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TIBCO Rendezvous® 8.8.0

# VCTransport

Class

## Superclasses

    System.Object
      Transport
        VCTransport

## Visual Basic

    Public Class VCTransport
      Inherits Transport

## C#

    public class VCTransport : Transport

## Purpose

A virtual circuit transport object represents a terminal in a potential circuit.

## Remarks

A virtual circuit transport can fill the same roles as an ordinary transport. Programs can use them to create inbox names, send messages, create listeners and other events.

Instead of a constructor, this class has two create methods. These two methods also determine the protocol role of the transport object—one method creates a terminal that accepts connections, and another method creates a terminal that attempts to connect.

The two terminals play complementary roles as they attempt to establish a connection. However, this difference soon evaporates. After the connection is complete, the two terminals behave identically.

Method | Description | Page
## Public Static Methods
VCTransport.CreateAcceptVC | Create a virtual circuit accept object. | VCTransport.CreateAcceptVC
VCTransport.CreateConnectVC | Create a virtual circuit connect object | VCTransport.CreateConnectVC
## Public Instance Methods
VCTransport.WaitForVCConnection | Test the connection status of a virtual circuit. | VCTransport.WaitForVCConnection

## Broken Connection

The following conditions can close a virtual circuit connection:

| • | Contact is broken between the object and its terminal.

| • | The virtual circuit loses data in either direction (see DATALOSS in TIBCO Rendezvous Concepts).

| • | The partner program destroys its terminal object (or that terminal becomes invalid).

| • | The program destroys the object.

| • | The program destroys the object’s ordinary transport.

## Direct Communication

Because virtual circuits rely on point-to-point messages between the two terminals, they can use direct communication to good advantage. To do so, both terminals must use network transports that enable direct communication.

For an overview, see Direct Communication in TIBCO Rendezvous Concepts.

For programming details, see Specifying Direct Communication in TIBCO Rendezvous Concepts.

Inherited Methods
Description Transport.CreateInbox Transport.Destroy Transport.Send Transport.SendReply Transport.SendRequest

## Related Classes

Transport

IntraProcessTransport

NetTransport

## See Also

Virtual Circuits in TIBCO Rendezvous Concepts

Subtopics

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