Package com.landawn.abacus.util
Class u.OptionalChar
java.lang.Object
com.landawn.abacus.util.u.OptionalChar
- All Implemented Interfaces:
Immutable
,Comparable<u.OptionalChar>
- Enclosing class:
- u
@Immutable
public static final class u.OptionalChar
extends Object
implements Comparable<u.OptionalChar>, Immutable
The Class OptionalChar.
-
Method Summary
Modifier and TypeMethodDescriptionboxed()
int
compareTo
(u.OptionalChar optional) static u.OptionalChar
empty()
boolean
<E extends Exception>
u.OptionalCharfilter
(Throwables.CharPredicate<E> predicate) <E extends Exception>
u.OptionalCharflatMap
(Throwables.CharFunction<u.OptionalChar, E> mapper) char
get()
int
hashCode()
<E extends Exception>
u.OptionalCharifPresent
(Throwables.CharConsumer<E> action) <E extends Exception,
E2 extends Exception>
u.OptionalCharifPresentOrElse
(Throwables.CharConsumer<E> action, Throwables.Runnable<E2> emptyAction) If present or else.boolean
isEmpty()
boolean
<E extends Exception>
u.OptionalCharmap
(Throwables.CharUnaryOperator<E> mapper) <E extends Exception>
u.OptionalIntmapToInt
(Throwables.ToIntFunction<Character, E> mapper) Map to int.<T,
E extends Exception>
u.Optional<T>mapToNonNull
(Throwables.CharFunction<T, E> mapper) <T,
E extends Exception>
u.Nullable<T>mapToObj
(Throwables.CharFunction<T, E> mapper) Map to obj.static u.OptionalChar
of
(char value) static u.OptionalChar
ofNullable
(Character val) <E extends Exception>
u.OptionalCharor
(Throwables.Supplier<u.OptionalChar, E> supplier) char
orElse
(char other) <E extends Exception>
charorElseGet
(Throwables.CharSupplier<E> other) Or else get.char
Or else throw.<X extends Throwable>
charorElseThrow
(Supplier<? extends X> exceptionSupplier) Or else throw.char
char
orZero()
Deprecated.stream()
To immutable list.To immutable set.toList()
toSet()
toString()
-
Method Details
-
empty
- Returns:
-
of
- Parameters:
value
-- Returns:
-
ofNullable
- Parameters:
val
-- 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.OptionalChar ifPresentOrElse(Throwables.CharConsumer<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<Character, E> mapper) throws EMap to int.- Type Parameters:
E
-- Parameters:
mapper
-- Returns:
- Throws:
E
- the e
-
mapToObj
public <T,E extends Exception> u.Nullable<T> mapToObj(Throwables.CharFunction<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.CharFunction<T, E> mapper) throws E- Throws:
E extends Exception
-
flatMap
public <E extends Exception> u.OptionalChar flatMap(Throwables.CharFunction<u.OptionalChar, E> mapper) throws E- Type Parameters:
E
-- Parameters:
mapper
-- Returns:
- Throws:
E
- the e
-
or
public <E extends Exception> u.OptionalChar or(Throwables.Supplier<u.OptionalChar, E> supplier) throws E- Type Parameters:
E
-- Parameters:
supplier
-- Returns:
- Throws:
E
- the e
-
orZero
Deprecated.useorElseZero()
- Returns:
-
orElseZero
public char orElseZero() -
orElse
public char orElse(char 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:
-
compareTo
- Specified by:
compareTo
in interfaceComparable<u.OptionalChar>
- Parameters:
optional
-- Returns:
-
equals
-
hashCode
public int hashCode() -
toString
-
orElseZero()