org.grouplens.grapht.solver

Class ProviderBindingFunction

java.lang.Object

org.grouplens.grapht.solver.ProviderBindingFunction

All Implemented Interfaces:

BindingFunction

public class ProviderBindingFunction
extends Object
implements BindingFunction

BindingFunction that enables provider-injection. This function supports just-in-time binding for injection points for Providers, that creates Providers wrapping whatever provided-type is necessary for that injection point.

As an example, Provider<Foo> would have a Provider of Foo injected, and the Foo instances returned by that Provider's get() method would be configured as if the injection point was for Foo.

Author:

GroupLens Research

Constructor Summary

Constructors

Constructor and Description
ProviderBindingFunction()

Method Summary

Modifier and Type	Method and Description
BindingResult	bind(InjectionContext context, DesireChain desires) Find the applicable binding, if any, for a desire in a particular context.

Methods inherited from class java.lang.Object

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

Constructor Detail

ProviderBindingFunction

public ProviderBindingFunction()

Method Detail

bind

public BindingResult bind(InjectionContext context,
                          DesireChain desires)
                   throws ResolutionException

Description copied from interface: BindingFunction

Find the applicable binding, if any, for a desire in a particular context.

Specified by:

bind in interface BindingFunction

Parameters:

context - The context.

desires - The desire.

Returns:

The result of binding desire, or null if there is no binding.

Throws:

ResolutionException - If there is an error (such as ambiguous bindings).