org.beryx.textio

Interface InputReader.ValueChecker<T>

Enclosing class:

InputReader<T,B extends InputReader<T,B>>

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 static interface InputReader.ValueChecker<T>

Functional interface for checking value constraints

Method Summary

Modifier and Type	Method and Description
List<String>	getErrorMessages(T val, String itemName) Returns the list of error messages due to constraint violations caused by val

Method Detail

getErrorMessages

List<String> getErrorMessages(T val,
                              String itemName)

Returns the list of error messages due to constraint violations caused by val

Parameters:

val - the value for which constraint violations are checked

itemName - the name of the item corresponding to this value. May be null.

Returns:

- the list of error messages or null if no error has been detected.