com.github.robtimus.sql.function

Interface DoubleSQLFunction<R>

Type Parameters:

R - 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 DoubleSQLFunction<R>

Represents a function that accepts a double-valued argument and produces a result. This is the SQLException throwing equivalent of DoubleFunction.

Method Summary

Modifier and Type	Method and Description
R	apply(double value) Applies this function to the given argument.
static <R> DoubleSQLFunction<R>	checked(DoubleFunction<? extends R> function) Returns a function that applies the function function to its input, and unwraps any UncheckedSQLException that is thrown by throwing its cause.
static <R> DoubleFunction<R>	unchecked(DoubleSQLFunction<? extends R> function) Returns a function that applies the function function to its input, and wraps any SQLException that is thrown in an UncheckedSQLException.

Method Detail

apply

R apply(double value)
 throws SQLException

Applies this function to the given argument.

Parameters:

value - The function argument.

Returns:

The function result.

Throws:

SQLException - If an SQL error occurs.

unchecked

static <R> DoubleFunction<R> unchecked(DoubleSQLFunction<? extends R> function)

Returns a function that applies the function function to its input, and wraps any SQLException that is thrown in an UncheckedSQLException.

Type Parameters:

R - The type of the result of the function.

Parameters:

function - The function to apply when the returned function is applied.

Returns:

A function that applies the function function to its input, and wraps any SQLException that is thrown in an UncheckedSQLException.

Throws:

NullPointerException - If function is null.

checked

static <R> DoubleSQLFunction<R> checked(DoubleFunction<? extends R> function)

Returns a function that applies the function function to its input, and unwraps any UncheckedSQLException that is thrown by throwing its cause.

Type Parameters:

R - The type of the result of the function.

Parameters:

function - The function to apply when the returned function is applied.

Returns:

A function that applies the function function to its input, and unwraps any UncheckedSQLException that is thrown.

Throws:

NullPointerException - If function is null.