BrowserlessFeatureFlags

All Implemented Interfaces:

java.io.Serializable
```
public class BrowserlessFeatureFlags
extends FeatureFlags
                    
```
FeatureFlags implementation that applies test defined feature flag overrides on top of the ones resolved by Vaadin.
The instance is installed into the VaadinContext of the mock environment before the Vaadin servlet is initialized, so that everything reading feature flags during startup, for example a com.vaadin.flow.server.VaadinServiceInitListener, already observes the test configuration.
For internal use only. May be renamed or removed in a future release.

Since:

25.3

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description
`public final static String`	`PROPERTIES_FILENAME`
`public final static String`	`SYSTEM_PROPERTY_PREFIX_EXPERIMENTAL`
`public final static Feature`	`COLLABORATION_ENGINE_BACKEND`
`public final static Feature`	`ACCESSIBLE_DISABLED_BUTTONS`
`public final static Feature`	`COMPONENT_STYLE_INJECTION`
`public final static Feature`	`HILLA_FULLSTACK_SIGNALS`
`public final static Feature`	`LAYOUT_COMPONENT_IMPROVEMENTS`
`public final static Feature`	`DEFAULT_AUTO_RESPONSIVE_FORM_LAYOUT`
`public List<Feature>`	`features`

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`static void`	`install(VaadinContext context, Map<String, Boolean> overrides)`	Installs a FeatureFlags instance applying the given overrides into the given Vaadin context.
`void`	`loadProperties()`	Re-applies the test defined overrides, so that they are not silently discarded by code reloading the feature flags, for example through setPropertiesLocation.
`void`	`setEnabled(String featureId, boolean enabled)`	Toggles the feature for the current test only.

Methods inherited from class com.vaadin.experimental.FeatureFlags
get, getEnableHelperMessage, getFeatures, isEnabled, setPropertiesLocation
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - install
```
 static void install(VaadinContext context, Map<String, Boolean> overrides)
```
    Installs a FeatureFlags instance applying the given overrides into the given Vaadin context.
    Must be invoked before anything requests the feature flags for the context, otherwise Vaadin creates and caches its own instance.
    
    Parameters:
    
    context - the Vaadin context of the mock environment, not null
    
    overrides - feature identifiers mapped to their enablement state, not null
  - loadProperties
```
 void loadProperties()
```
    Re-applies the test defined overrides, so that they are not silently discarded by code reloading the feature flags, for example through setPropertiesLocation.
  - setEnabled
```
 void setEnabled(String featureId, boolean enabled)
```
    Toggles the feature for the current test only. Unlike the default implementation, it neither requires development mode nor stores the new state into the vaadin-featureflags.properties file of the project.
    The new state is recorded among the overrides, so that it survives a later reload of the feature flags, exactly like the states declared by the test configuration.