de.skuzzle.inject.async.util

Class InjectedMethodInvocation

java.lang.Object

de.skuzzle.inject.async.util.InjectedMethodInvocation

public class InjectedMethodInvocation
extends Object

Allows to invoke any method without explicitly providing its arguments. Arguments are looked up by creating Key objects from the method's parameter types and then passing them to an Injector to retrieve the actual argument.

A BindingAnnotation may optionally be present on an argument type to refine the Key that is created to look up the parameter's actual value.

Author:

Simon Taddiken

Method Summary

Modifier and Type	Method and Description
static InjectedMethodInvocation	forMethod(Method method, Object self, com.google.inject.Injector injector) Creates a InjectedMethodInvocation object that is able to invoke the provided method.
static InjectedMethodInvocation	forStatic(Method method, com.google.inject.Injector injector) Creates an InjectedMethodInvocation object that is able to invoke the provided static method.
Object	proceed() Actually executes the method.

Methods inherited from class java.lang.Object

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

Method Detail

forStatic

public static InjectedMethodInvocation forStatic(Method method,
                                                 com.google.inject.Injector injector)

Creates an InjectedMethodInvocation object that is able to invoke the provided static method. The actual parameters for the invocation will be looked up using the given injector.

You can call proceed() to invoke the method.

Parameters:

method - A static method.

injector - The injector which is queried for actual method arguments.

Returns:

The MethodInvocation.

forMethod

public static InjectedMethodInvocation forMethod(Method method,
                                                 Object self,
                                                 com.google.inject.Injector injector)

Creates a InjectedMethodInvocation object that is able to invoke the provided method. The actual parameters for the invocation will be looked up using the given injector. This method supports static methods by leaving the self parameter null.

You can call proceed() to invoke the method.

Parameters:

method - A method.

self - The object on which the method will be called. May be null for invoking static methods.

injector - The injector which is queried for actual method arguments.

Returns:

The MethodInvocation.

proceed

public Object proceed()
               throws Throwable

Actually executes the method.

Returns:

The result of the method invocation.

Throws:

Throwable - If method invocation failed or the method itself threw an exception.