jdk.util.function.Function
Represents a function that accepts one argument and produces a result.
This is a functional interface whose functional method is apply(Object).
Represents a function that accepts one argument and produces a result. This is a functional interface whose functional method is apply(Object).
*identityclj
(*identity)Returns a function that always returns its input argument.
returns: a function that always returns its input argument - <T> java.util.function.Function<T,T>
Returns a function that always returns its input argument. returns: a function that always returns its input argument - `<T> java.util.function.Function<T,T>`
and-thenclj
(and-then this after)Returns a composed function that first applies this function to its input, and then applies the after function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.
after - the function to apply after this function is applied - java.util.function.Function
returns: a composed function that first applies this function and then
applies the after function - default <V> java.util.function.Function<T,V>
throws: java.lang.NullPointerException - if after is null
Returns a composed function that first applies this function to its input, and then applies the after function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function. after - the function to apply after this function is applied - `java.util.function.Function` returns: a composed function that first applies this function and then applies the after function - `default <V> java.util.function.Function<T,V>` throws: java.lang.NullPointerException - if after is null
applyclj
(apply this t)Applies this function to the given argument.
t - the function argument - T
returns: the function result - R
Applies this function to the given argument. t - the function argument - `T` returns: the function result - `R`
composeclj
(compose this before)Returns a composed function that first applies the before 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.
before - the function to apply before this function is applied - java.util.function.Function
returns: a composed function that first applies the before
function and then applies this function - default <V> java.util.function.Function<V,R>
throws: java.lang.NullPointerException - if before is null
Returns a composed function that first applies the before 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. before - the function to apply before this function is applied - `java.util.function.Function` returns: a composed function that first applies the before function and then applies this function - `default <V> java.util.function.Function<V,R>` throws: java.lang.NullPointerException - if before is null
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