Package de.team33.patterns.enums.pan

Class Values<E extends Enum<E>>

java.lang.Object

de.team33.patterns.enums.pan.Values<E>

Type Parameters:

E - The enum type whose values should be handled.

public final class Values<E extends Enum<E>>
extends Object

A Tool to handle enum values.

Method Summary

Modifier and Type	Method	Description
final Stream<E>	findAll(Predicate<? super E> filter)	Returns a Stream of those values of the underlying enum type that match the given filter.
final Optional<E>	findAny(Predicate<? super E> filter)	Returns an optional value of the associated enum type that matches the given filter or, if no such value exists, Optional.empty().
final E	findAny(Predicate<? super E> filter, E fallback)	Returns a value of the associated enum type that matches the given filter or, if no such value exists, the given fallback.
final Optional<E>	findFirst(Predicate<? super E> filter)	Returns the optional first value of the associated enum type that matches the given filter or, if no such value exists, Optional.empty().
final E	findFirst(Predicate<? super E> filter, E fallback)	Returns the first value of the associated enum type that matches the given filter or, if no such value exists, the given fallback.
final <T> Stream<T>	mapAll(Function<? super E,? extends T> mapping)	Just like stream().map(mapping).
final <T> Stream<T>	mapAll(Predicate<? super E> filter, Function<? super E,? extends T> mapping)	Just like findAll(filter).map(mapping).
final <R> Optional<R>	mapAny(Predicate<? super E> filter, Function<? super E,? extends R> mapping)	Just like findAny(filter).map(mapping).
final <R> Optional<R>	mapFirst(Predicate<? super E> filter, Function<? super E,? extends R> mapping)	Just like findFirst(filter).map(mapping).
static <E extends Enum<E>> Values<E>	of(Class<E> enumClass)	Returns a tool instance to handle the values of the given enum class.
final Stream<E>	stream()	Returns a Stream over all values of the underlying enum type.

Methods inherited from class java.lang.Object

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

Method Details

of

public static <E extends Enum<E>> Values<E> of(Class<E> enumClass)

Returns a tool instance to handle the values of the given enum class.

stream

public final Stream<E> stream()

Returns a Stream over all values of the underlying enum type.

findAll

public final Stream<E> findAll(Predicate<? super E> filter)

Returns a Stream of those values of the underlying enum type that match the given filter.

findAny

public final Optional<E> findAny(Predicate<? super E> filter)

Returns an optional value of the associated enum type that matches the given filter or, if no such value exists, Optional.empty().

findAny

public final E findAny(Predicate<? super E> filter,
 E fallback)

Returns a value of the associated enum type that matches the given filter or, if no such value exists, the given fallback.

findFirst

public final Optional<E> findFirst(Predicate<? super E> filter)

Returns the optional first value of the associated enum type that matches the given filter or, if no such value exists, Optional.empty().

findFirst

public final E findFirst(Predicate<? super E> filter,
 E fallback)

Returns the first value of the associated enum type that matches the given filter or, if no such value exists, the given fallback.

mapAll

public final <T> Stream<T> mapAll(Function<? super E,? extends T> mapping)

Just like stream().map(mapping).

mapAll

public final <T> Stream<T> mapAll(Predicate<? super E> filter,
 Function<? super E,? extends T> mapping)

Just like findAll(filter).map(mapping).

mapAny

public final <R> Optional<R> mapAny(Predicate<? super E> filter,
 Function<? super E,? extends R> mapping)

Just like findAny(filter).map(mapping).

mapFirst

public final <R> Optional<R> mapFirst(Predicate<? super E> filter,
 Function<? super E,? extends R> mapping)

Just like findFirst(filter).map(mapping).