org.dalesbred.internal.utils

Class OptionalUtils

java.lang.Object

org.dalesbred.internal.utils.OptionalUtils

public final class OptionalUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static @NotNull OptionalDouble	optionalDoubleOfNullable(@Nullable Double v)
static @NotNull OptionalInt	optionalIntOfNullable(@Nullable Integer v)
static @NotNull OptionalLong	optionalLongOfNullable(@Nullable Long v)
static @Nullable Object	unwrapOptionalAsNull(@Nullable Object o) If object is an empty optional-type, return null.

Methods inherited from class java.lang.Object

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

Method Detail

unwrapOptionalAsNull

@Nullable
public static @Nullable Object unwrapOptionalAsNull(@Nullable
                                                              @Nullable Object o)

If object is an empty optional-type, return null. If object is non-empty optional-type, return its value. Otherwise return object as it is.

optionalIntOfNullable

@NotNull
public static @NotNull OptionalInt optionalIntOfNullable(@Nullable
                                                                  @Nullable Integer v)

optionalLongOfNullable

@NotNull
public static @NotNull OptionalLong optionalLongOfNullable(@Nullable
                                                                    @Nullable Long v)

optionalDoubleOfNullable

@NotNull
public static @NotNull OptionalDouble optionalDoubleOfNullable(@Nullable
                                                                        @Nullable Double v)