Package org.jppf.utils

Class ObjectSerializerImpl

java.lang.Object

org.jppf.utils.ObjectSerializerImpl

All Implemented Interfaces:

ObjectSerializer

public class ObjectSerializerImpl
extends Object
implements ObjectSerializer

Instances of this class are used to serialize or deserialize objects to or from an array of bytes.
A specific use of this class is that it can be loaded by a new classloader, making the execution transparent to any change in the client code.

Author:

Laurent Cohen

Constructor Summary

Constructors

Constructor	Description
ObjectSerializerImpl()	The default constructor must be public to allow for instantiation through Java reflection.

Method Summary

Modifier and Type	Method	Description
Object	deserialize(byte[] bytes)	Read an object from an array of bytes.
Object	deserialize(byte[] bytes, int offset, int length)	Read an object from an array of bytes.
Object	deserialize(InputStream is)	Read an object from an input stream.
Object	deserialize(InputStream is, boolean closeStream)	Read an object from an input stream.
Object	deserialize(JPPFBuffer buf)	Read an object from an array of bytes.
JPPFBuffer	serialize(Object o)	Serialize an object into an array of bytes.
JPPFBuffer	serialize(Object o, boolean noCopy)	Serialize an object into an array of bytes.
void	serialize(Object o, OutputStream os)	Serialize an object into an output stream.

Methods inherited from class java.lang.Object

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

Constructor Details

ObjectSerializerImpl

public ObjectSerializerImpl()

The default constructor must be public to allow for instantiation through Java reflection.

Method Details

serialize

public JPPFBuffer serialize(Object o)
                     throws Exception

Serialize an object into an array of bytes.

Specified by:

serialize in interface ObjectSerializer

Parameters:

o - the object to Serialize.

Returns:

a JPPFBuffer instance holding the serialized object.

Throws:

Exception - if the object can't be serialized.

serialize

public JPPFBuffer serialize(Object o,
 boolean noCopy)
                     throws Exception

Serialize an object into an array of bytes.

Specified by:

serialize in interface ObjectSerializer

Parameters:

o - the object to Serialize.

noCopy - avoid copying intermediate buffers.

Returns:

a JPPFBuffer instance holding the serialized object.

Throws:

Exception - if the object can't be serialized.

serialize

public void serialize(Object o,
 OutputStream os)
               throws Exception

Serialize an object into an output stream.

Specified by:

serialize in interface ObjectSerializer

Parameters:

o - the object to Serialize.

os - the output stream to serialize to.

Throws:

Exception - if the object can't be serialized.

deserialize

public Object deserialize(JPPFBuffer buf)
                   throws Exception

Read an object from an array of bytes.

Specified by:

deserialize in interface ObjectSerializer

Parameters:

buf - buffer holding the array of bytes to deserialize from.

Returns:

the object that was deserialized from the array of bytes.

Throws:

Exception - if the ObjectInputStream used for deserialization raises an error.

deserialize

public Object deserialize(byte[] bytes)
                   throws Exception

Read an object from an array of bytes.

Specified by:

deserialize in interface ObjectSerializer

Parameters:

bytes - buffer holding the array of bytes to deserialize from.

Returns:

the object that was deserialized from the array of bytes.

Throws:

Exception - if the ObjectInputStream used for deserialization raises an error.

deserialize

public Object deserialize(byte[] bytes,
 int offset,
 int length)
                   throws Exception

Read an object from an array of bytes.

Specified by:

deserialize in interface ObjectSerializer

Parameters:

bytes - buffer holding the array of bytes to deserialize from.

offset - position at which to start reading the bytes from.

length - the number of bytes to read.

Returns:

the object that was deserialized from the array of bytes.

Throws:

Exception - if the ObjectInputStream used for deserialization raises an error.

deserialize

public Object deserialize(InputStream is)
                   throws Exception

Description copied from interface: ObjectSerializer

Read an object from an input stream.

Specified by:

deserialize in interface ObjectSerializer

Parameters:

is - the input stream to deserialize from.

Returns:

the object that was deserialized from the array of bytes.

Throws:

Exception - if the ObjectInputStream used for deserialization raises an error.

deserialize

public Object deserialize(InputStream is,
 boolean closeStream)
                   throws Exception

Read an object from an input stream.

Parameters:

is - the input stream to deserialize from.

closeStream - true to close the stream, false otherwise.

Returns:

the object that was deserialized from the array of bytes.

Throws:

Exception - if the ObjectInputStream used for deserialization raises an error.