com.facebook.buck.core.util

Class Optionals

java.lang.Object

com.facebook.buck.core.util.Optionals

public class Optionals
extends Object

Method Summary

Modifier and Type	Method and Description
static <T> void	addIfPresent(Optional<T> optional, com.google.common.collect.ImmutableCollection.Builder<T> collection)
static <T,U> Optional<U>	bind(Optional<? extends T> optional, java.util.function.Function<? super T,Optional<U>> f)
static <T extends Comparable<T>> int	compare(Optional<T> first, Optional<T> second)
static Optional<Boolean>	ofBoolean(boolean b)
static <K,T> void	putIfPresent(Optional<T> optional, K key, com.google.common.collect.ImmutableMap.Builder<K,T> collection)
static <T> T	require(Optional<T> optional)

Methods inherited from class java.lang.Object

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

Method Detail

addIfPresent

public static <T> void addIfPresent(Optional<T> optional,
                                    com.google.common.collect.ImmutableCollection.Builder<T> collection)

putIfPresent

public static <K,T> void putIfPresent(Optional<T> optional,
                                      K key,
                                      com.google.common.collect.ImmutableMap.Builder<K,T> collection)

bind

public static <T,U> Optional<U> bind(Optional<? extends T> optional,
                                     java.util.function.Function<? super T,Optional<U>> f)

compare

public static <T extends Comparable<T>> int compare(Optional<T> first,
                                                    Optional<T> second)

require

public static <T> T require(Optional<T> optional)

ofBoolean

public static Optional<Boolean> ofBoolean(boolean b)