br.shob
Class ShobObjectInputStream

java.lang.Object
  |
  +--java.io.InputStream
        |
        +--java.io.ObjectInputStream
              |
              +--br.shob.ShobObjectInputStream

All Implemented Interfaces:

DataInput, ObjectInput, ObjectStreamConstants

public class ShobObjectInputStream

extends ObjectInputStream

This is a special ObjectInputStream used in the Communication Layer that uses the given class loader to deserialize objects. Tipically, this classloader is a ShobClassLoader, a class loader that can dinamically locate, download and define a class previously unknown to this virtual machine.

Version:

$Revision: 1.5 $

Author:

dukejeffrie, crolmos

Created:

31 de Agosto de 2002

Field Summary

protected ClassLoader

loader The class loader used to deserialize shared objects

Fields inherited from interface java.io.ObjectStreamConstants

baseWireHandle, PROTOCOL_VERSION_1, PROTOCOL_VERSION_2, SC_BLOCK_DATA, 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_EXCEPTION, TC_LONGSTRING, TC_MAX, TC_NULL, TC_OBJECT, TC_PROXYCLASSDESC, TC_REFERENCE, TC_RESET, TC_STRING

Constructor Summary

ShobObjectInputStream(InputStream stream, ClassLoader loader)
Constructor for the ShobObjectInputStream object

Method Summary

protected Class

resolveClass(ObjectStreamClass desc) Uses its internal class loader to load the classes of the objects read from the stream

Methods inherited from class java.io.ObjectInputStream

available, close, defaultReadObject, enableResolveObject, read, read, readBoolean, readByte, readChar, readClassDescriptor, readDouble, readFields, readFloat, readFully, readFully, readInt, readLine, readLong, readObject, readObjectOverride, readShort, readStreamHeader, readUnshared, readUnsignedByte, readUnsignedShort, readUTF, registerValidation, resolveObject, resolveProxyClass, skipBytes

Methods inherited from class java.io.InputStream

mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.ObjectInput

read, skip

Field Detail

loader

protected ClassLoader loader

The class loader used to deserialize shared objects

Constructor Detail

ShobObjectInputStream

public ShobObjectInputStream(InputStream stream,
                             ClassLoader loader)
                      throws IOException

Constructor for the ShobObjectInputStream object

Parameters:

stream - The underlying input stream

loader - a class loader to load classes for objects read from the stream

Throws:

IOException - if an ObjectInputStream cannot be created over the argument input stream

Method Detail

resolveClass

protected Class resolveClass(ObjectStreamClass desc)
                      throws IOException,
                             ClassNotFoundException

Uses its internal class loader to load the classes of the objects read from the stream

Overrides:

resolveClass in class ObjectInputStream

Parameters:

desc - Description of the Parameter

Returns:

Description of the Return Value

Throws:

IOException - Description of the Exception

ClassNotFoundException - Description of the Exception