EventSource.Emitter (Jetty :: Utility Servlets and Filters 9.3.29.v20201019 API)

All Known Implementing Classes:

EventSourceServlet.EventSourceEmitter

Enclosing interface:

EventSource
```
public static interface EventSource.Emitter
```
EventSource.Emitter is the active half of an event source connection, and allows applications to operate on the connection by sending events, data or comments, or by closing the connection.

An EventSource.Emitter instance will be created for each new event source connection.

EventSource.Emitter instances are fully thread safe and can be used from multiple threads.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`close()`	Closes this event source connection.
`void`	`comment(String comment)`	Sends a comment to the client.
`void`	`data(String data)`	Sends a default event with data to the client.
`void`	`event(String name, String data)`	Sends a named event with data to the client.

- Method Detail
  - event
```
void event(String name,
           String data)
    throws IOException
```
    Sends a named event with data to the client.
    
    When invoked as: event("foo", "bar"), the client will receive the lines:
    
    event: foo data: bar
    Parameters:
    
    name - the event name
    
    data - the data to be sent
    
    Throws:
    
    IOException - if an I/O failure occurred
    
    See Also:
    
    data(String)
  - data
```
void data(String data)
   throws IOException
```
    Sends a default event with data to the client.
    
    When invoked as: data("baz"), the client will receive the line:
    
    data: baz
    
    When invoked as: data("foo\r\nbar\rbaz\nbax"), the client will receive the lines:
    
    data: foo data: bar data: baz data: bax
    Parameters:
    
    data - the data to be sent
    
    Throws:
    
    IOException - if an I/O failure occurred
  - comment
```
void comment(String comment)
      throws IOException
```
    Sends a comment to the client.
    
    When invoked as: comment("foo"), the client will receive the line:
    
    : foo
    Parameters:
    
    comment - the comment to send
    
    Throws:
    
    IOException - if an I/O failure occurred
  - close
```
void close()
```
    Closes this event source connection.