Example usage for java.util.function DoubleFunction apply

Introduction

In this page you can find the example usage for java.util.function DoubleFunction apply.

Prototype

R apply(double value);

Source Link

Document

Applies this function to the given argument.

Usage

From source file:at.gridtec.lambda4j.function.bi.obj.ObjShortFunction.java

/**
 * Returns a composed {@link BiDoubleFunction} that first applies the {@code before} functions to its input, and
 * then applies this function to the result. If evaluation of either operation throws an exception, it is relayed to
 * the caller of the composed operation. This method is just convenience, to provide the ability to execute an
 * operation which accepts {@code double} input, before this primitive function is executed.
 *
 * @param before1 The first function to apply before this function is applied
 * @param before2 The second function to apply before this function is applied
 * @return A composed {@code BiDoubleFunction} that first applies the {@code before} functions to its input, and
 * then applies this function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
 * double}./*from www  .  j a v a  2 s .  co  m*/
 */
@Nonnull
default BiDoubleFunction<R> composeFromDouble(@Nonnull final DoubleFunction<? extends T> before1,
        @Nonnull final DoubleToShortFunction before2) {
    Objects.requireNonNull(before1);
    Objects.requireNonNull(before2);
    return (value1, value2) -> apply(before1.apply(value1), before2.applyAsShort(value2));
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjDoubleToDoubleFunction.java

/**
 * Returns a composed {@link ObjDoubleFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this function is applied
 * @return A composed {@code ObjDoubleFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 *//* w  ww . j av a  2s . c o m*/
@Nonnull
default <S> ObjDoubleFunction<T, S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (t, value) -> after.apply(applyAsDouble(t, value));
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjBooleanToDoubleFunction.java

/**
 * Returns a composed {@link ObjBooleanFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this function is applied
 * @return A composed {@code ObjBooleanFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 *///  w  ww  .  ja va2s. c om
@Nonnull
default <S> ObjBooleanFunction<T, S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (t, value) -> after.apply(applyAsDouble(t, value));
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjByteToDoubleFunction.java

/**
 * Returns a composed {@link ObjByteFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this function is applied
 * @return A composed {@code ObjByteFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 *//* w ww .j a v a2s . c o m*/
@Nonnull
default <S> ObjByteFunction<T, S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (t, value) -> after.apply(applyAsDouble(t, value));
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjCharToDoubleFunction.java

/**
 * Returns a composed {@link ObjCharFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this function is applied
 * @return A composed {@code ObjCharFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 *///from  w w w  .  ja  v a  2 s . c o m
@Nonnull
default <S> ObjCharFunction<T, S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (t, value) -> after.apply(applyAsDouble(t, value));
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjFloatToDoubleFunction.java

/**
 * Returns a composed {@link ObjFloatFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this function is applied
 * @return A composed {@code ObjFloatFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 *///ww w .j a  v a  2s  . c o  m
@Nonnull
default <S> ObjFloatFunction<T, S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (t, value) -> after.apply(applyAsDouble(t, value));
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjShortToDoubleFunction.java

/**
 * Returns a composed {@link ObjShortFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this function is applied
 * @return A composed {@code ObjShortFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 */// w  w w  . j a v  a 2  s  .c o  m
@Nonnull
default <S> ObjShortFunction<T, S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (t, value) -> after.apply(applyAsDouble(t, value));
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjIntToDoubleFunction.java

/**
 * Returns a composed {@link ObjIntFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this function is applied
 * @return A composed {@code ObjIntFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 *///w w w  . j a v  a  2s  . com
@Nonnull
default <S> ObjIntFunction<T, S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (t, value) -> after.apply(applyAsDouble(t, value));
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjLongToDoubleFunction.java

/**
 * Returns a composed {@link ObjLongFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this function is applied
 * @return A composed {@code ObjLongFunction} that first applies this function to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 *//*from   w w w  .j  ava  2 s.com*/
@Nonnull
default <S> ObjLongFunction<T, S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (t, value) -> after.apply(applyAsDouble(t, value));
}

From source file:at.gridtec.lambda4j.operator.binary.DoubleBinaryOperator2.java

/**
 * Returns a composed {@link BiDoubleFunction} that first applies this operator to its input, and then applies the
 * {@code after} function to the result.
 * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
 *
 * @param <S> The type of return value from the {@code after} function, and of the composed function
 * @param after The function to apply after this operator is applied
 * @return A composed {@code BiDoubleFunction} that first applies this operator to its input, and then applies the
 * {@code after} function to the result.
 * @throws NullPointerException If given argument is {@code null}
 * @implSpec The input argument of this method is able to return every type.
 *//*ww w .  jav  a  2  s .  c  o m*/
@Nonnull
default <S> BiDoubleFunction<S> andThen(@Nonnull final DoubleFunction<? extends S> after) {
    Objects.requireNonNull(after);
    return (value1, value2) -> after.apply(applyAsDouble(value1, value2));
}