java.rmi.server
Class RemoteObject

java.lang.Object
  extended by java.rmi.server.RemoteObject
All Implemented Interfaces:
Serializable, Remote
Direct Known Subclasses:
RemoteObjectInvocationHandler, RemoteServer, RemoteStub

public abstract class RemoteObject
extends Object
implements Remote, Serializable

See Also:
Serialized Form

Field Summary
protected  RemoteRef ref
           
 
Constructor Summary
protected RemoteObject()
           
protected RemoteObject(RemoteRef newref)
           
 
Method Summary
 boolean equals(Object obj)
          Determine whether this Object is semantically equal to another Object.
 RemoteRef getRef()
           
 int hashCode()
          Get a value that represents this Object, as uniquely as possible within the confines of an int.
 String toString()
          Get the string representation of this remote object.
static Remote toStub(Remote obj)
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

ref

protected transient RemoteRef ref
Constructor Detail

RemoteObject

protected RemoteObject()

RemoteObject

protected RemoteObject(RemoteRef newref)
Method Detail

getRef

public RemoteRef getRef()

toStub

public static Remote toStub(Remote obj)
                     throws NoSuchObjectException
Throws:
NoSuchObjectException

hashCode

public int hashCode()
Description copied from class: 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:

Notice that since hashCode is used in 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)

Overrides:
hashCode in class Object
Returns:
the hash code for this Object
See Also:
Object.equals(Object), System.identityHashCode(Object)

equals

public boolean equals(Object obj)
Description copied from class: Object
Determine whether this Object is semantically equal to another Object.

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

This is typically overridden to throw a ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

Overrides:
equals in class Object
Parameters:
obj - the Object to compare to
Returns:
whether this Object is semantically equal to another
See Also:
Object.hashCode()

toString

public String toString()
Get the string representation of this remote object.

Overrides:
toString in class Object
Returns:
the String representing this Object, which may be null
See Also:
Object.getClass(), Object.hashCode(), Class.getName(), Integer.toHexString(int)