Package com.landawn.abacus.util
Class u.OptionalLong
java.lang.Object
com.landawn.abacus.util.u.OptionalLong
- All Implemented Interfaces:
Immutable
,Comparable<u.OptionalLong>
- Enclosing class:
- u
@Immutable
public static final class u.OptionalLong
extends Object
implements Comparable<u.OptionalLong>, Immutable
The Class OptionalLong.
-
Method Summary
Modifier and TypeMethodDescription__()
boxed()
int
compareTo
(u.OptionalLong optional) static u.OptionalLong
empty()
boolean
<E extends Exception>
u.OptionalLongfilter
(Throwables.LongPredicate<E> predicate) <E extends Exception>
u.OptionalLongflatMap
(Throwables.LongFunction<u.OptionalLong, E> mapper) static u.OptionalLong
from
(OptionalLong op) long
get()
int
hashCode()
<E extends Exception>
u.OptionalLongifPresent
(Throwables.LongConsumer<E> action) <E extends Exception,
E2 extends Exception>
u.OptionalLongifPresentOrElse
(Throwables.LongConsumer<E> action, Throwables.Runnable<E2> emptyAction) If present or else.boolean
isEmpty()
boolean
<E extends Exception>
u.OptionalLongmap
(Throwables.LongUnaryOperator<E> mapper) <E extends Exception>
u.OptionalDoublemapToDouble
(Throwables.ToDoubleFunction<Long, E> mapper) Map to double.<E extends Exception>
u.OptionalIntmapToInt
(Throwables.ToIntFunction<Long, E> mapper) Map to int.<T,
E extends Exception>
u.Optional<T>mapToNonNull
(Throwables.LongFunction<T, E> mapper) <T,
E extends Exception>
u.Nullable<T>mapToObj
(Throwables.LongFunction<T, E> mapper) Map to obj.static u.OptionalLong
of
(long value) static u.OptionalLong
ofNullable
(Long val) <E extends Exception>
u.OptionalLongor
(Throwables.Supplier<u.OptionalLong, E> supplier) long
orElse
(long other) <E extends Exception>
longorElseGet
(Throwables.LongSupplier<E> other) Or else get.long
Or else throw.<X extends Throwable>
longorElseThrow
(Supplier<? extends X> exceptionSupplier) Or else throw.long
long
orZero()
Deprecated.stream()
To immutable list.To immutable set.toList()
toSet()
toString()
-
Method Details
-
empty
- Returns:
-
of
- Parameters:
value
-- Returns:
-
ofNullable
- Parameters:
val
-- Returns:
-
from
- Parameters:
op
-- Returns:
-
get
- Returns:
- Throws:
NoSuchElementException
- the no such element exception
-
isPresent
public boolean isPresent() -
isEmpty
public boolean isEmpty() -
ifPresent
- Type Parameters:
E
-- Parameters:
action
-- Returns:
- Throws:
E
- the e
-
ifPresentOrElse
public <E extends Exception,E2 extends Exception> u.OptionalLong ifPresentOrElse(Throwables.LongConsumer<E> action, Throwables.Runnable<E2> emptyAction) throws E, E2 If present or else.- Type Parameters:
E
-E2
-- Parameters:
action
-emptyAction
-- Returns:
- Throws:
E
- the eE2
- the e2
-
filter
- Type Parameters:
E
-- Parameters:
predicate
-- Returns:
- Throws:
E
- the e
-
map
- Type Parameters:
E
-- Parameters:
mapper
-- Returns:
- Throws:
E
- the e
-
mapToInt
public <E extends Exception> u.OptionalInt mapToInt(Throwables.ToIntFunction<Long, E> mapper) throws EMap to int.- Type Parameters:
E
-- Parameters:
mapper
-- Returns:
- Throws:
E
- the e
-
mapToDouble
public <E extends Exception> u.OptionalDouble mapToDouble(Throwables.ToDoubleFunction<Long, E> mapper) throws EMap to double.- Type Parameters:
E
-- Parameters:
mapper
-- Returns:
- Throws:
E
- the e
-
mapToObj
public <T,E extends Exception> u.Nullable<T> mapToObj(Throwables.LongFunction<T, E> mapper) throws EMap to obj.- Type Parameters:
T
-E
-- Parameters:
mapper
-- Returns:
- Throws:
E
- the e
-
mapToNonNull
public <T,E extends Exception> u.Optional<T> mapToNonNull(Throwables.LongFunction<T, E> mapper) throws E- Throws:
E extends Exception
-
flatMap
public <E extends Exception> u.OptionalLong flatMap(Throwables.LongFunction<u.OptionalLong, E> mapper) throws E- Type Parameters:
E
-- Parameters:
mapper
-- Returns:
- Throws:
E
- the e
-
or
public <E extends Exception> u.OptionalLong or(Throwables.Supplier<u.OptionalLong, E> supplier) throws E- Type Parameters:
E
-- Parameters:
supplier
-- Returns:
- Throws:
E
- the e
-
orZero
Deprecated.useorElseZero()
- Returns:
-
orElseZero
public long orElseZero() -
orElse
public long orElse(long other) - Parameters:
other
-- Returns:
-
orElseGet
Or else get.- Type Parameters:
E
-- Parameters:
other
-- Returns:
- Throws:
E
- the e
-
orElseThrow
Or else throw.- Returns:
- Throws:
NoSuchElementException
- the no such element exception
-
orElseThrow
Or else throw.- Type Parameters:
X
-- Parameters:
exceptionSupplier
-- Returns:
- Throws:
X
- the x
-
stream
- Returns:
-
toList
- Returns:
-
toSet
- Returns:
-
toImmutableList
To immutable list.- Returns:
-
toImmutableSet
To immutable set.- Returns:
-
boxed
- Returns:
-
__
- Returns:
-
compareTo
- Specified by:
compareTo
in interfaceComparable<u.OptionalLong>
- Parameters:
optional
-- Returns:
-
equals
-
hashCode
public int hashCode() -
toString
-
orElseZero()