Uses of Class
com.google.mu.util.BiOptional

Packages that use BiOptional

Package	Description
com.google.mu.util	StringFormat, Substring, Optionals and more...
com.google.mu.util.stream	BiStream, BiCollector, MoreStreams, MoreCollectors etc.

Uses of BiOptional in com.google.mu.util

Methods in com.google.mu.util that return BiOptional

Modifier and Type	Method	Description
static <A,B> BiOptional<A,B>	Optionals.both(Optional<? extends A> a, Optional<? extends B> b)	If a and b are present, returns a BiOptional instance containing them; otherwise returns an empty BiOptional.
static <A,B> BiOptional<A,B>	BiOptional.empty()	Returns an empty BiOptional instance.
abstract BiOptional<A,B>	BiOptional.filter(BiPredicate<? super A, ? super B> predicate)	If a pair of values is present and matches predicate, return this BiOptional instance.
default BiOptional<A,B>	Both.filter(BiPredicate<? super A, ? super B> condition)	If the pair matches() condition, returns a BiOptional containing the pair, or else returns empty.
static <T,A,B> BiOptional<A,B>	BiOptional.flatMap(Optional<T> optional, Function<? super T, ? extends BiOptional<? extends A, ? extends B>> mapper)	Maps the value contained in optional to a BiOptional using mapper, or else returns empty.
static <T> BiOptional<T,T>	BiOptional.from(Optional<T> optional)	If optional is present with value v, adapts it to BiOptional containing values (v, v).
static <A,B> BiOptional<A,B>	Optionals.inOrder(Optional<? extends A> step1, Function<? super A, ? extends Optional<? extends B>> step2)	Similar to Optionals.both(java.util.Optional<? extends A>, java.util.Optional<? extends B>), but only evaluates step2 if step1 is present.
static <A,B> BiOptional<A,B>	Optionals.inOrder(Optional<? extends A> step1, Supplier<? extends Optional<? extends B>> step2)	Similar to Optionals.both(java.util.Optional<? extends A>, java.util.Optional<? extends B>), but only evaluates step2 if step1 is present.
abstract <A2,B2> BiOptional<A2,B2>	BiOptional.map(BiFunction<? super A, ? super B, ? extends A2> aMapper, BiFunction<? super A, ? super B, ? extends B2> bMapper)	If a pair of values is present, apply aMapper and bMapper to them, and if both results are non-null, return a new BiOptional instance containing the results.
abstract <A2,B2> BiOptional<A2,B2>	BiOptional.map(Function<? super A, ? extends A2> aMapper, Function<? super B, ? extends B2> bMapper)	If a pair of values is present, apply aMapper and bMapper to each respectively, and if both results are non-null, return a new BiOptional instance containing the results.
static <A,B> BiOptional<A,B>	BiOptional.of(A a, B b)	Returns a BiOptional containing the pair (a, b).
abstract BiOptional<A,B>	BiOptional.or(Supplier<? extends BiOptional<? extends A, ? extends B>> alternative)	If a pair of values are present, return this BiOptional instance.
abstract BiOptional<A,B>	BiOptional.peek(BiConsumer<? super A, ? super B> consumer)	Invokes consumer with the pair if present and returns this object as is.
BiOptional<A,B>	BiOptional.skipIf(BiPredicate<? super A, ? super B> predicate)	If a pair of values is present and matches predicate, the pair is skipped (returns empty).
default BiOptional<A,B>	Both.skipIf(BiPredicate<? super A, ? super B> predicate)	If the pair matches predicate, it's skipped (returns empty).
final BiOptional<String,String>	Substring.Pattern.split(CharSequence string)	Splits string into two parts that are separated by this separator pattern.
final BiOptional<String,String>	Substring.Pattern.splitThenTrim(CharSequence string)	Splits string into two parts that are separated by this separator pattern, with leading and trailing whitespaces trimmed.

Methods in com.google.mu.util with parameters of type BiOptional

Modifier and Type	Method	Description
static <A, B, E extends Throwable> Premise	Optionals.ifPresent(BiOptional<A,B> optional, CheckedBiConsumer<? super A, ? super B, E> consumer)	Runs action if the pair is present.

Method parameters in com.google.mu.util with type arguments of type BiOptional

Modifier and Type	Method	Description
static <T,A,B> BiOptional<A,B>	BiOptional.flatMap(Optional<T> optional, Function<? super T, ? extends BiOptional<? extends A, ? extends B>> mapper)	Maps the value contained in optional to a BiOptional using mapper, or else returns empty.
abstract BiOptional<A,B>	BiOptional.or(Supplier<? extends BiOptional<? extends A, ? extends B>> alternative)	If a pair of values are present, return this BiOptional instance.

Uses of BiOptional in com.google.mu.util.stream

Methods in com.google.mu.util.stream that return BiOptional

Modifier and Type	Method	Description
final BiOptional<K,V>	BiStream.findAny()	Returns any pair from this stream, or BiOptional.empty() if the stream is empty.
final BiOptional<K,V>	BiStream.findFirst()	Returns the first pair from this stream, or BiOptional.empty() if the stream is empty.

Methods in com.google.mu.util.stream that return types with arguments of type BiOptional

Modifier and Type	Method	Description
static <K,V> BiCollector<K, V, BiOptional<K,V>>	BiCollectors.maxBy(Comparator<? super K> keyComparator, Comparator<? super V> valueComparator)	Returns a BiCollector that finds the maximum pair according to keyComparator and then valueComparator for equal keys.
static <K,V> BiCollector<K, V, BiOptional<K,V>>	BiCollectors.maxByKey(Comparator<? super K> comparator)	Returns a BiCollector that finds the pair with the maximum key according to comparator.
static <K,V> BiCollector<K, V, BiOptional<K,V>>	BiCollectors.maxByValue(Comparator<? super V> comparator)	Returns a BiCollector that finds the pair with the maximum value according to comparator.
static <K,V> BiCollector<K, V, BiOptional<K,V>>	BiCollectors.minBy(Comparator<? super K> keyComparator, Comparator<? super V> valueComparator)	Returns a BiCollector that finds the minimum pair according to keyComparator and then valueComparator for equal keys.
static <K,V> BiCollector<K, V, BiOptional<K,V>>	BiCollectors.minByKey(Comparator<? super K> comparator)	Returns a BiCollector that finds the pair with the minimum key according to comparator.
static <K,V> BiCollector<K, V, BiOptional<K,V>>	BiCollectors.minByValue(Comparator<? super V> comparator)	Returns a BiCollector that finds the pair with the minimum value according to comparator.
static <T> Collector<T, ?, BiOptional<T,T>>	MoreCollectors.minMax(Comparator<? super T> comparator)	Returns a collector that collects the minimum and maximum elements from the input elements.

Method parameters in com.google.mu.util.stream with type arguments of type BiOptional

Modifier and Type	Method	Description
final <K2,V2> BiStream<K2,V2>	BiStream.mapIfPresent(BiFunction<? super K, ? super V, ? extends BiOptional<? extends K2, ? extends V2>> mapper)	Returns a BiStream consisting of the results of applying mapper function to the pairs in this BiStream.