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 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 Detail

      • resolve

        @Nullable
        ConstructorExecutor resolve(EvaluationContext context,
                                              java.lang.String typeName,
                                              java.util.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