org.ehcache.impl.serialization
Class CompactJavaSerializer<T>

java.lang.Object
  org.ehcache.impl.serialization.CompactJavaSerializer<T>

All Implemented Interfaces:

java.io.Closeable, Serializer<T>

public class CompactJavaSerializer<T>
extends java.lang.Object
implements Serializer<T>, java.io.Closeable

A trivially compressed Java serialization based serializer.

Class descriptors in the resultant bytes are encoded as integers. Mappings between the integer representation and the ObjectStreamClass, and the Class and the integer representation are stored in a single on-heap map.

Nested Class Summary

protected static class

CompactJavaSerializer.SerializableDataKey

Constructor Summary

	CompactJavaSerializer(java.lang.ClassLoader loader)
protected	CompactJavaSerializer(java.lang.ClassLoader loader, java.util.Map<java.lang.Integer,java.io.ObjectStreamClass> mappings)

Method Summary

void	close()
protected static java.io.ObjectStreamClass	disconnect(java.io.ObjectStreamClass desc)
boolean	equals(T object, java.nio.ByteBuffer binary) Checks if the given instance and serial form are representations of the same instance.
java.io.ObjectInputStream	getObjectInputStream(java.io.InputStream input)
java.io.ObjectOutputStream	getObjectOutputStream(java.io.OutputStream out)
protected int	getOrAddMapping(java.io.ObjectStreamClass desc)
protected java.util.Map<java.lang.Integer,java.io.ObjectStreamClass>	getSerializationMappings()
T	read(java.nio.ByteBuffer binary) Reconstructs an instance from the given serial form.
java.nio.ByteBuffer	serialize(T object) Transforms the given instance into its serial form.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompactJavaSerializer

public CompactJavaSerializer(java.lang.ClassLoader loader)

CompactJavaSerializer

protected CompactJavaSerializer(java.lang.ClassLoader loader,
                                java.util.Map<java.lang.Integer,java.io.ObjectStreamClass> mappings)

Method Detail

getSerializationMappings

protected java.util.Map<java.lang.Integer,java.io.ObjectStreamClass> getSerializationMappings()

serialize

public java.nio.ByteBuffer serialize(T object)
                              throws SerializerException

Description copied from interface: Serializer

Transforms the given instance into its serial form.

Specified by:

serialize in interface Serializer<T>

Parameters:

object - the instance to serialize

Returns:

the binary representation of the serial form

Throws:

SerializerException - if serialization fails

read

public T read(java.nio.ByteBuffer binary)
       throws java.lang.ClassNotFoundException,
              SerializerException

Description copied from interface: Serializer

Reconstructs an instance from the given serial form.

Specified by:

read in interface Serializer<T>

Parameters:

binary - the binary representation of the serial form

Returns:

the de-serialized instance

Throws:

java.lang.ClassNotFoundException - if the type to de-serialize to cannot be found

SerializerException - if reading the byte buffer fails

getObjectOutputStream

public java.io.ObjectOutputStream getObjectOutputStream(java.io.OutputStream out)
                                                 throws java.io.IOException

Throws:

java.io.IOException

getObjectInputStream

public java.io.ObjectInputStream getObjectInputStream(java.io.InputStream input)
                                               throws java.io.IOException

Throws:

java.io.IOException

equals

public boolean equals(T object,
                      java.nio.ByteBuffer binary)
               throws java.lang.ClassNotFoundException,
                      SerializerException

Description copied from interface: Serializer

Checks if the given instance and serial form are representations of the same instance.

Specified by:

equals in interface Serializer<T>

Parameters:

object - the instance to check

binary - the serial form to check

Returns:

true if both parameters represent the same instance, false otherwise

Throws:

java.lang.ClassNotFoundException - if the type to de-serialize to cannot be found

SerializerException - if reading the byte buffer fails

getOrAddMapping

protected int getOrAddMapping(java.io.ObjectStreamClass desc)
                       throws java.io.IOException

Throws:

java.io.IOException

close

public void close()

Specified by:

close in interface java.io.Closeable

disconnect

protected static java.io.ObjectStreamClass disconnect(java.io.ObjectStreamClass desc)