DataSource (launchdarkly-java-server-sdk 7.3.0 API)

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable
```
public interface DataSource
extends java.io.Closeable
```
Interface for an object that receives updates to feature flags, user segments, and anything else that might come from LaunchDarkly, and passes them to a DataStore.
The standard implementations are:
- Components.streamingDataSource() (the default), which maintains a streaming connection to LaunchDarkly;
- Components.pollingDataSource(), which polls for updates at regular intervals;
- Components.externalUpdatesOnly(), which does nothing (on the assumption that another process will update the data store);
- FileData, which reads flag data from the filesystem.
Since:

5.0.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`close()`	Tells the component to shut down and release any resources it is using.
`boolean`	`isInitialized()`	Returns true once the client has been initialized and will never return false again.
`java.util.concurrent.Future<java.lang.Void>`	`start()`	Starts the client.

- Method Detail
  - start
```
java.util.concurrent.Future<java.lang.Void> start()
```
    Starts the client.
    
    Returns:
    
    Future's completion status indicates the client has been initialized.
  - isInitialized
```
boolean isInitialized()
```
    Returns true once the client has been initialized and will never return false again.
    
    Returns:
    
    true if the client has been initialized
  - close
```
void close()
    throws java.io.IOException
```
    Tells the component to shut down and release any resources it is using.
    
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Specified by:
    
    close in interface java.io.Closeable
    
    Throws:
    
    java.io.IOException - if there is an error while closing