Simple constructor that passes its argument to the superclass
 
Method Summary
protected  void writeStreamHeader()
          Overrides ObjectOutputStream's method with no-op functionality.
 
Methods inherited from class java.io.ObjectOutputStream
annotateClass, annotateProxyClass, close, defaultWriteObject, drain, enableReplaceObject, flush, putFields, replaceObject, reset, useProtocolVersion, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeClassDescriptor, writeDouble, writeFields, writeFloat, writeInt, writeLong, writeObject, writeObjectOverride, writeShort, writeUnshared, writeUTF
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SimpleLogFile.HeaderlessObjectOutputStream

public SimpleLogFile.HeaderlessObjectOutputStream(OutputStream out)
                                           throws IOException
Simple constructor that passes its argument to the superclass

Throws:
IOException - if an I/O error occurs
Method Detail

writeStreamHeader

protected void writeStreamHeader()
                          throws IOException
Overrides ObjectOutputStream's method with no-op functionality. This prevents header information from being sent to the stream, which makes appending to existing log files easier. Otherwise, appending header info to an existing log file would cause a corresponding ObjectInputStream to throw a StreamCorruptedException when it encountered the header information instead of the class/object type code information it was expecting.

Overrides:
writeStreamHeader in class ObjectOutputStream
Throws:
IOException - if an I/O error occurs


Copyright 2007-2010, multiple authors.
Licensed under the Apache License, Version 2.0, see the NOTICE file for attributions.