ExtendedSingleInstanceService

All Superinterfaces:

SingleInstanceService

All Known Implementing Classes:

XSingleInstanceService
```
interface ExtendedSingleInstanceService
extends SingleInstanceService
```
Extends SingleInstanceService to provide a few additional methods that are required to initialize SingleInstanceService and check things. These methods are not exposed publicly

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`checkSingleInstanceRunning(JNLPFile jnlpFile)`	Check if the instance identified by this jnlp file is already running
`void`	`initializeSingleInstance()`	Start a single instance service based on the current application

Methods inherited from interface javax.jnlp.SingleInstanceService
addSingleInstanceListener, removeSingleInstanceListener

- Method Detail
  - checkSingleInstanceRunning
```
void checkSingleInstanceRunning(JNLPFile jnlpFile)
```
    Check if the instance identified by this jnlp file is already running
    
    Parameters:
    
    jnlpFile - The JNLPFile that specifies the application
    
    Throws:
    
    InstanceExistsException - if an instance of this application already exists
  - initializeSingleInstance
```
void initializeSingleInstance()
```
    Start a single instance service based on the current application