Package org.jclouds.reflect

Class FunctionalReflection

java.lang.Object

org.jclouds.reflect.FunctionalReflection

@Beta
public final class FunctionalReflection
extends Object

Static utilities relating to functional Java reflection.

Since:

1.6

Constructor Summary

Constructors

Constructor	Description
FunctionalReflection()

Method Summary

Modifier and Type	Method	Description
static <T> T	newProxy(com.google.common.reflect.TypeToken<T> enclosingType, com.google.common.base.Function<Invocation,Object> invocationFunction)	Returns a proxy instance that implements enclosingType by dispatching method invocations to invocationFunction.
static <T> T	newProxy(Class<T> enclosingType, com.google.common.base.Function<Invocation,Object> invocationFunction)

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionalReflection

public FunctionalReflection()

Method Detail

newProxy

public static <T> T newProxy(com.google.common.reflect.TypeToken<T> enclosingType,
                             com.google.common.base.Function<Invocation,Object> invocationFunction)

Returns a proxy instance that implements enclosingType by dispatching method invocations to invocationFunction. The class loader of enclosingType will be used to define the proxy class.

Usage example:

 httpAdapter = new Function<Invocation, Result>() {
    public Result apply(Invocation in) {
       try {
          HttpRequest request = parseRequest(in);
          HttpResponse response = invoke(request);
          return Result.success(parseJson(response));
       } catch (Exception e) {
          return Result.failure(e);
       }
    }
 };
 
 client = FunctionalReflection.newProxy(Client.class, httpAdapter);
 

Parameters:

invocationFunction - returns a result or a top-level exception, or result

Throws:

IllegalArgumentException - if enclosingType does not specify the type of a Java interface

See Also:

AbstractInvocationHandler.invoke(Object, Method, Object[]), Reflection.newProxy(Class, java.lang.reflect.InvocationHandler)

newProxy

public static <T> T newProxy(Class<T> enclosingType,
                             com.google.common.base.Function<Invocation,Object> invocationFunction)