ISCMessageDispatcher (SmartClient Enterprise Server API 10.1p (2022-05-28))

java.lang.Object
- com.isomorphic.messaging.ISCMessageDispatcher

```
public abstract class ISCMessageDispatcher
extends java.lang.Object
```
This is the base local dispatcher - it is an abstract class that provides same-jvm registration management and channel subscriptions. Use it to obtain a concrete message dispatcher class.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static ISCMessageDispatcher`	`instance()`
`static ISCMessageDispatcher`	`instance(RequestContext context)`
`boolean`	`isSubscribed(ISubscriber s, java.lang.String channel)` check to see if a given subscriber is subscribed to a given channel
`void`	`register(ISubscriber s)` register this subscriber
`void`	`send(ISCMessage msg)` send a message
`void`	`subscribe(ISubscriber s, java.lang.String channel)` subscribe a given subscriber to a given channel
`void`	`subscribe(ISubscriber s, java.lang.String channel, java.lang.String selector)` subscribe a given subscriber to a given channel
`void`	`unregister(ISubscriber s)` unregister this subscriber
`void`	`unsubscribe(ISubscriber s, java.lang.String channel)` unsubscribe a given subscriber from a given channel

Method Detail

instance
```
public static ISCMessageDispatcher instance(RequestContext context)
                                     throws java.lang.Exception
```
Parameters:

context -

Returns:

concrete ISCMessageDispatcher class capable of delivering responses to web browsers

Throws:

java.lang.Exception

instance
```
public static ISCMessageDispatcher instance()
                                     throws java.lang.Exception
```
Returns:

concrete ISCMessageDispatcher class capable of delivering responses within the JVM

Throws:

java.lang.Exception

register

public void register(ISubscriber s)
              throws java.lang.Exception

Parameters:: s -
Throws:: java.lang.Exception

unregister

public void unregister(ISubscriber s)
                throws java.lang.Exception

unregister this subscriber

Parameters:: s -
Throws:: java.lang.Exception

public void subscribe(ISubscriber s,
                      java.lang.String channel)
               throws java.lang.Exception

subscribe a given subscriber to a given channel

Parameters:: s -; channel -
Throws:: java.lang.Exception

public void subscribe(ISubscriber s,
                      java.lang.String channel,
                      java.lang.String selector)
               throws java.lang.Exception

subscribe a given subscriber to a given channel

Parameters:: s -; channel -; selector -
Throws:: java.lang.Exception

unsubscribe

public void unsubscribe(ISubscriber s,
                        java.lang.String channel)
                 throws java.lang.Exception

unsubscribe a given subscriber from a given channel

Parameters:: s -; channel -
Throws:: java.lang.Exception

send

public void send(ISCMessage msg)
          throws java.lang.Exception

send a message

Parameters:: msg -
Throws:: java.lang.Exception

isSubscribed
```
public boolean isSubscribed(ISubscriber s,
                            java.lang.String channel)
                     throws java.lang.Exception
```
check to see if a given subscriber is subscribed to a given channel

Parameters:

s -

channel -

Returns:

true if subscribed, false if not

Throws:

java.lang.Exception

Class ISCMessageDispatcher

Method Summary

Method Detail

instance

instance

register

unregister

subscribe

subscribe

unsubscribe

send

isSubscribed