org.apache.deltaspike.core.spi.activation

Interface ClassDeactivator

All Superinterfaces:

Serializable

public interface ClassDeactivator
extends Serializable

DeltaSpike allows you to deactivate pre-configured parts (like Extensions, event-broadcasters,...). Therefore DeltaSpike offers ClassDeactivator and Deactivatable.

A ClassDeactivator allows to specify deactivated classes (if they implement Deactivatable) which can't be deactivated/customized via std. CDI mechanisms (like the veto-method or alternative/specialized CDI-beans). This might be the case e.g. for CDI Extensions because CDI mechanisms are not available at startup time.

Use it mainly to deactivate specific parts explicitly (blacklist approach), if there is an issue with such parts (and waiting for the next release isn't an option).

A class-deactivator will be resolved from the environment via the default resolvers or via a custom resolver which allows to use any type of configuration-format. See ConfigResolver for more information about how to configure it. The configuration key is org.apache.deltaspike.core.spi.activation.ClassDeactivator

All ClassDeactivators will get picked up in order of their ordinal and might explicitly activate or deactivate Deactivatable classes. Returning a null value means that the ClassDeactivator doesn't care about the Deactivatable class.

An implementation has to be stateless.

Method Summary

Methods

Modifier and Type	Method and Description
Boolean	isActivated(Class<? extends Deactivatable> targetClass) Provides classes which should be deactivated.

Method Detail

isActivated

Boolean isActivated(Class<? extends Deactivatable> targetClass)

Provides classes which should be deactivated.

Parameters:

targetClass - class which should be checked

Returns:

Boolean.FALSE if class should get activated, Boolean.FALSE if class must be available and null to let it as is (defined by default or other