Package 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 becomes stale the resolvers will be called again.

Since:

3.0

Author:

Andy Clement, Sam Brannen

See Also:

• ConstructorExecutor
• MethodResolver

Method Summary

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

Method Details

resolve

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

Within the supplied context, resolve a suitable constructor on the supplied type that can handle the specified arguments.

Returns 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 fully-qualified name of the type upon which to look for the constructor

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

Returns:

a ConstructorExecutor that can invoke the constructor, or null if the constructor cannot be found

Throws:

AccessException