Package org.apache.pekko.actor

Class DynamicAccess

java.lang.Object

org.apache.pekko.actor.DynamicAccess

Direct Known Subclasses:

ReflectiveDynamicAccess

public abstract class DynamicAccess
extends Object

The DynamicAccess implementation is the class which is used for loading all configurable parts of an actor system (the pekko.actor.ReflectiveDynamicAccess is the default implementation).

This is an internal facility and users are not expected to encounter it unless they are extending Pekko in ways which go beyond simple Extensions.

Not for user extension

Constructor Summary

Constructors

Constructor	Description
DynamicAccess()

Method Summary

Modifier and Type	Method	Description
abstract boolean	classIsOnClasspath(String fqcn)
abstract ClassLoader	classLoader()	This is the class loader to be used in those special cases where the other factory method are not applicable (e.g.
abstract <T> scala.util.Try<T>	createInstanceFor(Class<?> clazz, scala.collection.immutable.Seq<scala.Tuple2<Class<?>,Object>> args, scala.reflect.ClassTag<T> evidence$1)	Convenience method which given a Class[_] object and a constructor description will create a new instance of that class.
abstract <T> scala.util.Try<T>	createInstanceFor(String fqcn, scala.collection.immutable.Seq<scala.Tuple2<Class<?>,Object>> args, scala.reflect.ClassTag<T> evidence$3)	Obtain an object conforming to the type T, which is expected to be instantiated from a class designated by the fully-qualified class name given, where the constructor is selected and invoked according to the args argument.
abstract <T> scala.util.Try<Class<? extends T>>	getClassFor(String fqcn, scala.reflect.ClassTag<T> evidence$2)	Obtain a Class[_] object loaded with the right class loader (i.e.
abstract <T> scala.util.Try<T>	getObjectFor(String fqcn, scala.reflect.ClassTag<T> evidence$4)	Obtain the Scala &ldquo;object&rdquo; instance for the given fully-qualified class name, if there is one.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DynamicAccess

public DynamicAccess()

Method Details

classIsOnClasspath

public abstract boolean classIsOnClasspath(String fqcn)

classLoader

public abstract ClassLoader classLoader()

This is the class loader to be used in those special cases where the other factory method are not applicable (e.g. when constructing a ClassLoaderBinaryInputStream).

createInstanceFor

public abstract <T> scala.util.Try<T> createInstanceFor(Class<?> clazz,
 scala.collection.immutable.Seq<scala.Tuple2<Class<?>,Object>> args,
 scala.reflect.ClassTag<T> evidence$1)

Convenience method which given a Class[_] object and a constructor description will create a new instance of that class.

 val obj = DynamicAccess.createInstanceFor(clazz, Seq(classOf[Config] -> config, classOf[String] -> name))
 

createInstanceFor

public abstract <T> scala.util.Try<T> createInstanceFor(String fqcn,
 scala.collection.immutable.Seq<scala.Tuple2<Class<?>,Object>> args,
 scala.reflect.ClassTag<T> evidence$3)

Obtain an object conforming to the type T, which is expected to be instantiated from a class designated by the fully-qualified class name given, where the constructor is selected and invoked according to the args argument. The exact usage of args depends on which type is requested, see the relevant requesting code for details.

getClassFor

public abstract <T>
scala.util.Try<Class<? extends T>> getClassFor(String fqcn,
 scala.reflect.ClassTag<T> evidence$2)

Obtain a Class[_] object loaded with the right class loader (i.e. the one returned by classLoader).

getObjectFor

public abstract <T> scala.util.Try<T> getObjectFor(String fqcn,
 scala.reflect.ClassTag<T> evidence$4)

Obtain the Scala “object” instance for the given fully-qualified class name, if there is one.