Caplin Systems - BlotterApplicationListener (blotter 7.1.4-837-686faea API Reference)

```
public interface BlotterApplicationListener
```
Blotter Application Listener for callbacks when requests and discards for blotter channels are received: blotterChannelOpened(com.caplin.datasource.blotter.BlotterChannel) and blotterChannelClosed(com.caplin.datasource.blotter.BlotterChannel).

Once opened, BlotterItems can be sent on the received BlotterChannel.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`blotterChannelClosed(BlotterChannel channel)`	Callback invoked when a discard for a blotter is received.
`void`	`blotterChannelOpened(BlotterChannel channel)`	Callback invoked when a request for a blotter is received.

- Method Detail
  - blotterChannelOpened
```
void blotterChannelOpened(BlotterChannel channel)
```
    Callback invoked when a request for a blotter is received.
    
    Parameters:
    
    channel - BlotterChannel associated with requested subject.
  - blotterChannelClosed
```
void blotterChannelClosed(BlotterChannel channel)
```
    Callback invoked when a discard for a blotter is received.
    
    Parameters:
    
    channel - BlotterChannel associated with requested subject.