TBTJMSConnection Class Reference

A Connection object is a client's active connection to its JMS provider. More...

Inherits IMessageTransfomerSupport.

List of all members.

Public Member Functions

TBTJMSConnection MakeConnection ()
 A static helper method to create a new connection.
TBTJMSConnection MakeConnection (const string UserName, const string Password, const string URL)
 A static helper method to create a new connection.
 Start ()
 Starts (or restarts) a connection's delivery of incoming messages.
 Stop ()
 Temporarily stops a connection's delivery of incoming messages.
 Close ()
 Closes the connection.
ISession CreateSession (const Boolean Transacted, const TAcknowledgementMode AcknowledgementMode)
 Creates a new session to work on this connection.
 SetDefaultClientID (const string Value)
 Sets the default client id that the connection will use if explicitly not set with the SetClientID call.
 SetTransformer (const IMessageTransformer Transformer)
 Set the message transformer.
IMessageTransformer GetTransformer ()
 Get the message transformer.
string GetTransformationId ()
 Get the message transformation id.

Public Attributes

string ClientID
 The client identifier for this connection.
Boolean Closed
 Returns true if the connection is closed.
Boolean Closing
 Returns true if the connection is in the process of being closed.
Integer ConnectTimeOut
 Connect time out.
Integer SendTimeOut
 Send time out.
Boolean Started
 Returns true if this connection has been started.
TBTJMSClient Transport
 The communication adapter.

Protected Member Functions

 CheckClosedOrFailed ()
 simply throws an exception if the Connection is already closed or the Transport has failed
 CheckClientIDWasManuallySpecified ()
 Ensures that the ClientID was manually specified and not auto-generated.
 EnsureConnectionInfoSent ()
 Send the ConnectionInfo to the Broker.


Detailed Description

A Connection object is a client's active connection to its JMS provider.

A connection serves several purposes:


Member Function Documentation

TBTJMSConnection::CheckClientIDWasManuallySpecified (  )  [protected]

Ensures that the ClientID was manually specified and not auto-generated.

If the ClientID was not specified this method will throw an exception. This method is used to ensure that the ClientID + durableSubscriber name are used correctly.

TBTJMSConnection::CheckClosedOrFailed (  )  [protected]

simply throws an exception if the Connection is already closed or the Transport has failed

Exceptions:
JMSException 

TBTJMSConnection::Close (  ) 

Closes the connection.

Since a provider typically allocates significant resources on behalf of a connection, clients should close these resources when they are not needed.

ISession TBTJMSConnection::CreateSession ( const Boolean  Transacted,
const TAcknowledgementMode  AcknowledgementMode 
)

Creates a new session to work on this connection.

Parameters:
Transacted - indicates whether the session is transacted
AcknowledgementMode - indicates whether the consumer or the client will acknowledge any messages it receives; ignored if the session is transacted. Legal values are amClientAcknowledge and amAutoAcknowledge.

string TBTJMSConnection::GetTransformationId (  ) 

Get the message transformation id.

See also:
http://activemq.apache.org/message-transformation.html

IMessageTransformer TBTJMSConnection::GetTransformer (  ) 

Get the message transformer.

See also:
http://activemq.apache.org/message-transformation.html

TBTJMSConnection::SetTransformer ( const IMessageTransformer  Transformer  ) 

Set the message transformer.

See also:
http://activemq.apache.org/message-transformation.html

TBTJMSConnection::Start (  ) 

Starts (or restarts) a connection's delivery of incoming messages.

A call to start on a connection that has already been started is ignored.

TBTJMSConnection::Stop (  ) 

Temporarily stops a connection's delivery of incoming messages.

Delivery can be restarted using the connection's Start method.

When the connection is stopped, delivery to all the connection's message consumers is inhibited: synchronous receives block, and messages are not delivered to message listeners.

This call blocks until receives and/or message listeners in progress have completed.

Stopping a connection has no effect on its ability to send messages. A call to stop on a connection that has already been stopped is ignored.


Member Data Documentation

The client identifier for this connection.

The preferred way to assign a JMS client's client identifier is for it to be configured in a client-specific ConnectionFactory object and transparently assigned to the Connection object it creates.

Alternatively, a client can set a connection's client identifier using a provider-specific value. The facility to set a connection's client identifier explicitly is not a mechanism for overriding the identifier that has been administratively configured. It is provided for the case where no administratively specified identifier exists. If one does exist, an attempt to change it by setting it must throw an IllegalStateException. If a client sets the client identifier explicitly, it must do so immediately after it creates the connection and before any other action on the connection is taken. After this point, setting the client identifier is a programming error that should throw an IllegalStateException.

The purpose of the client identifier is to associate a connection and its objects with a state maintained on behalf of the client by a provider. The only such state identified by the JMS API is that required to support durable subscriptions.

If another connection with the same clientID is already running when this method is called, the JMS provider should detect the duplicate ID and throw an InvalidClientIDException.

See also:
GetClientID For reading

SetClientID For writing

Returns true if the connection is closed.

See also:
FClosed For reading

Returns true if the connection is in the process of being closed.

See also:
FClosing For reading

Connect time out.

Since:
1.9
Note:
Experimental feature.
See also:
FConnectTimeOut For reading

FConnectTimeOut For writing

Send time out.

Since:
1.4
Note:
Experimental feature.
See also:
FSendTimeOut For reading

SetSendTimeOut For writing

Returns true if this connection has been started.

See also:
FStarted For reading

SetStarted For writing

The communication adapter.

See also:
FTransport For reading


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