com.google.cloud.spanner.r2dbc.util

Class Assert

java.lang.Object

com.google.cloud.spanner.r2dbc.util.Assert

public class Assert
extends Object

Lightweight assertion support.

Method Summary

Modifier and Type	Method and Description
static com.google.protobuf.ByteString	requireNonEmpty(com.google.protobuf.ByteString s, String message) Checks that a specified object reference is not null or an empty string, and throws a customized IllegalArgumentException if it is.
static String	requireNonEmpty(String s, String message) Checks that a specified object reference is not null or an empty string, and throws a customized IllegalArgumentException if it is.
static <T> T	requireNonNull(T t, String message) Checks that a specified object reference is not null and throws a customized IllegalArgumentException if it is.

Methods inherited from class java.lang.Object

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

Method Detail

requireNonNull

public static <T> T requireNonNull(@Nullable
                                   T t,
                                   String message)

Checks that a specified object reference is not null and throws a customized IllegalArgumentException if it is.

Type Parameters:

T - the type of object reference

Parameters:

t - the object reference to check for nullity

message - informative message to be used in the event that an IllegalArgumentException is thrown

Returns:

the original object t

Throws:

IllegalArgumentException - if o is null

requireNonEmpty

public static com.google.protobuf.ByteString requireNonEmpty(@Nullable
                                                             com.google.protobuf.ByteString s,
                                                             String message)

Checks that a specified object reference is not null or an empty string, and throws a customized IllegalArgumentException if it is.

Parameters:

s - string to check

message - informative message to be used in the event that an IllegalArgumentException is thrown

Returns:

the original string s

Throws:

IllegalArgumentException - if o is null

requireNonEmpty

public static String requireNonEmpty(@Nullable
                                     String s,
                                     String message)

Checks that a specified object reference is not null or an empty string, and throws a customized IllegalArgumentException if it is.

Parameters:

s - string to check

message - informative message to be used in the event that an IllegalArgumentException is thrown

Returns:

the original string s

Throws:

IllegalArgumentException - if o is null