Transport

extends Object

java.lang.Object
↳	sun.rmi.transport.Transport

Known Direct Subclasses

TCPTransport

Class Overview

Transport abstraction for enabling communication between different VMs.

Summary

Public Constructors
	Transport()

Public Methods
void	exportObject(Target target) Export the object so that it can accept incoming calls.
abstract void	free(Endpoint ep) Removes the Channel that generates connections to the endpoint ep.
abstract Channel	getChannel(Endpoint ep) Returns a Channel that generates connections to the endpoint ep.
boolean	serviceCall(RemoteCall call) Service an incoming remote call.

Protected Methods
abstract void	checkAcceptPermission(AccessControlContext acc) Verify that the current access control context has permission to accept the connection being dispatched by the current thread.
void	targetUnexported() Invoked when an object that was exported on this transport has become unexported, either by being garbage collected or by being explicitly unexported.

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Inherited Methods

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

Public Constructors

public Transport ()

Public Methods

public void exportObject (Target target)

Export the object so that it can accept incoming calls.

Throws

RemoteException

public abstract void free (Endpoint ep)

Removes the Channel that generates connections to the endpoint ep.

public abstract Channel getChannel (Endpoint ep)

Returns a Channel that generates connections to the endpoint ep. A Channel is an object that creates and manages connections of a particular type to some particular address space.

Parameters

ep	the endpoint to which connections will be generated.

Returns

the channel or null if the transport cannot generate connections to this endpoint

public boolean serviceCall (RemoteCall call)

Service an incoming remote call. When a message arrives on the connection indicating the beginning of a remote call, the threads are required to call the serviceCall method of their transport. The default implementation of this method locates and calls the dispatcher object. Ordinarily a transport implementation will not need to override this method. At the entry to tr.serviceCall(conn), the connection's input stream is positioned at the start of the incoming message. The serviceCall method processes the incoming remote invocation and sends the result on the connection's output stream. If it returns "true", then the remote invocation was processed without error and the transport can cache the connection. If it returns "false", a protocol error occurred during the call, and the transport should destroy the connection.

Protected Methods

protected abstract void checkAcceptPermission (AccessControlContext acc)

Verify that the current access control context has permission to accept the connection being dispatched by the current thread. The current access control context is passed as a parameter to avoid the overhead of an additional call to AccessController.getContext.

protected void targetUnexported ()

Invoked when an object that was exported on this transport has become unexported, either by being garbage collected or by being explicitly unexported.

Interfaces

Classes