org.apache.commons.lang
Class SerializationUtils

java.lang.Object
  |
  +--org.apache.commons.lang.SerializationUtils

public class SerializationUtils

extends Object

Methods that assist with the serialization process, or perform additional functionality based on serialization.

• Deep clone using serialization
• Serialize managing finally and IOException
• Deserialize managing finally and IOException

Version:

$Id: SerializationUtils.java,v 1.2 2002/08/31 11:09:45 scolebourne Exp $

Author:

Nissim Karpenstein, Janek Bogucki, Daniel Rall, Stephen Colebourne

Constructor Summary

private

SerializationUtils() Constructor for SerializationUtils is private

Method Summary

static Object	clone(Serializable object) Deep clone an object using serialization.
static Object	deserialize(byte[] objectData) Deserializes a single object from an array of bytes.
static Object	deserialize(InputStream inputStream) Deserializes an object from the specified stream.
static byte[]	serialize(Serializable obj) Serializes an object to a byte array for storage/serialization.
static void	serialize(Serializable obj, OutputStream outputStream) Serializes an object to the specified stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

SerializationUtils

private SerializationUtils()

Constructor for SerializationUtils is private

Method Detail

clone

public static Object clone(Serializable object)

Deep clone an object using serialization.

This is many times slower than writing clone methods by hand on all objects in your object graph. However, for complex object graphs, or for those that don't support deep cloning this can be a simple alternative implementation. Of course all the objects must be Serializable.

Parameters:

object - the Serializable object to clone

Returns:

the cloned object

Throws:

SerializationException - (runtime) if the serialization fails

serialize

public static void serialize(Serializable obj,
                             OutputStream outputStream)

Serializes an object to the specified stream. The stream will be closed once the object is written. This avoids the need for a finally clause, and maybe also exception handling, in the application code.

Parameters:

obj - the object to serialize to bytes

outputStream - the stream to write to

Throws:

SerializationException - (runtime) if the serialization fails

serialize

public static byte[] serialize(Serializable obj)

Serializes an object to a byte array for storage/serialization.

Parameters:

obj - the object to serialize to bytes

Returns:

a byte[] with the converted Serializable

Throws:

SerializationException - (runtime) if the serialization fails

deserialize

public static Object deserialize(InputStream inputStream)

Deserializes an object from the specified stream. The stream will be closed once the object is written. This avoids the need for a finally clause, and maybe also exception handling, in the application code.

Parameters:

inputStream - the serialized object input stream

Returns:

the deserialized object

Throws:

SerializationException - (runtime) if the serialization fails

deserialize

public static Object deserialize(byte[] objectData)

Deserializes a single object from an array of bytes.

Parameters:

objectData - the serialized object

Returns:

the deserialized object

Throws:

SerializationException - (runtime) if the serialization fails