net.sf.fikin.classmarshaling
Class MarshaledObjectOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.ObjectOutputStream
          net.sf.fikin.classmarshaling.MarshaledObjectOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.DataOutput, java.io.Flushable, java.io.ObjectOutput, java.io.ObjectStreamConstants

public class MarshaledObjectOutputStream
extends java.io.ObjectOutputStream

An ObjectOutputStream which is serializing the object and its classes in two parallel output stream.

It uses a ClassSelector to choose which classes to serialize and which not.

Used by MarshaledObject.MarshaledObject(Object, ClassSelector). created on Aug 2, 2005

Since:

Version:

$Revision: 1.1 $

Author:

fiykov

Nested Class Summary

Nested classes/interfaces inherited from class java.io.ObjectOutputStream

java.io.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

MarshaledObjectOutputStream(java.io.OutputStream objOut, java.io.OutputStream annOut, ClassSelector selector)
Instantiate the output stream using one stream for the object itself and another stream for selected class bytecodes.

Method Summary

protected void	annotateClass(java.lang.Class cl) an overloaded ObjectOutputStream.annotateClass(Class), serializing the class bytecode to the given to the constructor stream
void	flush() flush the streams call this before trying to obtain bytes from the output byte streams passed to the constructor this method can be called only once!
protected void	marshallClass(java.lang.Class cl) marshal class's bytecode It does that only once per gven class

Methods inherited from class java.io.ObjectOutputStream

annotateProxyClass, close, defaultWriteObject, drain, enableReplaceObject, putFields, replaceObject, reset, useProtocolVersion, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeClassDescriptor, writeDouble, writeFields, writeFloat, writeInt, writeLong, writeObject, writeObjectOverride, writeShort, writeStreamHeader, writeUnshared, writeUTF

Methods inherited from class java.lang.Object

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

Constructor Detail

MarshaledObjectOutputStream

public MarshaledObjectOutputStream(java.io.OutputStream objOut,
                                   java.io.OutputStream annOut,
                                   ClassSelector selector)
                            throws java.io.IOException

Instantiate the output stream using one stream for the object itself and another stream for selected class bytecodes.

Parameters:

objOut - is the stream for the serialized object

annOut - is the stream for the serialized classes (a map)

selector - used to select which class metadata to be marshaled together with the object

Throws:

java.io.IOException - during stream writing

Method Detail

flush

public void flush()
           throws java.io.IOException

flush the streams

call this before trying to obtain bytes from the output byte streams passed to the constructor this method can be called only once!

Specified by:

flush in interface java.io.Flushable

Specified by:

flush in interface java.io.ObjectOutput

Overrides:

flush in class java.io.ObjectOutputStream

Throws:

java.io.IOException - in case of internal error

annotateClass

protected void annotateClass(java.lang.Class cl)
                      throws java.io.IOException

an overloaded ObjectOutputStream.annotateClass(Class), serializing the class bytecode to the given to the constructor stream

Overrides:

annotateClass in class java.io.ObjectOutputStream

Parameters:

cl - to serialize

Throws:

java.io.IOException

marshallClass

protected void marshallClass(java.lang.Class cl)

marshal class's bytecode

It does that only once per gven class

Parameters:

cl - to serialize