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

java.lang.Object
- com.launchdarkly.sdk.server.integrations.PollingDataSourceBuilder

All Implemented Interfaces:

ComponentConfigurer<DataSource>
```
public abstract class PollingDataSourceBuilder
extends java.lang.Object
implements ComponentConfigurer<DataSource>
```
Contains methods for configuring the polling data source.
Polling is not the default behavior; by default, the SDK uses a streaming connection to receive feature flag data from LaunchDarkly. In polling mode, the SDK instead makes a new HTTP request to LaunchDarkly at regular intervals. HTTP caching allows it to avoid redundantly downloading data if there have been no changes, but polling is still less efficient than streaming and should only be used on the advice of LaunchDarkly support.
To use polling mode, create a builder with Components.pollingDataSource(), change its properties with the methods of this class, and pass it to LDConfig.Builder.dataSource(ComponentConfigurer):
```
     LDConfig config = new LDConfig.Builder()
         .dataSource(Components.pollingDataSource().pollInterval(Duration.ofSeconds(45)))
         .build();
 
```
Note that this class is abstract; the actual implementation is created by calling Components.pollingDataSource().
Since:

4.12.0

Field Summary

Fields
Modifier and Type	Field	Description
`static java.time.Duration`	`DEFAULT_POLL_INTERVAL`	The default and minimum value for `pollInterval(Duration)`: 30 seconds.
`protected java.lang.String`	`payloadFilter`
`protected java.time.Duration`	`pollInterval`

Constructor Summary

Constructors
Constructor Description

PollingDataSourceBuilder()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PollingDataSourceBuilder`	`payloadFilter(java.lang.String payloadFilter)`	Sets the Payload Filter that will be used to filter the objects (flags, segments, etc.) from this data source.
`PollingDataSourceBuilder`	`pollInterval(java.time.Duration pollInterval)`	Sets the interval at which the SDK will poll for feature flag updates.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.launchdarkly.sdk.server.subsystems.ComponentConfigurer
build

- Field Detail
  - DEFAULT_POLL_INTERVAL
```
public static final java.time.Duration DEFAULT_POLL_INTERVAL
```
    The default and minimum value for pollInterval(Duration): 30 seconds.
  - pollInterval
```
protected java.time.Duration pollInterval
```
  - payloadFilter
```
protected java.lang.String payloadFilter
```
- Constructor Detail
  - PollingDataSourceBuilder
```
public PollingDataSourceBuilder()
```
- Method Detail
  - pollInterval
```
public PollingDataSourceBuilder pollInterval(java.time.Duration pollInterval)
```
    Sets the interval at which the SDK will poll for feature flag updates.
    The default and minimum value is DEFAULT_POLL_INTERVAL. Values less than this will be set to the default.
    
    Parameters:
    
    pollInterval - the polling interval; null to use the default
    
    Returns:
    
    the builder
  - payloadFilter
```
public PollingDataSourceBuilder payloadFilter(java.lang.String payloadFilter)
```
    Sets the Payload Filter that will be used to filter the objects (flags, segments, etc.) from this data source.
    
    Parameters:
    
    payloadFilter - the filter to be used
    
    Returns:
    
    the builder