org.springframework.expression

Interface ConstructorResolver

All Known Implementing Classes:

ReflectiveConstructorResolver

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ConstructorResolver

A constructor resolver attempts to locate a constructor and returns a ConstructorExecutor that can be used to invoke that constructor. The ConstructorExecutor will be cached but if it 'goes stale' the resolvers will be called again.

Since:

3.0

Author:

Andy Clement

Method Summary

Modifier and Type	Method and Description
ConstructorExecutor	resolve(EvaluationContext context, String typeName, List<TypeDescriptor> argumentTypes) Within the supplied context determine a suitable constructor on the supplied type that can handle the specified arguments.

Method Detail

resolve

@Nullable
ConstructorExecutor resolve(EvaluationContext context,
                                      String typeName,
                                      List<TypeDescriptor> argumentTypes)
                               throws AccessException

Within the supplied context determine a suitable constructor on the supplied type that can handle the specified arguments. Return a ConstructorExecutor that can be used to invoke that constructor (or null if no constructor could be found).

Parameters:

context - the current evaluation context

typeName - the type upon which to look for the constructor

argumentTypes - the arguments that the constructor must be able to handle

Returns:

a ConstructorExecutor that can invoke the constructor, or null if non found

Throws:

AccessException