NotificationManager (Java API Reference for Oracle® Coherence Community Edition)

```
public interface NotificationManager
```
A NotificationManager is responsible for JMX notification delivery from a managed node to a set of subscribing managing nodes.
For Standard MBeans that implement the NotificationEmitter interface and Platform MBeans registered with the Coherence Registry, notifications will be automatically sent to the corresponding MBean within the Coherence domain (e.g. "Coherence:type=Platform,Domain=java.lang,subType=Memory,nodeId=1"). Additionally, application logic can send notifications using the NotificationManager as follows:
```
   Cluster             cluster  = CacheFactory.ensureCluster();
   Registry            registry = cluster.getManagement();
   NotificationManager manager  = registry.getNotificationManger();
   String              sName    = registry.ensureGlobalName("type=CustomMBean");

   if (manager.isSubscribedTo(sName))
      {
      manager.trigger(sName, "custom.notification.type", "Custom notification message");
      }
 
```
Since:

Coherence 3.6

Author:

ew 2010.02.05

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isSubscribedTo(String sName)`	Determine if any subscriptions exist for the specified MBean.
`void`	`trigger(String sName, String sType, String sMessage)`	Trigger the notification on subscribers for a given MBean.
`void`	`trigger(String sName, Notification notification)`	Trigger the notification on subscribers for a given MBean.

- Method Detail
  - isSubscribedTo
```
boolean isSubscribedTo(String sName)
```
    Determine if any subscriptions exist for the specified MBean.
    
    Parameters:
    
    sName - the MBean name to check for subscriptions
    
    Returns:
    
    true iff the specified name identifies the MBean that was registered by the caller's node and subscriptions exist for that MBean
  - trigger
```
void trigger(String sName,
             String sType,
             String sMessage)
      throws IllegalArgumentException
```
    Trigger the notification on subscribers for a given MBean.
    
    Parameters:
    
    sName - the MBean name
    
    sType - the notification type
    
    sMessage - the notification message
    
    Throws:
    
    IllegalArgumentException - if an MBean with the specified name does not exists
  - trigger
```
void trigger(String sName,
             Notification notification)
      throws IllegalArgumentException
```
    Trigger the notification on subscribers for a given MBean.
    Note: if the specified Notification object has a negative SequenceNumber, it will be automatically assigned.
    
    Parameters:
    
    sName - the MBean name
    
    notification - the notification object
    
    Throws:
    
    IllegalArgumentException - if an MBean with the specified name does not exists