org.jppf.serialization
Class JPPFObjectOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.ObjectOutputStream
          org.jppf.serialization.JPPFObjectOutputStream

All Implemented Interfaces:

Closeable, DataOutput, Flushable, ObjectOutput, ObjectStreamConstants

public class JPPFObjectOutputStream
extends ObjectOutputStream

Implementation of ObjectOutputStream that writes objects without regards to whether they implement Serializable or not. This allows using non-serializable classes in JPPF tasks, especially when their source code is not available.

The rest of the ObjectOutputStream specification is respected:

• transient fields are not serialized
• private void writeObject(ObjectOutputStream) is used whenever implemented
• the Externalized interface is respected

Author:

Laurent Cohen

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

JPPFObjectOutputStream(OutputStream out)
Initialize this object stream.

Method Summary

void	close()
void	defaultWriteObject()
void	flush()
ObjectOutputStream.PutField	putFields()
void	write(byte[] buf)
void	write(byte[] buf, int off, int len)
void	write(int val)
void	writeBoolean(boolean val)
void	writeByte(int val)
void	writeBytes(String str)
void	writeChar(int val)
void	writeChars(String str)
void	writeDouble(double val)
void	writeFields()
void	writeFloat(float val)
void	writeInt(int val)
void	writeLong(long val)
protected void	writeObjectOverride(Object obj)
void	writeShort(int val)
void	writeUTF(String str)

Methods inherited from class java.io.ObjectOutputStream

annotateClass, annotateProxyClass, drain, enableReplaceObject, replaceObject, reset, useProtocolVersion, writeClassDescriptor, writeObject, writeStreamHeader, writeUnshared

Methods inherited from class java.lang.Object

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

Constructor Detail

JPPFObjectOutputStream

public JPPFObjectOutputStream(OutputStream out)
                       throws IOException

Initialize this object stream.

Parameters:

out - the stream to write objects to.

Throws:

IOException - if any error occurs.

Method Detail

writeObjectOverride

protected final void writeObjectOverride(Object obj)
                                  throws IOException

Overrides:

writeObjectOverride in class ObjectOutputStream

Throws:

IOException

write

public void write(int val)
           throws IOException

Specified by:

write in interface DataOutput

Specified by:

write in interface ObjectOutput

Overrides:

write in class ObjectOutputStream

Throws:

IOException

write

public void write(byte[] buf)
           throws IOException

Specified by:

write in interface DataOutput

Specified by:

write in interface ObjectOutput

Overrides:

write in class ObjectOutputStream

Throws:

IOException

write

public void write(byte[] buf,
                  int off,
                  int len)
           throws IOException

Specified by:

write in interface DataOutput

Specified by:

write in interface ObjectOutput

Overrides:

write in class ObjectOutputStream

Throws:

IOException

writeBoolean

public void writeBoolean(boolean val)
                  throws IOException

Specified by:

writeBoolean in interface DataOutput

Overrides:

writeBoolean in class ObjectOutputStream

Throws:

IOException

writeByte

public void writeByte(int val)
               throws IOException

Specified by:

writeByte in interface DataOutput

Overrides:

writeByte in class ObjectOutputStream

Throws:

IOException

writeShort

public void writeShort(int val)
                throws IOException

Specified by:

writeShort in interface DataOutput

Overrides:

writeShort in class ObjectOutputStream

Throws:

IOException

writeChar

public void writeChar(int val)
               throws IOException

Specified by:

writeChar in interface DataOutput

Overrides:

writeChar in class ObjectOutputStream

Throws:

IOException

writeInt

public void writeInt(int val)
              throws IOException

Specified by:

writeInt in interface DataOutput

Overrides:

writeInt in class ObjectOutputStream

Throws:

IOException

writeLong

public void writeLong(long val)
               throws IOException

Specified by:

writeLong in interface DataOutput

Overrides:

writeLong in class ObjectOutputStream

Throws:

IOException

writeFloat

public void writeFloat(float val)
                throws IOException

Specified by:

writeFloat in interface DataOutput

Overrides:

writeFloat in class ObjectOutputStream

Throws:

IOException

writeDouble

public void writeDouble(double val)
                 throws IOException

Specified by:

writeDouble in interface DataOutput

Overrides:

writeDouble in class ObjectOutputStream

Throws:

IOException

writeBytes

public void writeBytes(String str)
                throws IOException

Specified by:

writeBytes in interface DataOutput

Overrides:

writeBytes in class ObjectOutputStream

Throws:

IOException

writeChars

public void writeChars(String str)
                throws IOException

Specified by:

writeChars in interface DataOutput

Overrides:

writeChars in class ObjectOutputStream

Throws:

IOException

writeUTF

public void writeUTF(String str)
              throws IOException

Specified by:

writeUTF in interface DataOutput

Overrides:

writeUTF in class ObjectOutputStream

Throws:

IOException

defaultWriteObject

public void defaultWriteObject()
                        throws IOException

Overrides:

defaultWriteObject in class ObjectOutputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Specified by:

flush in interface ObjectOutput

Overrides:

flush in class ObjectOutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface ObjectOutput

Overrides:

close in class ObjectOutputStream

Throws:

IOException

putFields

public ObjectOutputStream.PutField putFields()
                                      throws IOException

Overrides:

putFields in class ObjectOutputStream

Throws:

IOException

writeFields

public void writeFields()
                 throws IOException

Overrides:

writeFields in class ObjectOutputStream

Throws:

IOException