Package org.zalando.fahrschein

Class Preconditions

java.lang.Object

org.zalando.fahrschein.Preconditions

public final class Preconditions
extends Object

Method Summary

Modifier and Type	Method	Description
static void	checkArgument(boolean expression)
static void	checkArgument(boolean expression, Object errorMessage)
static void	checkArgument(boolean expression, String errorMessageTemplate, Object... errorMessageArgs)
static <T> T	checkNotNull(T reference)
static <T> T	checkNotNull(T reference, Object errorMessage)
static <T> T	checkNotNull(T reference, String errorMessageTemplate, Object... errorMessageArgs)
static void	checkState(boolean expression)
static void	checkState(boolean expression, Object errorMessage)
static void	checkState(boolean expression, String errorMessageTemplate, Object... errorMessageArgs)

Methods inherited from class java.lang.Object

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

Method Details

checkArgument

public static void checkArgument(boolean expression)

checkArgument

public static void checkArgument(boolean expression,
 Object errorMessage)

checkArgument

public static void checkArgument(boolean expression,
 String errorMessageTemplate,
 Object... errorMessageArgs)

checkState

public static void checkState(boolean expression)

checkState

public static void checkState(boolean expression,
 Object errorMessage)

checkState

public static void checkState(boolean expression,
 String errorMessageTemplate,
 Object... errorMessageArgs)

checkNotNull

public static <T> T checkNotNull(@Nullable
 T reference)

checkNotNull

public static <T> T checkNotNull(@Nullable
 T reference,
 Object errorMessage)

checkNotNull

public static <T> T checkNotNull(@Nullable
 T reference,
 String errorMessageTemplate,
 Object... errorMessageArgs)