Package com.github.martincooper.datatable

Class Guard

java.lang.Object

com.github.martincooper.datatable.Guard

public class Guard
extends Object

Guard class. Used to validate class arguments. Created by Martin Cooper on 13/07/2017.

Constructor Summary

Constructors

Constructor	Description
Guard()

Method Summary

Modifier and Type	Method	Description
static <T> void	itemsNotNull(Iterable<T> argument, String name)	Asserts the argument, and none of it's iterable items, is null.
static <T> void	itemsNotNull(T[] argument, String name)	Asserts the argument, and none of it's items, is null.
static void	notNull(Object argument, String name)	Asserts the value is not null.
static <T> io.vavr.control.Try<T>	tryNotNull(T argument, String name)	Asserts the argument is not null.

Methods inherited from class java.lang.Object

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

Constructor Details

Guard

public Guard()

Method Details

notNull

public static void notNull(Object argument,
 String name)

Asserts the value is not null. Throws an IllegalArgumentException if it is.

Parameters:

argument - The argument to check.

name - The name of the argument.

itemsNotNull

public static <T> void itemsNotNull(Iterable<T> argument,
 String name)

Asserts the argument, and none of it's iterable items, is null. Throws an IllegalArgumentException if it is.

Type Parameters:

T - The argument type.

Parameters:

argument - The argument to check.

name - The name of the argument.

itemsNotNull

public static <T> void itemsNotNull(T[] argument,
 String name)

Asserts the argument, and none of it's items, is null. Throws an IllegalArgumentException if it is.

Type Parameters:

T - The argument type.

Parameters:

argument - The argument to check.

name - The name of the argument.

tryNotNull

public static <T> io.vavr.control.Try<T> tryNotNull(T argument,
 String name)

Asserts the argument is not null. Returns in a Try.

Type Parameters:

T - The argument type.

Parameters:

argument - The argument to check.

name - The name of the argument.

Returns:

Returns a Try testing the argument being null.