com.netflix.spectator.impl

Class Preconditions

java.lang.Object

com.netflix.spectator.impl.Preconditions

public final class Preconditions
extends Object

Internal convenience methods that help a method or constructor check whether it was invoked correctly.

This class is an internal implementation detail only intended for use within spectator. It is subject to change without notice.

Method Summary

Modifier and Type	Method and Description
static void	checkArg(boolean expression, String errMsg) Ensures the truth of an expression involving the state of the calling instance.
static <T> T	checkNotNull(T obj, String name) Ensures the object reference is not null.
static void	checkState(boolean expression, String errMsg) Ensures the truth of an expression involving the state of the calling instance.

Methods inherited from class java.lang.Object

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

Method Detail

checkNotNull

public static <T> T checkNotNull(T obj,
                                 String name)

Ensures the object reference is not null.

checkArg

public static void checkArg(boolean expression,
                            String errMsg)

Ensures the truth of an expression involving the state of the calling instance.

checkState

public static void checkState(boolean expression,
                              String errMsg)

Ensures the truth of an expression involving the state of the calling instance.