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java.rmi
Class MarshalledObject  

java.lang.Object
  java.rmi.MarshalledObject

All Implemented Interfaces:

java.io.Serializable

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public final class MarshalledObject

extends java.lang.Object

implements java.io.Serializable

A MarshalledObject consists of a serialized object which is marshalled according to the RMI specification.

An object passed to the constructor is serialized and tagged with the needed URL to retrieve its class definition for remote usage. If the object is a remote reference its stub is serialized instead. The instance of this marshalled object can be later retrieved by its get() method.

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Field Summary
(package private)  int	hash
(package private)  byte[]	locBytes
(package private)  byte[]	objBytes
private static long	serialVersionUID

 

Constructor Summary

MarshalledObject(java.lang.Object obj)           Constructs a MarshalledObject from the given object.

 

Method Summary
boolean	equals(java.lang.Object obj)           Checks if the given object is equal to this marshalled object.
java.lang.Object	get()           Constructs and returns a copy of the internal serialized object.
int	hashCode()           Get a value that represents this Object, as uniquely as possible within the confines of an int.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

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objBytes

byte[] objBytes

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locBytes

byte[] locBytes

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hash

int hash

Constructor Detail

MarshalledObject

public MarshalledObject(java.lang.Object obj)
                 throws java.io.IOException

Constructs a MarshalledObject from the given object.

Method Detail

equals

public boolean equals(java.lang.Object obj)

Checks if the given object is equal to this marshalled object.

Marshalled objects are considered equal if they contain the same serialized object. Codebase annotations where the class definition can be downloaded are ignored in the equals test.

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get

public java.lang.Object get()
                     throws java.io.IOException,
                            java.lang.ClassNotFoundException

Constructs and returns a copy of the internal serialized object.

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hashCode

public int hashCode()

Description copied from class: java.lang.Object

Get a value that represents this Object, as uniquely as possible within the confines of an int.

There are some requirements on this method which subclasses must follow:

• Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
• It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)

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