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- Type Parameters:
T
- the type of the input to the functionR
- the type of the result of the function
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface UncheckedFunction<T,R>
Represents a function that accepts one argument and produces a result.The operation can throw
Exceptions
.
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method Description default <V> UncheckedFunction<T,V>
andThen(UncheckedFunction<? super R,? extends V> after)
Returns a composed function that first applies this function to its input, and then applies theafter
function to the result.R
apply(T t)
Applies this function to the given argument.default <V> UncheckedFunction<V,R>
compose(UncheckedFunction<? super V,? extends T> before)
Returns a composed function that first applies thebefore
function to its input, and then applies this function to the result.static <T,R>
UncheckedFunction<T,R>from(java.util.function.Function<T,R> function)
Creates aUncheckedBiConsumer
from an existingFunction
default java.util.function.Function<T,R>
toFunction()
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Method Detail
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from
static <T,R> UncheckedFunction<T,R> from(java.util.function.Function<T,R> function)
Creates aUncheckedBiConsumer
from an existingFunction
- Type Parameters:
T
- the type of the input to the functionR
- the type of the result of the function- Parameters:
function
- the function- Returns:
- the created
UncheckedBiConsumer
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apply
R apply(T t) throws java.lang.Exception
Applies this function to the given argument.- Parameters:
t
- the function argument- Returns:
- the function result
- Throws:
java.lang.Exception
- if anything wrong happen
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toFunction
default java.util.function.Function<T,R> toFunction()
- Returns:
- a
Function
executing thisUncheckedFunction
. If the operation throws an exception, the exception is rethrown, wrapped in aRuntimeException
if needed.
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compose
default <V> UncheckedFunction<V,R> compose(UncheckedFunction<? super V,? extends T> before)
Returns a composed function that first applies thebefore
function to its input, and then applies this function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.- Type Parameters:
V
- the type of input to thebefore
function, and to the composed function- Parameters:
before
- the function to apply before this function is applied- Returns:
- a composed function that first applies the
before
function and then applies this function - Throws:
java.lang.NullPointerException
- if before is null- See Also:
andThen(UncheckedFunction)
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andThen
default <V> UncheckedFunction<T,V> andThen(UncheckedFunction<? super R,? extends V> after)
Returns a composed function that first applies this function to its input, and then applies theafter
function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.- Type Parameters:
V
- the type of output of theafter
function, and of the composed function- Parameters:
after
- the function to apply after this function is applied- Returns:
- a composed function that first applies this function and then
applies the
after
function - Throws:
java.lang.NullPointerException
- if after is null- See Also:
compose(UncheckedFunction)
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