de.flapdoodle.checks

Class Preconditions

java.lang.Object

de.flapdoodle.checks.Preconditions

public abstract class Preconditions
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Preconditions.LazyArgument

Method Summary

Modifier and Type	Method and Description
protected static Object	asObject(Object value)
static void	checkArgument(boolean expression, String errorMessage, Object... args)
static <T> T	checkNotNull(T reference, String errorMessage, Object... args)
static <T> Optional<T>	checkPresent(Optional<T> reference, String errorMessage, Object... args)
protected static String	format(String message, Object... args)
static Preconditions.LazyArgument	lazy(Supplier<?> supplier)

Methods inherited from class java.lang.Object

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

Method Detail

checkArgument

public static void checkArgument(boolean expression,
                                 String errorMessage,
                                 Object... args)

checkNotNull

public static <T> T checkNotNull(T reference,
                                 String errorMessage,
                                 Object... args)

checkPresent

public static <T> Optional<T> checkPresent(Optional<T> reference,
                                           String errorMessage,
                                           Object... args)

format

protected static String format(String message,
                               Object... args)

asObject

protected static Object asObject(Object value)

lazy

public static Preconditions.LazyArgument lazy(Supplier<?> supplier)