Package org.apache.pekko.actor.typed.internal

Interface ExtensionsImpl

  • All Superinterfaces:
    Extensions
    public interface ExtensionsImpl
extends Extensions
    INTERNAL API

    Actor system extensions registry

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      <T extends Extension>
      T      		 createExtensionInstance​(ExtensionId<T> ext)  
      <T extends Extension>
      T      		 extension​(ExtensionId<T> ext)
      Returns the payload that is associated with the provided extension throws an IllegalStateException if it is not registered.
      <T extends Extension>
      T      		 findExtension​(ExtensionId<T> ext)
      Returns any extension registered to the specified Extension or returns null if not registered
      boolean hasExtension​(ExtensionId<? extends Extension> ext)
      Returns whether the specified extension is already registered, this method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
      void loadExtensions()
      Hook for ActorSystem to load extensions on startup
      <T extends Extension>
      T      		 registerExtension​(ExtensionId<T> ext)
      Registers the provided extension and creates its payload, if this extension isn't already registered This method has putIfAbsent-semantics, this method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution

    • Method Detail

      • extension

        <T extends Extension> T extension​(ExtensionId<T> ext)
        Description copied from interface: Extensions
        Returns the payload that is associated with the provided extension throws an IllegalStateException if it is not registered. This method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
        Specified by:
        extension in interface Extensions

      • findExtension

        <T extends Extension> T findExtension​(ExtensionId<T> ext)
        Returns any extension registered to the specified Extension or returns null if not registered

      • hasExtension

        boolean hasExtension​(ExtensionId<? extends Extension> ext)
        Description copied from interface: Extensions
        Returns whether the specified extension is already registered, this method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
        Specified by:
        hasExtension in interface Extensions

      • loadExtensions

        void loadExtensions()
        Hook for ActorSystem to load extensions on startup

      • registerExtension

        <T extends Extension> T registerExtension​(ExtensionId<T> ext)
        Description copied from interface: Extensions
        Registers the provided extension and creates its payload, if this extension isn't already registered This method has putIfAbsent-semantics, this method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
        Specified by:
        registerExtension in interface Extensions