Whole document tree


www.fifi.org
    Documentation
        Manpages
        GNU Info
        Debian document tree
        Whole document tree
    Trigance web page
    Public services
    User info
    Mailing lists
    Secure server
    Multilingual usage
 

Copyright (C) 2000-2012
Philippe Troin
<webmaster@fifi.org>.

Validate HTML
Validate CSS

    

Whole document tree

Java 2 Platform SE v1.3.1: Class MarshalledObject
Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
JavaTM 2 Platform
Std. Ed. v1.3.1
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES
SUMMARY:  INNER | FIELD | CONSTR | METHOD DETAIL:  FIELD | CONSTR | METHOD

java.rmi
Class MarshalledObject

java.lang.Object
  |
  +--java.rmi.MarshalledObject
All Implemented Interfaces:
Serializable
public final class MarshalledObject
extends Object
implements Serializable

A MarshalledObject contains a byte stream with the serialized representation of an object given to its constructor. The get method returns a new copy of the original object, as deserialized from the contained byte stream. The contained object is serialized and deserialized with the same serialization semantics used for marshaling and unmarshaling parameters and return values of RMI calls: When the serialized form is created:

  • classes are annotated with a codebase URL from where the class can be loaded (if available), and
  • any remote object in the MarshalledObject is represented by a serialized instance of its stub.

When copy of the object is retrieved (via the get method), if the class is not available locally, it will be loaded from the appropriate location (specified the URL annotated with the class descriptor when the class was serialized.

MarshalledObject facilitates passing objects in RMI calls that are not automatically deserialized immediately by the remote peer.

Since:
1.2
See Also:
Serialized Form

Constructor Summary
MarshalledObject(Object obj)
          Creates a new MarshalledObject that contains the serialized representation of the current state of the supplied object.
 
Method Summary
 boolean equals(Object obj)
          Compares this MarshalledObject to another object.
 Object get()
          Returns a new copy of the contained marshalledobject.
 int hashCode()
          Return a hash code for this MarshalledObject.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

MarshalledObject

public MarshalledObject(Object obj)
                 throws IOException
Creates a new MarshalledObject that contains the serialized representation of the current state of the supplied object. The object is serialized with the semantics used for marshaling parameters for RMI calls.
Parameters:
obj - the object to be serialized (must be serializable)
Throws:
IOException - if an IOException occurs; an IOException may occur if obj is not serializable.
Since:
1.2
Method Detail

get

public Object get()
           throws IOException,
                  ClassNotFoundException
Returns a new copy of the contained marshalledobject. The internal representation is deserialized with the semantics used for unmarshaling paramters for RMI calls.
Returns:
a copy of the contained object
Throws:
IOException - if an IOException occurs while deserializing the object from its internal representation.
ClassNotFoundException - if a ClassNotFoundException occurs while deserializing the object from its internal representation. could not be found
Since:
1.2

hashCode

public int hashCode()
Return a hash code for this MarshalledObject.
Overrides:
hashCode in class Object
Returns:
a hash code

equals

public boolean equals(Object obj)
Compares this MarshalledObject to another object. Returns true if and only if the argument refers to a MarshalledObject that contains exactly the same serialized representation of an object as this one does. The comparison ignores any class codebase annotation, meaning that two objects are equivalent if they have the same serialized representation except for the codebase of each class in the serialized representation.
Overrides:
equals in class Object
Parameters:
obj - the object to compare with this MarshalledObject
Returns:
true if the argument contains an equaivalent serialized object; false otherwise
Since:
1.2
Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
JavaTM 2 Platform
Std. Ed. v1.3.1
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES
SUMMARY:  INNER | FIELD | CONSTR | METHOD DETAIL:  FIELD | CONSTR | METHOD
Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Java, Java 2D, and JDBC are trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-2001 Sun Microsystems, Inc. 901 San Antonio Road
Palo Alto, California, 94303, U.S.A. All Rights Reserved.