Package io.karma.kommons.function

Class Functions

java.lang.Object

io.karma.kommons.function.Functions

@API(status=STABLE)
public final class Functions
extends Object

Since:

10/04/2022

Method Summary

Modifier and Type	Method	Description
static <T> Predicate<T>	alwaysFalse()
static <T, U> BiPredicate<T,U>	alwaysFalseBi()
static <T> Predicate<T>	alwaysTrue()
static <T, U> BiPredicate<T,U>	alwaysTrueBi()
static <I, R> Function<I,R>	castingIdentity()
static <T, U> BiConsumer<T,U>	emptyBiConsumer()
static <T> Consumer<T>	emptyConsumer()
static <T, U, V> TriConsumer<T,U,V>	emptyTriConsumer()
static <T> Predicate<T>	ifNonNull()
static <T> Predicate<T>	ifNull()
static <T, U, R> BiFunction<T,U,R>	nullBiFunction()
static <T, R> Function<T,R>	nullFunction()
static <T, U, V, R> TriFunction<T,U,V,R>	nullTriFunction()
static <T, U, X extends Throwable> BiConsumer<T,U>	safeWrap(XBiConsumer<T,U,X> consumer, @Nullable Consumer<X> handler)
static <T, U, R, X extends Throwable> BiFunction<T,U,R>	safeWrap(XBiFunction<T,U,R,X> function, @Nullable Consumer<X> handler)
static <T, X extends Throwable> Consumer<T>	safeWrap(XConsumer<T,X> consumer, @Nullable Consumer<X> handler)
static <T, R, X extends Throwable> Function<T,R>	safeWrap(XFunction<T,R,X> function, @Nullable Consumer<X> handler)
static Runnable	safeWrap(XRunnable<? extends Throwable> runnable)
static <X extends Throwable> Runnable	safeWrap(XRunnable<X> runnable, @Nullable Consumer<X> handler)
static <T> Supplier<T>	safeWrap(XSupplier<T,?> supplier)
static <T, X extends Throwable> Supplier<T>	safeWrap(XSupplier<T,X> supplier, @Nullable Consumer<X> handler)
static <T, U, V, X extends Throwable> TriConsumer<T,U,V>	safeWrap(XTriConsumer<T,U,V,X> consumer, @Nullable Consumer<X> handler)
static <T, U, V, R, X extends Throwable> TriFunction<T,U,V,R>	safeWrap(XTriFunction<T,U,V,R,X> function, @Nullable Consumer<X> handler)
static void	tryDo(@Nullable XRunnable<? extends Throwable> runnable)
static <X extends Throwable> void	tryDo(@Nullable XRunnable<X> runnable, @Nullable Consumer<X> handler)
static <R> R	tryGet(@Nullable XSupplier<R,?> supplier)
static <R, X extends Throwable> R	tryGet(@Nullable XSupplier<R,X> supplier, @Nullable Consumer<X> handler)
static <T extends AutoCloseable> void	use(XSupplier<? extends T,? extends Throwable> factory, XConsumer<T,? extends Throwable> useCallback)
static <T extends AutoCloseable> void	use(XSupplier<? extends T,? extends Throwable> factory, XConsumer<T,? extends Throwable> useCallback, @Nullable Consumer<Throwable> errorCallback)
static <T extends AutoCloseable, R> R	use(XSupplier<? extends T,? extends Throwable> factory, XFunction<T,R,? extends Throwable> useFunction, @Nullable Consumer<Throwable> errorCallback)
static <T extends AutoCloseable, R> R	use(XSupplier<? extends T,? extends Throwable> factory, XFunction<T,R,Throwable> useFunction)

Methods inherited from class java.lang.Object

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

Method Details

nullFunction

public static <T,
R> Function<T,R> nullFunction()

nullBiFunction

public static <T,
U,
R> BiFunction<T,U,R> nullBiFunction()

nullTriFunction

public static <T,
U,
V,
R> TriFunction<T,U,V,R> nullTriFunction()

emptyConsumer

public static <T> Consumer<T> emptyConsumer()

emptyBiConsumer

public static <T,
U> BiConsumer<T,U> emptyBiConsumer()

emptyTriConsumer

public static <T,
U,
V> TriConsumer<T,U,V> emptyTriConsumer()

alwaysTrue

public static <T> Predicate<T> alwaysTrue()

alwaysTrueBi

public static <T,
U> BiPredicate<T,U> alwaysTrueBi()

alwaysFalse

public static <T> Predicate<T> alwaysFalse()

alwaysFalseBi

public static <T,
U> BiPredicate<T,U> alwaysFalseBi()

ifNull

public static <T> Predicate<T> ifNull()

ifNonNull

public static <T> Predicate<T> ifNonNull()

castingIdentity

public static <I,
R> Function<I,R> castingIdentity()

safeWrap

public static <X extends Throwable> Runnable safeWrap(XRunnable<X> runnable,
 @Nullable
 @Nullable Consumer<X> handler)

safeWrap

public static Runnable safeWrap(XRunnable<? extends Throwable> runnable)

safeWrap

public static <T,
X extends Throwable> Consumer<T> safeWrap(XConsumer<T,X> consumer,
 @Nullable
 @Nullable Consumer<X> handler)

safeWrap

public static <T,
U,
X extends Throwable>
BiConsumer<T,U> safeWrap(XBiConsumer<T,U,X> consumer,
 @Nullable
 @Nullable Consumer<X> handler)

safeWrap

public static <T,
U,
V,
X extends Throwable>
TriConsumer<T,U,V> safeWrap(XTriConsumer<T,U,V,X> consumer,
 @Nullable
 @Nullable Consumer<X> handler)

safeWrap

public static <T,
R,
X extends Throwable>
Function<T,R> safeWrap(XFunction<T,R,X> function,
 @Nullable
 @Nullable Consumer<X> handler)

safeWrap

public static <T,
U,
R,
X extends Throwable>
BiFunction<T,U,R> safeWrap(XBiFunction<T,U,R,X> function,
 @Nullable
 @Nullable Consumer<X> handler)

safeWrap

public static <T,
U,
V,
R,
X extends Throwable>
TriFunction<T,U,V,R> safeWrap(XTriFunction<T,U,V,R,X> function,
 @Nullable
 @Nullable Consumer<X> handler)

safeWrap

public static <T,
X extends Throwable> Supplier<T> safeWrap(XSupplier<T,X> supplier,
 @Nullable
 @Nullable Consumer<X> handler)

safeWrap

public static <T> Supplier<T> safeWrap(XSupplier<T,?> supplier)

tryDo

public static <X extends Throwable> void tryDo(@Nullable
 @Nullable XRunnable<X> runnable,
 @Nullable
 @Nullable Consumer<X> handler)

tryDo

public static void tryDo(@Nullable
 @Nullable XRunnable<? extends Throwable> runnable)

tryGet

@Nullable
public static <R,
X extends Throwable> R tryGet(@Nullable
 @Nullable XSupplier<R,X> supplier,
 @Nullable
 @Nullable Consumer<X> handler)

tryGet

@Nullable
public static <R> R tryGet(@Nullable
 @Nullable XSupplier<R,?> supplier)

use

public static <T extends AutoCloseable> void use(XSupplier<? extends T,? extends Throwable> factory,
 XConsumer<T,? extends Throwable> useCallback,
 @Nullable
 @Nullable Consumer<Throwable> errorCallback)

use

public static <T extends AutoCloseable> void use(XSupplier<? extends T,? extends Throwable> factory,
 XConsumer<T,? extends Throwable> useCallback)

use

@Nullable
public static <T extends AutoCloseable,
R> R use(XSupplier<? extends T,? extends Throwable> factory,
 XFunction<T,R,? extends Throwable> useFunction,
 @Nullable
 @Nullable Consumer<Throwable> errorCallback)

use

@Nullable
public static <T extends AutoCloseable,
R> R use(XSupplier<? extends T,? extends Throwable> factory,
 XFunction<T,R,Throwable> useFunction)